Thrusterpedia

Which boat thruster, what it costs, how to get it installed

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Drawing of a tunnel thruster: a tube through the bow below the waterline, the hull cut away to show the motor on top.
Our drawing of a tunnel thruster, the same for every maker. It is not Quick’s own design.

Quick · tunnel thruster · bow

Quick BTQ 185 DC + cover: specs, price and the boats it fits

It gives 121 to 187 lb of push, across four sizes. Quick sells it for boats of 26 to 50 ft. It runs on 12 V.

The unit$4,562 to $6,033Equipment only, Quick USA, read 26 October 2026
Installed by a yard, 45 ft boat$12,262 to $22,865Our estimate: the unit, labor, haul-out, battery and parts
  • Haul-out to install
  • DIY 1 of 5: yard job
  • 3-year warranty

Choose a size

The Quick BTQ 185 DC Bow Thruster + cover comes in four sizes. Each has its own price, wiring and boats it suits. Pick one and the page below shows that size.

Every size side by side four sizes
Every size of the Quick BTQ 185 DC Bow Thruster + cover
SizePushVoltageQuick’s boat lengthPrice
BTQ 185 + cover, 55 KGF 121 lb (55 kgf) 12 V 26 to 36 ft $4,562
BTQ 185 + cover, 65 KGF 143 lb (65 kgf) 12 V 26 to 39 ft $6,016
BTQ 185 + cover, 75 KGF 165 lb (75 kgf) 12 V 33 to 43 ft $5,605
BTQ 185 + cover, 85 KGF 187 lb (85 kgf) 12 V 33 to 50 ft $6,033

From the database. The figures are Quick’s and the dealers’.

Quick stats

  • Thrust 121 lb 55 kgf, Quick's rating
  • Boat length 26 to 36 ft Quick's own range
  • Price per lb of thrust $37.70 Unit only. $100 to $123 installed
  • Voltage 12 V As sold
  • Battery at 12 V 550 CCA and 115 Ah One battery, near the thruster
  • Run limit Not published Quick prints none for the motor. Its control panel cuts the command after about five minutes
  • To install it Haul-out The boat comes out of the water
  • Anodes $121.39 A change. More than twice another maker's

Quick stats

  • Thrust 143 lb 65 kgf, Quick's rating
  • Boat length 26 to 39 ft Quick's own range
  • Price per lb of thrust $42.07 Unit only. $95 to $114 installed
  • Voltage 12 V As sold
  • Battery at 12 V 550 CCA and 120 Ah One battery, near the thruster
  • Run limit Not published Quick prints none for the motor. Its control panel cuts the command after about five minutes
  • To install it Haul-out The boat comes out of the water
  • Anodes $121.39 A change. More than twice another maker's

Quick stats

  • Thrust 165 lb 75 kgf, Quick's rating
  • Boat length 33 to 43 ft Quick's own range
  • Price per lb of thrust $33.97 Unit only. $81 to $115 installed
  • Voltage 12 V As sold
  • Battery at 12 V 800 CCA and 160 Ah One battery, near the thruster
  • Run limit Not published Quick prints none for the motor. Its control panel cuts the command after about five minutes
  • To install it Haul-out The boat comes out of the water
  • Anodes $121.39 A change. More than twice another maker's

Quick stats

  • Thrust 187 lb 85 kgf, Quick's rating. The listing prints 165.3 lb
  • Boat length 33 to 50 ft Quick's own range
  • Price per lb of thrust $32.26 Unit only. $74 to $122 installed
  • Voltage 12 V As sold
  • Battery at 12 V 1,000 CCA and 200 Ah One battery, near the thruster
  • Run limit Not published Quick prints none for the motor. Its control panel cuts the command after about five minutes
  • To install it Haul-out The boat comes out of the water
  • Anodes $121.39 A change. More than twice another maker's

About the Quick BTQ 185 DC + cover

This listing on Quick’s US store pairs a BTQ 185 bow thruster with a cover. You can pick one propeller or two, with about 121 to 187 lb of push on 12 V, starting at $4,562. The thruster itself is the same BTQ 185 or BTQ 185 DP that Quick sells on its own, from a maker in the thruster business since 2007.

At the same push, the cover version costs more than the plain unit, so ask Quick USA what the cover adds before you pay the difference. Either way the control panel, tube and fuse are bought separately, and Quick’s joystick alone is $540. Batteries, cable and a charger come to about $1,239 to $1,773 more. What else to buy is listed below.

Read more

The motor brushes and the drive coupling are the parts that wear on Quick’s 185 units, and Quick asks for a yearly strip-down with a new zinc. Quick says the thruster isn’t designed for nonstop running. The panel ends any run of about 5 minutes 40 seconds and blocks the thruster for 20 minutes while it cools. The three-year warranty needs service from someone Quick has authorized.

Installing it yourself? The installer section has every spec, and the Quick thruster review sets this model against the rest of the Quick range.

Where this summary comes from (9 sources, read 11 October 2026)

Will the Quick BTQ 185 DC Bow Thruster + cover steer your boat?

39 FT TRAWLER · BOW · 15 KT WIND

Size forThis page always opens on Steering.

Every knot figure here is wind speed, not boat speed or current.

Steers her at 16 kt

On a 39 ft trawler the Quick BTQ 185 DC Bow Thruster + cover (121 lb) steers her in a 16 knot breeze. Her bow needs about 103 lb from a tunnel to steer her in a 15 knot breeze.

The finder leaves it off her list. It shows the BTQ 185 + cover, 65 KGF for her instead.

13.6 FT LEVER BTQ 185 + cover pivot

A tunnel at the bow of a 39 ft trawler 103 lb ★ this unit · 1 to 3: the three cheapest others that steer her at 13 kt or more, installed

  1. ★ Quick BTQ 185 DC Bow Thruster + cover this unit 121 lb · tunnel from $12,162 Steers her at 16 kt
  2. 1 Lewmar 140TT Tunnel Thruster 82 lb · tunnel from $8,438 Steers her at 13 kt
  3. 2 VETUS Bow 45 99 lb · tunnel from $8,605 Steers her at 15 kt
  4. 3 Lewmar 140TT Tunnel Thruster Kit 82 lb · tunnel from $8,625 Steers her at 13 kt

The Quick BTQ 185 DC Bow Thruster + cover on a trawler, by length

  1. 25 ft25 kt
  2. 30 ft21 kt
  3. 35 ft18 kt
  4. 40 ft16 kt
  5. 45 ft14 kt
  6. 50 ft12.7 kt
  7. 55 ft12 kt
  8. 60 ft11 kt
  9. 65 ft10 kt
  10. 70 ft9 kt
  11. 75 ft9 kt
  12. 80 ft8 kt

Outlined: the finder does not list it at that length (under 13 kt, far more than she needs, or outside Quick’s own length range).

  • Under 10 kt
  • 10 to 15 kt
  • 15 to 20 kt: the sweet spot
  • Over 20 kt: more than she needs

Prices are the low end of the installed total, from our estimate. For your own boat, drive and installer, the finder prices each unit.

Is it right for your boat?

What Quick says 26 to 36 ft The maker's own range, from its listing
What our sizing says 33 to 39 ft Full thrust in 15 knots, across the kinds of boat it fits
Every kind of boat it fits, by length ten boat types
Which boats it fits, by length
Boat Full thrust at 15 knotsStill a fit, in lighter wind
Pontoon & tritoon Not listed. A pontoon has no hull body between the logs to bore a tunnel through, and nobody sells one for these boats.
Sailboat 31 to 39 ft None
Houseboat 30 to 33 ft 34 to 37 ftfull thrust to about 13 knots at 37 ft
Catamaran 35 to 39 ft None
Trawler 31 to 39 ft None
Motor yacht 35 to 39 ft None
Bass & flats Not listed. Nobody sells a tunnel kit for these hulls, and a bass boat’s shallow planing bow has almost no depth to hold one.
Wake & ski boats Not listed. Nobody sells a tunnel kit for these hulls.
Express cruiser 39 ft only None
Center console No length. More thrust than the boat needs.

