These are the biggest thrusters sold on Amazon: three Sleipner SE units and the Vetus BOW9512D, with 185 and 250 mm tunnels. They cost about $2,500 to $4,010. The 12 V versions draw 530 A or more, so check the battery bank and cable run before you buy; the 24 V SE80 draws about half the current.
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.
Full ranking 4
- Sleipner SE130 Tunnel Thruster 12V#1 of 4Full review
For a 43 to 62 ft boat with a big battery bank. Most boats this size are better served by a 24 V version if the maker offers one.
Amazon $4,013.39$4,013.39130 kgf6.5 kW12 V - Sleipner SE80 Tunnel Thruster 24V#2 of 4Full review
The better SE80 when your boat has 24 V batteries: thinner cables and a lower price for the same thrust.
Amazon $2,500$2,50080 kgf4.4 kW24 V - Sleipner SE80 Tunnel Thruster 12V#3 of 4Full 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$2,70080 kgf4.4 kW12 V - Vetus BOW9512D Bow Thruster 95 kgf#4 of 4Full review
For a large boat on 12 V that needs more than 75 kgf. At this price compare the Sleipner SE80 and its 24 V version.
Amazon $3,734.35$3,734.3595 kgf6 kW12 V
