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
The Vetus BOW7512D Bow Thruster 75 kgf is the better bow thruster overall, rated 3.4 to 3.0. The Vetus BOW7512D Bow Thruster 75 kgf leads on value, efficiency and weight. The Lewmar 185TT 4.0 kW Gen 2 Thruster wins on run time. The Vetus BOW7512D Bow Thruster 75 kgf costs $1,073.67 less ($2,026.32 vs $3,099.99).
Prices were last checked November 4, 2026. Product prices and availability are accurate as of that date and are subject to change; the price and availability shown on Amazon or the retailer's site at the time of purchase apply. As an Amazon Associate we earn from qualifying purchases.
Lewmar 185TT 4.0 kW Gen 2 Thruster
#8 in 45 to 75 kgfFull review
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.
Amazon $3,099.99$3,099.99
Which should you buy?
- Choose the Vetus BOW7512D Bow Thruster 75 kgf for value ($27.02 per kgf ($2,026.32, 75 kgf) vs $47.69 per kgf ($3,099.99, 65 kgf)), efficiency (17 kgf per kW (75 kgf, 4.4 kW) vs 16.2 kgf per kW (65 kgf, 4 kW)) and weight (3.9 kgf per kg (75 kgf, 19 kg) vs 3.2 kgf per kg (65 kgf, 20 kg)).
- Choose the Lewmar 185TT 4.0 kW Gen 2 Thruster for run time (3 minutes continuous vs 2 minutes continuous).
Scores side by side
Each factor is scored 0-100 against the same fixed reference points for every 45 to 75 kgf bow thruster; a clear win is highlighted. How we rank explains each one.
| Factor weight | Vetus BOW7512D Bow Thruster 75 kgf | Lewmar 185TT 4.0 kW Gen 2 Thruster |
|---|---|---|
| Overall rating | 3.4/5 | 3.0/5 |
| Value 40% | 95 $27.02 per kgf ($2,026.32, 75 kgf) | 56 $47.69 per kgf ($3,099.99, 65 kgf) |
| Efficiency 25% | 44 17 kgf per kW (75 kgf, 4.4 kW) | 32 16.2 kgf per kW (65 kgf, 4 kW) |
| Run time 25% | 0 2 minutes continuous | 33 3 minutes continuous |
| Weight 10% | 65 3.9 kgf per kg (75 kgf, 19 kg) | 42 3.2 kgf per kg (65 kgf, 20 kg) |
Specifications
| Vetus BOW7512D Bow Thruster 75 kgf | Lewmar 185TT 4.0 kW Gen 2 Thruster | |
|---|---|---|
| Thrust | ||
| Rated thrust | 75 kgf | 65 kgf |
| Style | Tunnel | Tunnel |
| Propellers | Single | Single |
| Bow or stern use | Yes | - |
| Boat length | 30-45 ft | - |
| Electrical | ||
| Supply | 12 V | 12 V |
| Motor | 4.4 kW | 4 kW |
| Current draw | 500 A | - |
| Continuous run | 2 min | 3 min |
| Build | ||
| Tunnel diameter | 185 mm | 185 mm |
| Weight | 19 kg | 20 kg (43 lb) |