The Quick BTQ 185 DC Bow Thruster + cover against each kind of boat, in a 15 knot wind. Our sizing, from the finder’s own rules.

The first column is where one unit gives all the thrust the boat needs in 15 knots. The second is where the finder still lists it: the unit steers her in a 13 or 14 knot wind, within 15 percent of the 15 knot breeze this site sizes for. On a boat shorter than the first column’s shortest length, the unit is more than the boat needs.

How we size it

Our figure is the longest boat one unit can steer in a 15 knot wind. It is a range because each kind of boat catches the wind differently. Here a houseboat gets full thrust to 33 ft, and a sailboat to 39 ft. The maker gives one range for every boat.

The table tries the Quick BTQ 185 DC Bow Thruster + cover on each kind of boat, at every length that kind of boat is built in. The wind is 15 knots and the rules are the finder’s own. A length counts as a fit when the unit gives the thrust that boat needs at the bow and the maker lists it for that length.

A boat up to 10 percent past the maker’s range still counts here, as it does in the finder. So the table runs up to 39 ft, just past Quick’s own range (26 to 36 ft).

It is sized for six kinds of boat here. For your own boat, the finder gives an answer that also counts your drive and who does the installing. The compare page sets this unit beside others.

What it costs installed

A yard job, everything in. Our estimate.

Installed by a yard
Boat Total installed
30 ft $12,002 to $14,599$99 to $121 a lb of thrust
35 ft $12,082 to $14,839$100 to $123 a lb of thrust
39 ft $12,162 to $17,369$101 to $144 a lb of thrust

From the shortest to the longest boat it is sized for.

What is in each total five lines

These totals are our estimate of a yard job: the unit’s price, plus a yard’s hours at $160 to $180 an hour, plus the batteries, cable and charger, plus the other parts the box does not hold. A Lifting the boat out of the water on a travel lift or a trailer so work can be done below the waterline. It is billed separately from the job itself. adds $540 to $1,880 at these lengths, with 5 to 7 days out of the water, worked from eight yards’ own rate cards. The hours come from what owners and yards report. The cost page builds the same figures line by line.

Each line of the estimate
Boat length The unit Yard labor Haul-out Batteries, cable, charger Other parts
30 ft $4,562 $5,120 to $5,760about 32 hours $540 to $1,450 $1,239 to $1,458 $541 to $1,369
35 ft $4,562 $5,120 to $5,760about 32 hours $620 to $1,690 $1,239 to $1,458 $541 to $1,369
39 ft $4,562 $5,120 to $8,10032 to 45 hours $700 to $1,880 $1,239 to $1,458 $541 to $1,369

For every length in the table above.

How the batteries, cable and charger add up. We price a battery bank close to the thruster, as the makers recommend, with 10 to 20 ft of cable out and back: red for the positive, black for the negative, cut to length. The low end is the cheapest battery that meets the figure and the shorter run; the high end is a sealed (AGM) battery and the longer run. The charger is a NOCO GEN5X2 two-bank shore charger.

Batteries and lugs are priced at Fisheries Supply and the cable and charger at Defender, read 26 October 2026.

  • At 12 V: one 12 V battery, at least 550 CCA and 115 Ah (Quick’s minimum), $998 for the battery; Quick’s cable table gives 1/0 to 3/0 AWG, priced on 1/0 to 4/0 AWG, the nearest size cut to length: $95 to $314 for the red and black cable and the lugs; a GEN5X2 charger, $146.

The sizing and the costs on this page are estimates, for guidance only and without warranty. They are no quote, and nobody has inspected your boat. Check them against the maker’s manual and your yard before you rely on them. Terms of use.

DIY breakdown

DIY 1 of 5: Yard job. A qualified professional does all of it.

DIY levels

  • Level 5: Owner install. No yard, no electrician.
  • Level 4: You install it, electrician connects. You mount and wire it; a marine electrician makes the final connections.
  • Level 3: Split with the yard. The yard does the below-waterline part; you do the wiring.
  • Level 2: Wiring prep only. The yard installs the unit and does the hull work; you do the wiring prep.
  • Level 1: Yard job. A qualified professional does all of it.

You Yard Electrician. The bar is labor hours; a haul-out is a note.

How we rate DIY

You: none Yard: 32 to 70 hours Electrician: in the yard’s hours Plus a haul-out.

Every step, and who does it one steps
  1. The whole job: hull, unit and wiring Yard 32 to 70 hours The low end is two crew over two days, the job as owners describe it on the forums. The high end rises with boat length between two real billed figures: 32 hours at 35 ft, and the largest invoice we hold, 70 hours at 47 ft.

Quick’s manual: “Installation and subsequent inspection or repair work must only be carried out by qualified personnel.” The manual.

Hours are labor only.

Will the Quick BTQ 185 DC Bow Thruster + cover steer your boat?

42 FT TRAWLER · BOW · 15 KT WIND

Size forThis page always opens on Steering.

Every knot figure here is wind speed, not boat speed or current.

Steers her at 17 kt

On a 42 ft trawler the Quick BTQ 185 DC Bow Thruster + cover (143 lb) steers her in a 17 knot breeze. Her bow needs about 118 lb from a tunnel to steer her in a 15 knot breeze.

The finder leaves it off her list. It shows the BTQ 185 + cover, 75 KGF for her instead.

14.7 FT LEVER BTQ 185 + cover pivot

A tunnel at the bow of a 42 ft trawler 118 lb ★ this unit · 1 to 3: the three cheapest others that steer her at 13 kt or more, installed

  1. ★ Quick BTQ 185 DC Bow Thruster + cover this unit 143 lb · tunnel from $13,751 Steers her at 17 kt
  2. 1 Max Power CT60 (12 V) 154 lb · tunnel from $8,816 Steers her at 17 kt
  3. 2 VETUS Bow 55 at 12 V 121 lb · tunnel from $8,830 Steers her at 15 kt
  4. 3 Max Power CT80 (12 V) 176 lb · tunnel from $8,877 Steers her at 18 kt

The Quick BTQ 185 DC Bow Thruster + cover on a trawler, by length

  1. 25 ft28 kt
  2. 30 ft23 kt
  3. 35 ft20 kt
  4. 40 ft18 kt
  5. 45 ft15 kt
  6. 50 ft14 kt
  7. 55 ft12.6 kt
  8. 60 ft12 kt
  9. 65 ft11 kt
  10. 70 ft10 kt
  11. 75 ft9 kt
  12. 80 ft9 kt

Outlined: the finder does not list it at that length (under 13 kt, far more than she needs, or outside Quick’s own length range).

  • Under 10 kt
  • 10 to 15 kt
  • 15 to 20 kt: the sweet spot
  • Over 20 kt: more than she needs

Prices are the low end of the installed total, from our estimate. For your own boat, drive and installer, the finder prices each unit.

Is it right for your boat?

What Quick says 26 to 39 ft The maker's own range, from its listing
What our sizing says 36 to 42 ft Full thrust in 15 knots, across the kinds of boat it fits
Every kind of boat it fits, by length ten boat types
Which boats it fits, by length
Boat Full thrust at 15 knotsStill a fit, in lighter wind
Pontoon & tritoon Not listed. A pontoon has no hull body between the logs to bore a tunnel through, and nobody sells one for these boats.
Sailboat 34 to 42 ft None
Houseboat 30 to 36 ft 37 to 40 ftfull thrust to about 13 knots at 40 ft
Catamaran 39 to 42 ft None
Trawler 34 to 42 ft None
Motor yacht 35 to 42 ft None
Bass & flats Not listed. Nobody sells a tunnel kit for these hulls, and a bass boat’s shallow planing bow has almost no depth to hold one.
Wake & ski boats Not listed. Nobody sells a tunnel kit for these hulls.
Express cruiser No length. More thrust than the boat needs.
Center console No length. More thrust than the boat needs.

