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 VETUS’s own design.

VETUS · tunnel thruster · bow

VETUS Bow 180: specs, price and the boats it fits

It gives 397 lb (180 kgf) of push. It runs on 24 V.

  • Haul-out to install
  • DIY 2 of 5: wiring prep only
  • 3-year warranty

Not sold in the US right now. No US store or distributor lists the VETUS Bow 180: we checked Defender, Fisheries Supply and Citimarine on 15 October 2026. Its specs and parts stay here for owners of boats built or bought abroad. For one to buy here, see the models on the VETUS thruster review that have a US price.

Quick stats

  • Thrust 397 lb 180 kgf, VETUS's rating. The listing prints 405 lb
  • Boat length Not published See our sizing below
  • Price per lb of thrust Not worked out It needs a price and a thrust figure
  • Voltage 24 V As sold
  • Battery Not published Ask the maker before wiring
  • Run limit Not published Ask the maker before long use
  • To install it Haul-out The boat comes out of the water
  • Anodes $85.21 A change. More than twice another maker's

About the VETUS Bow 180

The Bow 180 fills the step between the Bow 160 and the Bow 220 in VETUS’s 250 mm tunnel range: 397 lb of push from a 7 kW motor on 24 V, by its manual.

US stores sell the 160 and the 220 but not this one, so for a US boat the nearest choices are those two. The manual gives a 400 A draw and a four-minute rating, and the unit weighs 55 kg without its tunnel.

Read more

At 400 A on 24 V the battery wants to sit near the bow on short, heavy cable. Brushes and the anode need a yearly check, and the three-year warranty runs through the selling dealer.

Installers will find the wiring figures and dimensions further down. For the rest of VETUS’s line, read the VETUS thruster review.

Where this summary comes from (3 sources, read 15 October 2026)

Will the VETUS Bow 180 steer your boat?

79 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 79 ft trawler the VETUS Bow 180 (397 lb) steers her in a 15 knot breeze. Her bow needs about 418 lb from a tunnel to steer her in a 15 knot breeze. Its 397 lb lands within 15 percent of that figure, which this site counts as enough.

The finder leaves it off her list. We found no US store that sells it, and the finder lists only units you can buy here.

27.6 FT LEVER VETUS Bow 180 pivot

A tunnel at the bow of a 79 ft trawler 418 lb ★ this unit · 1 to 3: the three cheapest others that steer her at 13 kt or more, installed

  1. ★ VETUS Bow 180 this unit 397 lb · tunnel no US price Steers her at 15 kt
  2. 1 Lewmar 250TT GEN 2 Tunnel Thruster 308 lb · tunnel from $13,203 Steers her at 13 kt
  3. 2 Max Power CT225 (composite leg) 551 lb · tunnel from $13,247 Steers her at 17 kt
  4. 3 Lewmar 300TT 10.8kW 24V 550 lb · tunnel from $16,346 Steers her at 17 kt

The VETUS Bow 180 on a trawler, by length

  1. 25 ft46 kt
  2. 30 ft39 kt
  3. 35 ft33 kt
  4. 40 ft29 kt
  5. 45 ft26 kt
  6. 50 ft23 kt
  7. 55 ft21 kt
  8. 60 ft19 kt
  9. 65 ft18 kt
  10. 70 ft17 kt
  11. 75 ft15 kt
  12. 80 ft14 kt

Outlined: the finder does not list it at that length (under 13 kt, far more than she needs, or outside VETUS’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 VETUS says No boat length Our sizing is the guide here
What our sizing says 59 to 80 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 55 to 80 ft None
Houseboat 41 to 59 ft 60 to 68 ftfull thrust to about 13 knots at 68 ft
Catamaran 63 to 80 ft None
Trawler 55 to 79 ft 80 ft onlyfull thrust to about 14 knots at 80 ft
Motor yacht 55 to 79 ft 80 ft onlyfull thrust to about 14 knots at 80 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 No length. More thrust than the boat needs.
Center console No length. More thrust than the boat needs.

The VETUS Bow 180 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 59 ft, and a sailboat to 80 ft.

The table tries the VETUS Bow 180 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. VETUS publishes no boat length, so thrust alone decides.

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

No US dollar price is published for the VETUS Bow 180, so we build no total for it. The yard’s share of the job is on the cost page.

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 2 of 5: Wiring prep only. The yard installs the unit and does the hull work; you do the wiring prep.

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: 4 to 16 hours Yard: 32 to 70 hours Electrician: 2 to 4 hours Plus a haul-out.

Your part needs:Heavy battery cableCrimping big lugs

Every step, and who does it three steps
  1. Cut, bond and fair the tunnel; fit the gear leg, motor and propeller 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.
  2. Mount the battery box, switch and fuse holder; run and secure the cables You 4 to 16 hours Our estimate. No maker times this step, and a first-time owner is slower than a yard, so the range is wide.
  3. Final connections at the battery and the motor, load test Electrician 2 to 4 hours Our estimate. Nobody publishes a time for the final connections and test on their own.

A qualified marine electrician should make the final connections and test them before first use. Hours are labor only.

Related videos

One from VETUS’s own channel and three from other channels. Each one is labeled. They play from YouTube only when you tap. Take any claim in a video back to the figures on this page, which are the ones we checked.

