Lewmar 185TT 3.0 kW Gen 2 Thruster
#5 in 45 to 75 kgfFull review
Lewmar’s mid-large thruster. It matches a Sleipner SE60 on thrust but costs about $300 more.
Amazon $2,197.12$2,197.12
3.0/5
The strongest 12 V Lewmar in this list. It costs about $48 per kgf; a Vetus BOW7512D gives more thrust for about $1,000 less.
- 65 kgfThrust
- 4 kWMotor
- 12 VSupply
- 185 mmTunnel
Check price at Amazon$3,099.99
Price checked November 4, 2026. As an Amazon Associate we earn from qualifying purchases.
Pros
- 65 kgf from the same 185 mm tunnel and 20 kg unit as the 3.0 kW model
- Stainless steel gearbox
- Control panel powers down after 3 minutes of continuous use
Cons
- Costs $900 more than the 3.0 kW model for 7 kgf more thrust
- Lewmar publishes no boat length range for it
- Control panel not included
The Lewmar TT Gen 2 family
Every Lewmar TT Gen 2 model we rank, smallest first. Ratings compare each against its own thrust.
| Model | Thrust | Rating | Price |
|---|---|---|---|
| Lewmar 140TT 2.2 kW Gen 2 Thruster | 42 kgf | 3.4/5 | $1,839.37 |
| Lewmar 185TT 3.0 kW Gen 2 Thruster | 58 kgf | 3.6/5 | $2,197.12 |
| Lewmar 185TT 4.0 kW Gen 2 Thruster (this one) | 65 kgf | 3.0/5 | $3,099.99 |
How it scores
The rating comes from 4 measured or published factors, each scored 0-100 against fixed reference points for its thrust. How we rank explains each one.
Specifications
| Model number | 185TT4.0 |
|---|---|
| Thrust | |
| Rated thrust | 65 kgf |
| Style | Tunnel |
| Propellers | Single |
| Electrical | |
| Supply | 12 V |
| Motor | 4 kW |
| Continuous run | 3 min |
| Build | |
| Tunnel diameter | 185 mm |
| Weight | 20 kg (43 lb) |
Alternatives in this thrust
Vetus BOW7512D Bow Thruster 75 kgf
#6 in 45 to 75 kgfFull review
The lowest price per kgf in the list and the best value for a 30 to 45 ft boat.
Amazon $2,026.32$2,026.32
Vetus BOW4512D Bow Thruster 45 kgf
#7 in 45 to 75 kgfFull review
A solid, well supported thruster for a 26 to 37 ft boat, but you pay about $390 more than Sleipner for similar thrust.
Amazon $1,836.41$1,836.41
Compare
Compare the Lewmar 185TT 4.0 kW Gen 2 Thruster with any other bow thruster →
More from Lewmar: every Lewmar product ranked.