The Quick BTQ 185 DC Bow Thruster + cover against each kind of boat, in a 15 knot wind. Our sizing, from the finder’s own rules.

The first column is where one unit gives all the thrust the boat needs in 15 knots. The second is where the finder still lists it: the unit steers her in a 13 or 14 knot wind, within 15 percent of the 15 knot breeze this site sizes for. On a boat shorter than the first column’s shortest length, the unit is more than the boat needs.

How we size it

Our figure is the longest boat one unit can steer in a 15 knot wind. It is a range because each kind of boat catches the wind differently. Here a houseboat gets full thrust to 36 ft, and a sailboat to 42 ft. The maker gives one range for every boat.

The table tries the Quick BTQ 185 DC Bow Thruster + cover on each kind of boat, at every length that kind of boat is built in. The wind is 15 knots and the rules are the finder’s own. A length counts as a fit when the unit gives the thrust that boat needs at the bow and the maker lists it for that length.

A boat up to 10 percent past the maker’s range still counts here, as it does in the finder. So the table runs up to 42 ft, just past Quick’s own range (26 to 39 ft).

It is sized for five kinds of boat here. For your own boat, the finder gives an answer that also counts your drive and who does the installing. The compare page sets this unit beside others.

What it costs installed

A yard job, everything in. Our estimate.

Installed by a yard
Boat Total installed
30 ft $13,541 to $16,053$95 to $112 a lb of thrust
35 ft $13,621 to $16,293$95 to $114 a lb of thrust
42 ft $13,751 to $20,593$96 to $144 a lb of thrust

From the shortest to the longest boat it is sized for.

What is in each total five lines

These totals are our estimate of a yard job: the unit’s price, plus a yard’s hours at $160 to $180 an hour, plus the batteries, cable and charger, plus the other parts the box does not hold. A Lifting the boat out of the water on a travel lift or a trailer so work can be done below the waterline. It is billed separately from the job itself. adds $540 to $2,030 at these lengths, with 5 to 7 days out of the water, worked from eight yards’ own rate cards. The hours come from what owners and yards report. The cost page builds the same figures line by line.

Each line of the estimate
Boat length The unit Yard labor Haul-out Batteries, cable, charger Other parts
30 ft $6,016 $5,120 to $5,760about 32 hours $540 to $1,450 $1,324 to $1,458 $541 to $1,369
35 ft $6,016 $5,120 to $5,760about 32 hours $620 to $1,690 $1,324 to $1,458 $541 to $1,369
42 ft $6,016 $5,120 to $9,72032 to 54 hours $750 to $2,030 $1,324 to $1,458 $541 to $1,369

For every length in the table above.

How the batteries, cable and charger add up. We price a battery bank close to the thruster, as the makers recommend, with 10 to 20 ft of cable out and back: red for the positive, black for the negative, cut to length. The low end is the cheapest battery that meets the figure and the shorter run; the high end is a sealed (AGM) battery and the longer run. The charger is a NOCO GEN5X2 two-bank shore charger.

Batteries and lugs are priced at Fisheries Supply and the cable and charger at Defender, read 26 October 2026.

  • At 12 V: one 12 V battery, at least 550 CCA and 120 Ah (Quick’s minimum), $998 for the battery; Quick’s cable table gives 3/0 to 2 x 1/0 AWG, priced on 4/0 AWG, the nearest size cut to length: $180 to $314 for the red and black cable and the lugs; a GEN5X2 charger, $146.

The sizing and the costs on this page are estimates, for guidance only and without warranty. They are no quote, and nobody has inspected your boat. Check them against the maker’s manual and your yard before you rely on them. Terms of use.

DIY breakdown

DIY 1 of 5: Yard job. A qualified professional does all of it.

DIY levels

  • Level 5: Owner install. No yard, no electrician.
  • Level 4: You install it, electrician connects. You mount and wire it; a marine electrician makes the final connections.
  • Level 3: Split with the yard. The yard does the below-waterline part; you do the wiring.
  • Level 2: Wiring prep only. The yard installs the unit and does the hull work; you do the wiring prep.
  • Level 1: Yard job. A qualified professional does all of it.

You Yard Electrician. The bar is labor hours; a haul-out is a note.

How we rate DIY

You: none Yard: 32 to 70 hours Electrician: in the yard’s hours Plus a haul-out.

Every step, and who does it one steps
  1. The whole job: hull, unit and wiring Yard 32 to 70 hours The low end is two crew over two days, the job as owners describe it on the forums. The high end rises with boat length between two real billed figures: 32 hours at 35 ft, and the largest invoice we hold, 70 hours at 47 ft.

Quick’s manual: “Installation and subsequent inspection or repair work must only be carried out by qualified personnel.” The manual.

Hours are labor only.

Will the Quick BTQ 185 DC Bow Thruster + cover steer your boat?

47 FT TRAWLER · BOW · 15 KT WIND

Size forThis page always opens on Steering.

Every knot figure here is wind speed, not boat speed or current.

Steers her at 16 kt

On a 47 ft trawler the Quick BTQ 185 DC Bow Thruster + cover (165 lb) steers her in a 16 knot breeze. Her bow needs about 148 lb from a tunnel to steer her in a 15 knot breeze.

The finder leaves it off her list. It shows the BTQ 185 + cover, 85 KGF for her instead.

16.4 FT LEVER BTQ 185 + cover pivot

A tunnel at the bow of a 47 ft trawler 148 lb ★ this unit · 1 to 3: the three cheapest others that steer her at 13 kt or more, installed

  1. ★ Quick BTQ 185 DC Bow Thruster + cover this unit 165 lb · tunnel from $13,530 Steers her at 16 kt
  2. 1 Max Power CT80 (12 V) 176 lb · tunnel from $9,067 Steers her at 16 kt
  3. 2 Lewmar 185TT GEN 2 Tunnel Thruster Package with Joystick 128 lb · tunnel from $9,149 Steers her at 14 kt
  4. 3 Max Power CT80 (24 V) 196 lb · tunnel from $9,327 Steers her at 17 kt

The Quick BTQ 185 DC Bow Thruster + cover on a trawler, by length

  1. 25 ft30 kt
  2. 30 ft25 kt
  3. 35 ft21 kt
  4. 40 ft19 kt
  5. 45 ft17 kt
  6. 50 ft15 kt
  7. 55 ft14 kt
  8. 60 ft12 kt
  9. 65 ft11 kt
  10. 70 ft11 kt
  11. 75 ft10 kt
  12. 80 ft9 kt

Outlined: the finder does not list it at that length (under 13 kt, far more than she needs, or outside Quick’s own length range).

  • Under 10 kt
  • 10 to 15 kt
  • 15 to 20 kt: the sweet spot
  • Over 20 kt: more than she needs

Prices are the low end of the installed total, from our estimate. For your own boat, drive and installer, the finder prices each unit.

Is it right for your boat?

What Quick says 33 to 43 ft The maker's own range, from its listing
What our sizing says 38 to 47 ft Full thrust in 15 knots, across the kinds of boat it fits
Every kind of boat it fits, by length ten boat types
Which boats it fits, by length
Boat Full thrust at 15 knotsStill a fit, in lighter wind
Pontoon & tritoon Not listed. A pontoon has no hull body between the logs to bore a tunnel through, and nobody sells one for these boats.
Sailboat 36 to 47 ft None
Houseboat 30 to 38 ft 39 to 43 ftfull thrust to about 13 knots at 43 ft
Catamaran 40 to 47 ft None
Trawler 35 to 47 ft None
Motor yacht 35 to 47 ft None
Bass & flats Not listed. Nobody sells a tunnel kit for these hulls, and a bass boat’s shallow planing bow has almost no depth to hold one.
Wake & ski boats Not listed. Nobody sells a tunnel kit for these hulls.
Express cruiser 45 to 47 ft None
Center console No length. More thrust than the boat needs.

