Sleipner SE50 Tunnel Bow Thruster 12V
#2 in 45 to 75 kgfFull review
A mid-size bow thruster for a 26 to 36 ft boat. Buy the SE60 instead if you also want a stern thruster of the same family.
Amazon $1,700$1,700
The Sleipner SE50 Tunnel Bow Thruster 12V and the Sleipner SE60 Tunnel Thruster 12V are evenly matched, rated 3.9 and 3.9. The Sleipner SE50 Tunnel Bow Thruster 12V leads on efficiency. The Sleipner SE60 Tunnel Thruster 12V wins on weight. The Sleipner SE50 Tunnel Bow Thruster 12V costs $200 less ($1,700 vs $1,900).
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.
Sleipner SE60 Tunnel Thruster 12V
#4 in 45 to 75 kgfFull review
The best value in the range for a 30 to 39 ft boat, with enough thrust for a heavy cruiser in moderate wind.
Amazon $1,900$1,900
Which should you buy?
- Choose the Sleipner SE50 Tunnel Bow Thruster 12V for efficiency (20.8 kgf per kW (50 kgf, 2.4 kW) vs 19.4 kgf per kW (60 kgf, 3.1 kW)).
- Choose the Sleipner SE60 Tunnel Thruster 12V for weight (4 kgf per kg (60 kgf, 15 kg) vs 3.3 kgf per kg (50 kgf, 15 kg)).
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 | Sleipner SE50 Tunnel Bow Thruster 12V | Sleipner SE60 Tunnel Thruster 12V |
|---|---|---|
| Overall rating | 3.9/5 | 3.9/5 |
| Value 40% | 79 $34 per kgf ($1,700, 50 kgf) | 84 $31.67 per kgf ($1,900, 60 kgf) |
| Efficiency 25% | 98 20.8 kgf per kW (50 kgf, 2.4 kW) | 76 19.4 kgf per kW (60 kgf, 3.1 kW) |
| Run time 25% | 33 3 minutes continuous | 33 3 minutes continuous |
| Weight 10% | 44 3.3 kgf per kg (50 kgf, 15 kg) | 67 4 kgf per kg (60 kgf, 15 kg) |
Specifications
| Sleipner SE50 Tunnel Bow Thruster 12V | Sleipner SE60 Tunnel Thruster 12V | |
|---|---|---|
| Thrust | ||
| Rated thrust | 50 kgf | 60 kgf |
| Thrust at full supply voltage | 62 kgf | 73 kgf |
| Style | Tunnel | Tunnel |
| Propellers | Single | Single |
| Bow or stern use | No | Yes |
| Boat length | 26-36 ft | 30-39 ft |
| Electrical | ||
| Supply | 12 V | 12 V |
| Motor | 2.4 kW | 3.1 kW |
| Current draw | 370 A | 370 A |
| Continuous run | 3 min | 3 min |
| Build | ||
| Tunnel diameter | 140 mm | 185 mm |
| Weight | 15 kg (33.1 lb) | 15 kg (33.1 lb) |