Sleipner SE80 Tunnel Thruster 12V
#3 in Over 75 kgfFull review
Strong thrust for a 33 to 49 ft boat that has only a 12 V system. If you can run 24 V, the 24 V version needs about half the current.
Amazon $2,700$2,700
The Sleipner SE80 Tunnel Thruster 12V rates 3.7 among over 75 kgf bow thrusters; the Vetus BOW7512D Bow Thruster 75 kgf rates 3.4 among 45 to 75 kgf ones. The Vetus BOW7512D Bow Thruster 75 kgf costs $673.68 less ($2,026.32 vs $2,700).
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.
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
Scores side by side
These two sit in different thrust classes (over 75 kgf and 45 to 75 kgf), and each is scored against the reference points for its own class, so a rating says how well each does among its own thrust peers. How we rank explains each factor.
| Factor weight | Sleipner SE80 Tunnel Thruster 12V | Vetus BOW7512D Bow Thruster 75 kgf |
|---|---|---|
| Overall rating | 3.7/5 | 3.4/5 |
| Value 40% | 80 $33.75 per kgf ($2,700, 80 kgf) | 95 $27.02 per kgf ($2,026.32, 75 kgf) |
| Efficiency 25% | 60 18.2 kgf per kW (80 kgf, 4.4 kW) | 44 17 kgf per kW (75 kgf, 4.4 kW) |
| Run time 25% | 33 3 minutes continuous | 0 2 minutes continuous |
| Weight 10% | 67 4 kgf per kg (80 kgf, 20 kg) | 65 3.9 kgf per kg (75 kgf, 19 kg) |
Specifications
| Sleipner SE80 Tunnel Thruster 12V | Vetus BOW7512D Bow Thruster 75 kgf | |
|---|---|---|
| Thrust | ||
| Rated thrust | 80 kgf | 75 kgf |
| Thrust at full supply voltage | 96 kgf | - |
| Style | Tunnel | Tunnel |
| Propellers | Twin | Single |
| Bow or stern use | Yes | Yes |
| Boat length | 33-49 ft | 30-45 ft |
| Electrical | ||
| Supply | 12 V | 12 V |
| Motor | 4.4 kW | 4.4 kW |
| Current draw | 530 A | 500 A |
| Continuous run | 3 min | 2 min |
| Build | ||
| Tunnel diameter | 185 mm | 185 mm |
| Weight | 20 kg (44.1 lb) | 19 kg |