The Quick BTQ 185 DC Bow Thruster + cover against each kind of boat, in a 15 knot wind. Our sizing, from the finder’s own rules.

The first column is where one unit gives all the thrust the boat needs in 15 knots. The second is where the finder still lists it: the unit steers her in a 13 or 14 knot wind, within 15 percent of the 15 knot breeze this site sizes for. On a boat shorter than the first column’s shortest length, the unit is more than the boat needs.

How we size it

Our figure is the longest boat one unit can steer in a 15 knot wind. It is a range because each kind of boat catches the wind differently. Here a houseboat gets full thrust to 38 ft, and a sailboat to 47 ft. The maker gives one range for every boat.

The table tries the Quick BTQ 185 DC Bow Thruster + cover on each kind of boat, at every length that kind of boat is built in. The wind is 15 knots and the rules are the finder’s own. A length counts as a fit when the unit gives the thrust that boat needs at the bow and the maker lists it for that length.

A boat up to 10 percent past the maker’s range still counts here, as it does in the finder. So the table runs down to 30 ft and up to 47 ft, just past Quick’s own range (33 to 43 ft).

It is sized for six kinds of boat here. For your own boat, the finder gives an answer that also counts your drive and who does the installing. The compare page sets this unit beside others.

What it costs installed

A yard job, everything in. Our estimate.

Installed by a yard
Boat Total installed
30 ft $13,130 to $15,642$80 to $95 a lb of thrust
40 ft $13,300 to $19,002$81 to $115 a lb of thrust
47 ft $13,530 to $23,302$82 to $141 a lb of thrust

From the shortest to the longest boat it is sized for.

What is in each total five lines

These totals are our estimate of a yard job: the unit’s price, plus a yard’s hours at $160 to $180 an hour, plus the batteries, cable and charger, plus the other parts the box does not hold. A Lifting the boat out of the water on a travel lift or a trailer so work can be done below the waterline. It is billed separately from the job itself. adds $540 to $2,270 at these lengths, with 5 to 7 days out of the water, worked from eight yards’ own rate cards. The hours come from what owners and yards report. The cost page builds the same figures line by line.

Each line of the estimate
Boat length The unit Yard labor Haul-out Batteries, cable, charger Other parts
30 ft $5,605 $5,120 to $5,760about 32 hours $540 to $1,450 $1,324 to $1,458 $541 to $1,369
40 ft $5,605 $5,120 to $8,64032 to 48 hours $710 to $1,930 $1,324 to $1,458 $541 to $1,369
47 ft $5,605 $5,120 to $12,60032 to 70 hours $940 to $2,270 $1,324 to $1,458 $541 to $1,369

For every length in the table above.

How the batteries, cable and charger add up. We price a battery bank close to the thruster, as the makers recommend, with 10 to 20 ft of cable out and back: red for the positive, black for the negative, cut to length. The low end is the cheapest battery that meets the figure and the shorter run; the high end is a sealed (AGM) battery and the longer run. The charger is a NOCO GEN5X2 two-bank shore charger.

Batteries and lugs are priced at Fisheries Supply and the cable and charger at Defender, read 26 October 2026.

  • At 12 V: one 12 V battery, at least 800 CCA and 160 Ah (Quick’s minimum), $998 for the battery; Quick’s cable table gives 3/0 to 2 x 1/0 AWG, priced on 4/0 AWG, the nearest size cut to length: $180 to $314 for the red and black cable and the lugs; a GEN5X2 charger, $146.

The sizing and the costs on this page are estimates, for guidance only and without warranty. They are no quote, and nobody has inspected your boat. Check them against the maker’s manual and your yard before you rely on them. Terms of use.

DIY breakdown

DIY 1 of 5: Yard job. A qualified professional does all of it.

DIY levels

  • Level 5: Owner install. No yard, no electrician.
  • Level 4: You install it, electrician connects. You mount and wire it; a marine electrician makes the final connections.
  • Level 3: Split with the yard. The yard does the below-waterline part; you do the wiring.
  • Level 2: Wiring prep only. The yard installs the unit and does the hull work; you do the wiring prep.
  • Level 1: Yard job. A qualified professional does all of it.

You Yard Electrician. The bar is labor hours; a haul-out is a note.

How we rate DIY

You: none Yard: 32 to 70 hours Electrician: in the yard’s hours Plus a haul-out.

Every step, and who does it one steps
  1. The whole job: hull, unit and wiring Yard 32 to 70 hours The low end is two crew over two days, the job as owners describe it on the forums. The high end rises with boat length between two real billed figures: 32 hours at 35 ft, and the largest invoice we hold, 70 hours at 47 ft.

Quick’s manual: “Installation and subsequent inspection or repair work must only be carried out by qualified personnel.” The manual.

Hours are labor only.

Will the Quick BTQ 185 DC Bow Thruster + cover steer your boat?

54 FT TRAWLER · BOW · 15 KT WIND

Size forThis page always opens on Steering.

Every knot figure here is wind speed, not boat speed or current.

Steers her at 15 kt

On a 54 ft trawler the Quick BTQ 185 DC Bow Thruster + cover (187 lb) steers her in a 15 knot breeze. Her bow needs about 195 lb from a tunnel to steer her in a 15 knot breeze. Its 187 lb lands within 15 percent of that figure, which this site counts as enough.

The finder lists it for her.

18.9 FT LEVER BTQ 185 + cover pivot

A tunnel at the bow of a 54 ft trawler 195 lb ★ this unit · 1 to 3: the three cheapest others that steer her at 13 kt or more, installed

  1. ★ Quick BTQ 185 DC Bow Thruster + cover this unit 187 lb · tunnel from $14,078 Steers her at 15 kt
  2. 1 Max Power CT100 231 lb · tunnel from $10,757 Steers her at 16 kt
  3. 2 VETUS Bow 95 at 12 V 210 lb · tunnel from $10,993 Steers her at 16 kt
  4. 3 Lewmar 185TT 6.0kW 214 lb · tunnel from $11,006 Steers her at 16 kt

The Quick BTQ 185 DC Bow Thruster + cover on a trawler, by length

  1. 25 ft31 kt
  2. 30 ft26 kt
  3. 35 ft23 kt
  4. 40 ft20 kt
  5. 45 ft18 kt
  6. 50 ft16 kt
  7. 55 ft14 kt
  8. 60 ft13 kt
  9. 65 ft12 kt
  10. 70 ft11 kt
  11. 75 ft11 kt
  12. 80 ft10 kt

Outlined: the finder does not list it at that length (under 13 kt, far more than she needs, or outside Quick’s own length range).

  • Under 10 kt
  • 10 to 15 kt
  • 15 to 20 kt: the sweet spot
  • Over 20 kt: more than she needs

Prices are the low end of the installed total, from our estimate. For your own boat, drive and installer, the finder prices each unit.

Is it right for your boat?