Installing a Vetus Bow ThrusterMagazine Power and Motoryacht, September 2020
Massive Upgrade- VETUS BOW THRUSTER; ENGINE & DC PANEL update [E22]Owner install Sailing Squalo, September 2022
Vetus bow thruster anode replacement on an Albin 28' yacht by Daily Divers Boat Service.Service how-to Daily Divers Boat Services, May 2025
Bow Thruster maintenance part 1Maker VETUS’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

There is no US price to divide by its thrust.

Controls

The solenoid switches and the 5 A control fuse are on the motor. The panel, its cable, the main fuse and switch are bought.

Want push you can dial in? The proportional VETUS Bow Pro Boosted 180 has the same thrust. It costs $7,749.

Pricey wear part: anodes

$85.21 a change

A change costs $85.21. That is over twice the $33.75 for Sleipner’s anode on the same 250 mm tunnel (SM201180A, Defender). 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

VETUS gives 3 years, or 1 for professional use, and it transfers to the next owner. Claims go through the dealer only. It is void unless an authorized VETUS dealer does the periodic maintenance, and transport, labor and lifting are excluded.

See VETUS’s warranty VETUS's warranty policy.

Special mentions

Nothing beyond the specs above.

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.

VETUS publishes no boat length for it. The boat table is our sizing alone.

No US dollar price is published for it, so we can work out no installed cost.

Parts for the VETUS Bow 180

See the VETUS Bow 180 manual

Search for the number as printed here, with no spaces. 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

the box

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

From VETUS’s BOW180 (250 mm) installation manual 020588.01 r6, January 2025, read 25 October 2026.

In the box
The manual prints no box list. It says the thruster is supplied with a zinc anode and has you drill with the template that comes with it.
Bought separately
The tunnel, the main switch (BATSW250 or BATSW600), the main fuse (ZE) and holder (ZEHC100), the cable, the control panel and its cable.
Charging
The manual wants the thruster on its own battery or batteries, close by so the power cables stay short, and sealed batteries if they share its compartment. Its wiring diagram shows an alternator and a battery separator, and it says nothing more about charging.

The manual’s words, page 22: “We also recommend that each bow thruster is powered by its own separate battery or batteries.”

A yard job adds these parts on top of the unit: $635 to $1,634 for the priced ones, at Fisheries Supply’s prices on 30 September 2026 and 26 October 2026, plus the batteries, cable and charger. The cost page has what every maker says about each part.

Outside the hull replacement parts in the water

3 parts

Zinc anode

The metal that wears away in the water so the drive does not. VETUS calls it “Zinc anode (guide column)”.

From VETUS's 2022 spare parts guide, which lists it in this model's row.

Part number SET0151
See it at Defender$94.99 Price read 29 Oct 2026

Propeller

The propeller on the drive. VETUS calls it “Prop / Schroef”.

From VETUS's 2022 spare parts guide, which lists it in this model's row.

Part number SET0090

Tailpiece (gear leg), complete

The leg under the motor that turns the propeller. VETUS calls it “Tailpiece / Staartstuk”.

From VETUS's 2022 spare parts guide, which lists it in this model's row.

Part number SET0080

Inside the boat replacement parts on board

4 parts

Replacement motor (comes with solenoids)

The heavy switch that sends battery power to the motor. VETUS calls it “Motor with solenoid for BOW1604DE & BOW18024D”.

VETUS's 2022 parts guide lists BP3018E for this model. Confirm with VETUS.

Part number VP000071
See it at VETUS No US price found

Solenoid set (the motor switch)

The heavy switch that sends battery power to the motor. VETUS calls it “Relais / Relay”.

From VETUS's 2022 spare parts guide, which lists it in this model's row.

Part number SET0044

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

The control at the helm. VETUS calls it “Dual joystick panel with time delay”.

Runs a bow and a stern thruster.

Part number BPJDE2

Control panel, on/off joystick

The control at the helm. VETUS calls it “Joystick panel with time delay”.

For one thruster.

Part number BPJE2
See it at Defender$347.81 Price read 29 Oct 2026

Spare part numbers come from VETUS’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 397 lb (180 kgf) As printed: "Rated thrust : 1800 N (180 kgf, 405 lbf)" - VETUS manual 020588.01 r06 (2025-01) BOW180, Technical data
Motor7 kW
Voltage24 V
Run limitNot published
Installation
TypeTunnel, fixed mount
End of the boatBow
Tunnel diameter250 mm
What it does to the hullTunnel bore below the waterline
Haul-out to install itYes
Maker’s boat lengthNot published
Price and ordering
Price No US price published
Part number BOW18024D24 V
Documents
Manual Installation manual (PDF)on the maker's site
The site’s reviewVETUS thruster review

Every published figure the site holds for the VETUS Bow 180, with where each came from.

Our notes from the manual and listings

In the box: The solenoid switches and the 5 A control fuse are on the motor. The panel, its cable, the main fuse and switch are bought.

Our note

A 24 V on/off unit in a 250 mm tunnel, between the Bow 160 and the Bow 220. The manual rates it at 180 kgf from a 7 kW motor drawing 400 A, four minutes at a time (S2), at 55 kg without the tunnel.

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
  • VETUS publishes no boat length for it. The boat table is our sizing alone.The maker's documents, as the database records them
  • No US dollar price is published for it, so we can work out no installed cost.The maker and the dealers the database reads

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.