What Quick says 33 to 50 ft The maker's own range, from its listing
What our sizing says 41 to 55 ft Full thrust in 15 knots, across the kinds of boat it fits
Every kind of boat it fits, by length ten boat types
Which boats it fits, by length
Boat Full thrust at 15 knotsStill a fit, in lighter wind
Pontoon & tritoon Not listed. A pontoon has no hull body between the logs to bore a tunnel through, and nobody sells one for these boats.
Sailboat 38 to 55 ft None
Houseboat 30 to 41 ft 42 to 46 ftfull thrust to about 13 knots at 46 ft
Catamaran 43 to 55 ft None
Trawler 38 to 54 ft 55 ft onlyfull thrust to about 14 knots at 55 ft
Motor yacht 38 to 54 ft 55 ft onlyfull thrust to about 14 knots at 55 ft
Bass & flats Not listed. Nobody sells a tunnel kit for these hulls, and a bass boat’s shallow planing bow has almost no depth to hold one.
Wake & ski boats Not listed. Nobody sells a tunnel kit for these hulls.
Express cruiser 48 to 55 ft None
Center console No length. More thrust than the boat needs.

The Quick BTQ 185 DC Bow Thruster + cover against each kind of boat, in a 15 knot wind. Our sizing, from the finder’s own rules.

The first column is where one unit gives all the thrust the boat needs in 15 knots. The second is where the finder still lists it: the unit steers her in a 13 or 14 knot wind, within 15 percent of the 15 knot breeze this site sizes for. On a boat shorter than the first column’s shortest length, the unit is more than the boat needs.

How we size it

Our figure is the longest boat one unit can steer in a 15 knot wind. It is a range because each kind of boat catches the wind differently. Here a houseboat gets full thrust to 41 ft, and a sailboat to 55 ft. The maker gives one range for every boat.

The table tries the Quick BTQ 185 DC Bow Thruster + cover on each kind of boat, at every length that kind of boat is built in. The wind is 15 knots and the rules are the finder’s own. A length counts as a fit when the unit gives the thrust that boat needs at the bow and the maker lists it for that length.

A boat up to 10 percent past the maker’s range still counts here, as it does in the finder. So the table runs down to 30 ft and up to 55 ft, just past Quick’s own range (33 to 50 ft).

It is sized for six kinds of boat here. For your own boat, the finder gives an answer that also counts your drive and who does the installing. The compare page sets this unit beside others.

What it costs installed

A yard job, everything in. Our estimate.

Installed by a yard
Boat Total installed
30 ft $13,558 to $16,385$73 to $88 a lb of thrust
45 ft $13,818 to $22,865$74 to $122 a lb of thrust
55 ft $14,098 to $24,425$75 to $131 a lb of thrust

From the shortest to the longest boat it is sized for.

What is in each total five lines

These totals are our estimate of a yard job: the unit’s price, plus a yard’s hours at $160 to $180 an hour, plus the batteries, cable and charger, plus the other parts the box does not hold. A Lifting the boat out of the water on a travel lift or a trailer so work can be done below the waterline. It is billed separately from the job itself. adds $540 to $2,650 at these lengths, with 5 to 7 days out of the water, worked from eight yards’ own rate cards. The hours come from what owners and yards report. The cost page builds the same figures line by line.

Each line of the estimate
Boat length The unit Yard labor Haul-out Batteries, cable, charger Other parts
30 ft $6,033 $5,120 to $5,760about 32 hours $540 to $1,450 $1,324 to $1,773 $541 to $1,369
45 ft $6,033 $5,120 to $11,52032 to 64 hours $800 to $2,170 $1,324 to $1,773 $541 to $1,369
55 ft $6,033 $5,120 to $12,60032 to 70 hours $1,080 to $2,650 $1,324 to $1,773 $541 to $1,369

For every length in the table above.

How the batteries, cable and charger add up. We price a battery bank close to the thruster, as the makers recommend, with 10 to 20 ft of cable out and back: red for the positive, black for the negative, cut to length. The low end is the cheapest battery that meets the figure and the shorter run; the high end is a sealed (AGM) battery and the longer run. The charger is a NOCO GEN5X2 two-bank shore charger.

Batteries and lugs are priced at Fisheries Supply and the cable and charger at Defender, read 26 October 2026.

  • At 12 V: one 12 V battery, at least 1,000 CCA and 200 Ah (Quick’s minimum), $998 for the battery; Quick’s cable table gives 2 x 1/0 to 2 x 3/0 AWG, priced on 4/0 to 2 x 4/0 AWG, the nearest size cut to length: $180 to $629 for the red and black cable and the lugs; a GEN5X2 charger, $146.

The sizing and the costs on this page are estimates, for guidance only and without warranty. They are no quote, and nobody has inspected your boat. Check them against the maker’s manual and your yard before you rely on them. Terms of use.

DIY breakdown

DIY 1 of 5: Yard job. A qualified professional does all of it.

DIY levels

  • Level 5: Owner install. No yard, no electrician.
  • Level 4: You install it, electrician connects. You mount and wire it; a marine electrician makes the final connections.
  • Level 3: Split with the yard. The yard does the below-waterline part; you do the wiring.
  • Level 2: Wiring prep only. The yard installs the unit and does the hull work; you do the wiring prep.
  • Level 1: Yard job. A qualified professional does all of it.

You Yard Electrician. The bar is labor hours; a haul-out is a note.

How we rate DIY

You: none Yard: 32 to 70 hours Electrician: in the yard’s hours Plus a haul-out.

Every step, and who does it one steps
  1. The whole job: hull, unit and wiring Yard 32 to 70 hours The low end is two crew over two days, the job as owners describe it on the forums. The high end rises with boat length between two real billed figures: 32 hours at 35 ft, and the largest invoice we hold, 70 hours at 47 ft.

Quick’s manual: “Installation and subsequent inspection or repair work must only be carried out by qualified personnel.” The manual.

Hours are labor only.

Related videos

One of Quick’s own videos, from its YouTube channel. They play only when you tap. A maker’s video is its pitch, so take any claim back to the figures on this page.

QNE - BT QSY Thruster RangeMaker Quick’s own channel

Know before you buy

What sets this model apart, what it costs to keep, and what to weigh.

Price per pound of thrust

$37.70 a lb The unit’s price over its published thrust, on the smallest size. The bars are Quick’s next sizes and the nearest other makers.

Controls

The thruster, a drilling template, gasket and O-ring. The TCD panel and the fuse holder are bought.

  • Quick FNTCD2022000A00, no US price found.
  • Quick FNTCDEX06000A00, FNTCDEX08000A00, no US price found.

Pricey wear part: anodes

$121.39 a change

A change costs $121.39. That is nearly six times the $20.89 for Lewmar’s anode on the same 185 mm tunnel (589350, Fisheries Supply). An anode is a plain block of metal that wears away by design, so you will buy it again.

They sit below the waterline, so a change means a haul-out or a diver.

Service and warranty

Quick gives at least 3 years from purchase, with repair or replacement at Quick's discretion. It is void if maintenance is done by anyone Quick has not authorized, or with parts that are not original. Removal and reinstalling are at your cost.

See Quick’s warranty Quick USA's conditions of warranty.

Special mentions

Battery: at 12 V it wants one battery of 550 CCA and 115 Ah or more, Quick's figure. The cheapest that meets it is the Odyssey Extreme PC1800-FT start / deep cycle, $998.12.

Charger: a NOCO GEN5X2 two-bank shore charger, $146.41. It is the one our estimate prices.

Dealer prices at Fisheries Supply, read 26 October 2026.

What to weigh

The boat comes out of the water to install it: it needs a tunnel bore below the waterline.

Parts for the Quick BTQ 185 DC Bow Thruster + cover

See the Quick BTQ 185 DC + cover manual

The US dealer number comes first, then Quick’s own. Prices are each dealer’s on the day shown, before shipping and tax. Check the plate on your motor before you order: some parts change with the tunnel size, the voltage or the year.

For the install what the box leaves you to buy

24 parts

The manual button above opens it on the maker's site. It has the hull, wiring and fuse figures for this model.

From Quick’s BTQ Series installation manual REV 005A and the TCD control manual, September 2025, read 30 September 2026.

In the box
The thruster with its reversing contactor and anode, a drilling template, gasket, O-ring, the manual.
Bought separately
"Recommended Quick accessories not included": the TCD control panels, the line switch, the THF fuse holder. Plus the fuse, the cable, a battery disconnection switch, a 4 A control fuse and switch, the tube.
Charging
The manual gives a battery table by model, in amp-hours and cold cranking amps, and a diagram with the panel on the service battery. It says nothing about how the thruster bank is charged.

The manual’s words, page 10: “Standard supply and material included in the package: Thruster, Drilling template, Gasket, O-ring, Installation and use manual, Conditions of warranty.”

The “other parts” line in the estimate above covers these parts as a range, $541 to $1,369 at Fisheries Supply’s prices on 30 September 2026 and 26 October 2026, because the exact items depend on your boat. The batteries, cable and charger have a line of their own. The cost page has what every maker says about each part.

Tunnel tube

Fisheries Supply lists it as “Sleipner fiberglass tunnel tube, 185 mm bore, 750 mm”.

Sold in lengths from about 30 to 60 in. This is the shortest: the yard cuts the tube to the width of your hull at the thruster. No Quick tube is listed at this bore. This one is another maker's.

Part number SM8001

Control panel

Ask for Quick FNTCD2022000A00.

Not sold at Fisheries Supply. Ask a Quick dealer.

Part number See the line above.

Control cable, panel to thruster

Ask for Quick FNTCDEX06000A00, FNTCDEX08000A00.

Not sold at Fisheries Supply. Ask the panel dealer.

Part number See the line above.

Main fuse

Ask for 250 A CNL DIN fuse. This one is for the BTQ 185 + cover, 55 KGF, single propeller, 12 V version.

Quick's figure for the BTQ 1805512 (BTQ manual, REV005A). Quick lists its TFH holders for it. Not listed at Fisheries Supply; ask a Quick dealer.

Part number See the line above.

Main fuse

Ask for 275 A CNL DIN fuse. This one is for the BTQ 185 + cover, 65 KGF, twin propeller, 12 V version.

Quick's figure for the BTQ 1806512 (BTQ manual, REV005A). Quick lists its TFH holders for it. Not listed at Fisheries Supply; ask a Quick dealer.

Part number See the line above.

Main fuse

Ask for 350 A CNL DIN fuse. This one is for the BTQ 185 + cover, 75 KGF, single propeller, 12 V version.

Quick's figure for the BTQ 1807512 (BTQ manual, REV005A). Quick lists its TFH holders for it. Not listed at Fisheries Supply; ask a Quick dealer.

Part number See the line above.

Main fuse

Ask for 400 A CNL DIN fuse. This one is for the BTQ 185 + cover, 85 KGF, twin propeller, 12 V version.

Quick's figure for the BTQ 1808512 (BTQ manual, REV005A). Quick lists its TFH holders for it. Not listed at Fisheries Supply; ask a Quick dealer.

Part number See the line above.

Fuse holder

Ask for Quick TFH fuse holder for the CNL fuse.

Ask the dealer who sells the fuse.

Part number See the line above.

Battery switch

Fisheries Supply lists it as “m-Series 300 A battery switch, on/off”. This one is for the BTQ 185 + cover, 55 KGF, single propeller, 12 V version.

Rated at or above the 250 A main fuse. If your manual names its own switch, use that one.

Part number 2306

Battery switch

Fisheries Supply lists it as “m-Series 300 A battery switch, on/off”. This one is for the BTQ 185 + cover, 65 KGF, twin propeller, 12 V version.

Rated at or above the 275 A main fuse. If your manual names its own switch, use that one.

Part number 2306

Battery switch

Fisheries Supply lists it as “e-Series 350 A battery switch, on/off”. This one is for the BTQ 185 + cover, 75 KGF, single propeller, 12 V version.

Rated at or above the 350 A main fuse. If your manual names its own switch, use that one.

Part number 9003E

Battery switch

Fisheries Supply lists it as “HD-Series 600 A battery switch, on/off”. This one is for the BTQ 185 + cover, 85 KGF, twin propeller, 12 V version.

Rated at or above the 400 A main fuse. If your manual names its own switch, use that one.

Part number 3000

Control-circuit fuse holder

Fisheries Supply lists it as “Waterproof in-line ATO/ATC fuse holder”.

The maker asks for a 4 A fast-blow fuse on the control supply, with a switch.

Part number 5065

Batteries

Ask for 1 at 550 CCA and 115 Ah or more. This one is for the BTQ 185 + cover, 55 KGF, single propeller, 12 V version.

No listing at Fisheries Supply meets this in stock.

Part number See the line above.

Batteries

Ask for 1 at 550 CCA and 120 Ah or more. This one is for the BTQ 185 + cover, 65 KGF, twin propeller, 12 V version.

No listing at Fisheries Supply meets this in stock.

Part number See the line above.

Batteries

Ask for 1 at 800 CCA and 160 Ah or more. This one is for the BTQ 185 + cover, 75 KGF, single propeller, 12 V version.

No listing at Fisheries Supply meets this in stock.

Part number See the line above.

Batteries

Ask for 1 at 1,000 CCA and 200 Ah or more. This one is for the BTQ 185 + cover, 85 KGF, twin propeller, 12 V version.

No listing at Fisheries Supply meets this in stock.

Part number See the line above.

Battery cable, red and black

Defender lists it as “Ancor tinned battery cable 1/0 AWG, cut to length, red or black”. This one is for the BTQ 185 + cover, 55 KGF, single propeller, 12 V version.

This is the short run. A longer run takes heavier cable: the wiring calculator sizes yours. You need 5 ft of each color. For about 10 ft of cable in all, out and back. Measure your run and check it against the cable table in the manual: never go smaller than it asks for.

Part number None on the listing. Order it by name.

Battery cable, red and black

Defender lists it as “Ancor tinned battery cable 4/0 AWG, cut to length, red or black”. This one is for the BTQ 185 + cover, 65 KGF, twin propeller, 12 V and BTQ 185 + cover, 75 KGF, single propeller, 12 V version.

You need 10 ft of each color. For about 20 ft of cable in all, out and back. Measure your run and check it against the cable table in the manual: never go smaller than it asks for.

Part number None on the listing. Order it by name.

Battery cable, red and black

Defender lists it as “Ancor tinned battery cable 4/0 AWG, cut to length, red or black”. This one is for the BTQ 185 + cover, 85 KGF, twin propeller, 12 V version.

This is the short run. A longer run takes heavier cable: the wiring calculator sizes yours. You need 5 ft of each color. For about 10 ft of cable in all, out and back. Measure your run and check it against the cable table in the manual: never go smaller than it asks for.

Part number None on the listing. Order it by name.

Cable lugs

Fisheries Supply lists it as “Tin-plated starter lugs, 1/0 AWG, bag of 10”. This one is for the BTQ 185 + cover, 55 KGF, single propeller, 12 V version.

This is the short run. A longer run takes heavier cable: the wiring calculator sizes yours. The listing runs $23.74 to $28.04 by stud size. Eight ends on one run, with two spare.

Part number 91066-P10

Cable lugs

Fisheries Supply lists it as “Tin-plated starter lugs, 4/0 AWG, bag of 10”. This one is for the BTQ 185 + cover, 65 KGF, twin propeller, 12 V and BTQ 185 + cover, 75 KGF, single propeller, 12 V version.

The listing runs $47.52 to $49.44 by stud size. Eight ends on one run, with two spare.

Part number 91066-P10

Cable lugs

Fisheries Supply lists it as “Tin-plated starter lugs, 4/0 AWG, bag of 10”. This one is for the BTQ 185 + cover, 85 KGF, twin propeller, 12 V version.

This is the short run. A longer run takes heavier cable: the wiring calculator sizes yours. The listing runs $47.52 to $49.44 by stud size. Eight ends on one run, with two spare.

Part number 91066-P10

Charger

Fisheries Supply lists it as “GEN5X2 on-board charger, 10 A, 2 banks”.

Or a DC-to-DC charger from the house system: ask the electrician.

Part number GEN5X2

Outside the hull replacement parts in the water

3 parts

Anode

The metal that wears away in the water so the drive does not. Quick calls it “BTQ Anodes, Model 185”.

Read on Quick USA, Quick's own US store; Quick's manual site could not be opened. Listed for the BTQ 185, single and double propeller.

Part number FVSGANBTQ18AA00
See it at Quick USA$121.39 Price read 29 Oct 2026

Propeller, left hand

The propeller on the drive. Quick calls it “Propellers, Model BTQ/BTR 185, Prop Side Left”.

Read on Quick USA, Quick's own US store; Quick's manual site could not be opened. Quick USA lists right and left hand props for the 185. Double propeller units take one of each; check which hand a single propeller unit takes before ordering.

Part number FVSGEL185L05A00
See it at Quick USA$75.87 Price read 29 Oct 2026

Propeller, right hand

The propeller on the drive. Quick calls it “Propellers, Model BTQ/BTR 185, Prop Side Right”.

Read on Quick USA, Quick's own US store; Quick's manual site could not be opened. Quick USA lists right and left hand props for the 185. Double propeller units take one of each; check which hand a single propeller unit takes before ordering.

Part number FVSGEL185R05A00
See it at Quick USA$75.87 Price read 29 Oct 2026

Inside the boat replacement parts on board

4 parts

Control panel, on/off dual joystick (bow and stern)

The control at the helm. Quick calls it “TCD 2044 thruster double joystick controller”.

Runs a bow and a stern thruster.

Part number FNTCD2044000A00 Quick TCD2044
See it at Quick USA$952.77 Price read 29 Oct 2026

Control panel, on/off push buttons

The control at the helm. Quick calls it “TCD 2022 thruster controller”.

Its manual holds the run limit.

Part number FNTCD2022000B00 Quick TCD2022
See it at Quick USA$465.12 Price read 29 Oct 2026

Control panel, on/off single joystick

The control at the helm. Quick calls it “TCD 2042 thruster joystick control”.

Part number FNTCD2042000C00 Quick TCD2042
See it at Quick USA$539.67 Price read 29 Oct 2026

Motor coupling kit

The electric motor that turns the propeller. Quick calls it “Quick OSP Coupling Kit, BTQ185”.

Read on Quick USA, Quick's own US store; Quick's manual site could not be opened. The coupling joins the motor to the drive.

Part number FVSGG1851414A00
See it at Quick USA$257.32 Price read 29 Oct 2026

The install parts are matched to Quick’s own figures and priced at Fisheries Supply, with the battery cable at Defender, cut to length.

Spare part numbers come from Quick’s parts pages and manuals. A dealer may sell a part we have not priced. Search for the number.

Other sizes and close alternatives

Compare them side by side

The other makers listed are the nearest match each makes, of the same style and for the same end, within a quarter of its thrust. The compare page lists every model, and the thruster index lists every model with a page here.

For the yard and the installer

Every published figure, with its source.

Full spec sheet thrust, motor, mounting, price, part number, documents
Full spec sheet
Thrust and motor
Thrust 121 lb (55 kgf) As printed: 55 Kgf (121 lb)
Motor3 kW
Voltage12 V
Run limitNot published
Installation
TypeTunnel, fixed mount
End of the boatBow
Tunnel diameter185 mm
What it does to the hullTunnel bore below the waterline
Haul-out to install itYes
Maker’s boat length26 to 36 ft
Price and ordering
Price $4,562 equipment only, the maker's own price, quickusastore.com, 26 October 2026
Part number FGBT18055120TP0BTQ 185 + cover, 55 KGF, single propeller, 12 V
FGBT18065120TP0BTQ 185 + cover, 65 KGF, twin propeller, 12 V
FGBT18075120TP0BTQ 185 + cover, 75 KGF, single propeller, 12 V
FGBT18085120TP0BTQ 185 + cover, 85 KGF, twin propeller, 12 V
Documents
Manual Installation manual (PDF)on the maker's site
The site’s reviewQuick thruster review

Every published figure the site holds for the Quick BTQ 185 DC Bow Thruster + cover, with where each came from.

The tunnel: length and depth rules

Tunnel length. The optimal length is three to four times the tube diameter. A ratio of up to six can be tolerated. Longer tubes lose more of the thrust to friction. Quick’s installation manual.

Depth below the waterline. In the bow and as low as possible, at least 0.75 times the tunnel diameter below the waterline, to avoid cavitation at the propeller. BTQ250 and BTQ300 installation manual, REV006C.

Our notes from the manual and listings

In the box: The thruster, a drilling template, gasket and O-ring. The TCD panel and the fuse holder are bought.

BTQ 185 + cover, 55 KGF, single propeller, 12 V

A BTQ 185 sold with a cover on Quick's US store: the single-propeller 55 kgf version at 12 V. That list matches neither the line's single-propeller 55, 75 and 95 nor its twin 65, 85 and 105. The row carries the smallest. The same units are on the BTQ 185 and BTQ 185 DP rows with the manual's figures. No product page gives a run time.

The installation manual says the unit is not designed for continuous use and leaves the limit to the control panel. The panel's own manual cuts the command after about five minutes and resets it after a cool-down the panel computes. The price is Quick's US store's own for this size at 12 V, read 12 October.

BTQ 185 + cover, 65 KGF, twin propeller, 12 V

A BTQ 185 sold with a cover on Quick's US store: the twin-propeller 65 kgf version at 12 V.

BTQ 185 + cover, 75 KGF, single propeller, 12 V

A BTQ 185 sold with a cover on Quick's US store: the single-propeller 75 kgf version at 12 V.

BTQ 185 + cover, 85 KGF, twin propeller, 12 V

A BTQ 185 sold with a cover on Quick's US store: the twin-propeller 85 kgf version at 12 V.

Where each point above comes from
  • The boat comes out of the water to install it: it needs a tunnel bore below the waterline.The mounting: a bore through the hull, or a housing recessed into it

For the yard and the installer

Every published figure, with its source.

Full spec sheet thrust, motor, mounting, price, part number, documents
Full spec sheet
Thrust and motor
Thrust 143 lb (65 kgf) As printed: 65 Kgf (143.3 lb)
Motor3.3 kW
Voltage12 V
Run limitNot published
Installation
TypeTunnel, fixed mount
End of the boatBow
Tunnel diameter185 mm
What it does to the hullTunnel bore below the waterline
Haul-out to install itYes
Maker’s boat length26 to 39 ft
Price and ordering
Price $6,016 equipment only, the maker's own price, quickusastore.com, 26 October 2026
Part number FGBT18055120TP0BTQ 185 + cover, 55 KGF, single propeller, 12 V
FGBT18065120TP0BTQ 185 + cover, 65 KGF, twin propeller, 12 V
FGBT18075120TP0BTQ 185 + cover, 75 KGF, single propeller, 12 V
FGBT18085120TP0BTQ 185 + cover, 85 KGF, twin propeller, 12 V
Documents
Manual Installation manual (PDF)on the maker's site
The site’s reviewQuick thruster review

Every published figure the site holds for the Quick BTQ 185 DC Bow Thruster + cover, with where each came from.

The tunnel: length and depth rules

Tunnel length. The optimal length is three to four times the tube diameter. A ratio of up to six can be tolerated. Longer tubes lose more of the thrust to friction. Quick’s installation manual.

Depth below the waterline. In the bow and as low as possible, at least 0.75 times the tunnel diameter below the waterline, to avoid cavitation at the propeller. BTQ250 and BTQ300 installation manual, REV006C.

Our notes from the manual and listings

In the box: The thruster, a drilling template, gasket and O-ring. The TCD panel and the fuse holder are bought.

BTQ 185 + cover, 55 KGF, single propeller, 12 V

A BTQ 185 sold with a cover on Quick's US store: the single-propeller 55 kgf version at 12 V. That list matches neither the line's single-propeller 55, 75 and 95 nor its twin 65, 85 and 105. The row carries the smallest. The same units are on the BTQ 185 and BTQ 185 DP rows with the manual's figures. No product page gives a run time.

The installation manual says the unit is not designed for continuous use and leaves the limit to the control panel. The panel's own manual cuts the command after about five minutes and resets it after a cool-down the panel computes. The price is Quick's US store's own for this size at 12 V, read 12 October.

BTQ 185 + cover, 65 KGF, twin propeller, 12 V

A BTQ 185 sold with a cover on Quick's US store: the twin-propeller 65 kgf version at 12 V.

BTQ 185 + cover, 75 KGF, single propeller, 12 V

A BTQ 185 sold with a cover on Quick's US store: the single-propeller 75 kgf version at 12 V.

BTQ 185 + cover, 85 KGF, twin propeller, 12 V

A BTQ 185 sold with a cover on Quick's US store: the twin-propeller 85 kgf version at 12 V.

Where each point above comes from
  • The boat comes out of the water to install it: it needs a tunnel bore below the waterline.The mounting: a bore through the hull, or a housing recessed into it

For the yard and the installer

Every published figure, with its source.

Full spec sheet thrust, motor, mounting, price, part number, documents
Full spec sheet
Thrust and motor
Thrust 165 lb (75 kgf) As printed: 75 Kgf (165.3 lb)
Motor4 kW
Voltage12 V
Run limitNot published
Installation
TypeTunnel, fixed mount
End of the boatBow
Tunnel diameter185 mm
What it does to the hullTunnel bore below the waterline
Haul-out to install itYes
Maker’s boat length33 to 43 ft
Price and ordering
Price $5,605 equipment only, the maker's own price, quickusastore.com, 26 October 2026
Part number FGBT18055120TP0BTQ 185 + cover, 55 KGF, single propeller, 12 V
FGBT18065120TP0BTQ 185 + cover, 65 KGF, twin propeller, 12 V
FGBT18075120TP0BTQ 185 + cover, 75 KGF, single propeller, 12 V
FGBT18085120TP0BTQ 185 + cover, 85 KGF, twin propeller, 12 V
Documents
Manual Installation manual (PDF)on the maker's site
The site’s reviewQuick thruster review

Every published figure the site holds for the Quick BTQ 185 DC Bow Thruster + cover, with where each came from.

The tunnel: length and depth rules

Tunnel length. The optimal length is three to four times the tube diameter. A ratio of up to six can be tolerated. Longer tubes lose more of the thrust to friction. Quick’s installation manual.

Depth below the waterline. In the bow and as low as possible, at least 0.75 times the tunnel diameter below the waterline, to avoid cavitation at the propeller. BTQ250 and BTQ300 installation manual, REV006C.

Our notes from the manual and listings

In the box: The thruster, a drilling template, gasket and O-ring. The TCD panel and the fuse holder are bought.

BTQ 185 + cover, 55 KGF, single propeller, 12 V

A BTQ 185 sold with a cover on Quick's US store: the single-propeller 55 kgf version at 12 V. That list matches neither the line's single-propeller 55, 75 and 95 nor its twin 65, 85 and 105. The row carries the smallest. The same units are on the BTQ 185 and BTQ 185 DP rows with the manual's figures. No product page gives a run time.

The installation manual says the unit is not designed for continuous use and leaves the limit to the control panel. The panel's own manual cuts the command after about five minutes and resets it after a cool-down the panel computes. The price is Quick's US store's own for this size at 12 V, read 12 October.

BTQ 185 + cover, 65 KGF, twin propeller, 12 V

A BTQ 185 sold with a cover on Quick's US store: the twin-propeller 65 kgf version at 12 V.

BTQ 185 + cover, 75 KGF, single propeller, 12 V

A BTQ 185 sold with a cover on Quick's US store: the single-propeller 75 kgf version at 12 V.

BTQ 185 + cover, 85 KGF, twin propeller, 12 V

A BTQ 185 sold with a cover on Quick's US store: the twin-propeller 85 kgf version at 12 V.

Where each point above comes from
  • The boat comes out of the water to install it: it needs a tunnel bore below the waterline.The mounting: a bore through the hull, or a housing recessed into it

For the yard and the installer

Every published figure, with its source.

Full spec sheet thrust, motor, mounting, price, part number, documents
Full spec sheet
Thrust and motor
Thrust 187 lb (85 kgf) As printed: 85 Kgf (165.3 lb)
Motor4.3 kW
Voltage12 V
Run limitNot published
Installation
TypeTunnel, fixed mount
End of the boatBow
Tunnel diameter185 mm
What it does to the hullTunnel bore below the waterline
Haul-out to install itYes
Maker’s boat length33 to 50 ft
Price and ordering
Price $6,033 equipment only, the maker's own price, quickusastore.com, 26 October 2026
Part number FGBT18055120TP0BTQ 185 + cover, 55 KGF, single propeller, 12 V
FGBT18065120TP0BTQ 185 + cover, 65 KGF, twin propeller, 12 V
FGBT18075120TP0BTQ 185 + cover, 75 KGF, single propeller, 12 V
FGBT18085120TP0BTQ 185 + cover, 85 KGF, twin propeller, 12 V
Documents
Manual Installation manual (PDF)on the maker's site
The site’s reviewQuick thruster review

Every published figure the site holds for the Quick BTQ 185 DC Bow Thruster + cover, with where each came from.

The tunnel: length and depth rules

Tunnel length. The optimal length is three to four times the tube diameter. A ratio of up to six can be tolerated. Longer tubes lose more of the thrust to friction. Quick’s installation manual.

Depth below the waterline. In the bow and as low as possible, at least 0.75 times the tunnel diameter below the waterline, to avoid cavitation at the propeller. BTQ250 and BTQ300 installation manual, REV006C.

Our notes from the manual and listings

In the box: The thruster, a drilling template, gasket and O-ring. The TCD panel and the fuse holder are bought.

BTQ 185 + cover, 55 KGF, single propeller, 12 V

A BTQ 185 sold with a cover on Quick's US store: the single-propeller 55 kgf version at 12 V. That list matches neither the line's single-propeller 55, 75 and 95 nor its twin 65, 85 and 105. The row carries the smallest. The same units are on the BTQ 185 and BTQ 185 DP rows with the manual's figures. No product page gives a run time.

The installation manual says the unit is not designed for continuous use and leaves the limit to the control panel. The panel's own manual cuts the command after about five minutes and resets it after a cool-down the panel computes. The price is Quick's US store's own for this size at 12 V, read 12 October.

BTQ 185 + cover, 65 KGF, twin propeller, 12 V

A BTQ 185 sold with a cover on Quick's US store: the twin-propeller 65 kgf version at 12 V.

BTQ 185 + cover, 75 KGF, single propeller, 12 V

A BTQ 185 sold with a cover on Quick's US store: the single-propeller 75 kgf version at 12 V.

BTQ 185 + cover, 85 KGF, twin propeller, 12 V

A BTQ 185 sold with a cover on Quick's US store: the twin-propeller 85 kgf version at 12 V.

Where each point above comes from
  • The boat comes out of the water to install it: it needs a tunnel bore below the waterline.The mounting: a bore through the hull, or a housing recessed into it

Not sure this is the one? The thruster finder asks about your boat and prices every unit that fits.

Where to go next

The specs are the maker’s and the dealers’, on the dates shown. The sizing and the costs are our arithmetic, done without seeing your boat.