Bow thruster 4.2 tunnel set

The Standard Bow Thruster 4.2 from Rim Drive Technology is a powerful electric bow thruster with 24V operating voltage and 4.2 kW output. Despite its compact design, it delivers a very high static thrust of 44 kgf and is ideal for larger boats as well as demanding maritime applications.

Thanks to the IP68 protection class, the motor is completely waterproof and suitable for use in saltwater. The integrated motor control ensures reliable and efficient regulation of the drive.

The Bow Thruster Tunnel Set from Rim Drive Technology is among the quietest systems in its class. The optimized tunnel design ensures particularly efficient water flow, which significantly improves the boat's maneuverability – especially in wind or strong currents.

This electric bow thruster system can also be flexibly used as a stern thruster and is designed for continuous operation. Thanks to the rim-drive technology, it operates without wear-prone components such as shaft seals or traditional gaskets.
This ensures a reliable, low-maintenance, and especially quiet propulsion system, making it ideal for demanding maritime applications.

A bow thruster – in German, Bugstrahlruder – is a transverse thruster located at the front of a boat. It generates lateral thrust and allows the bow (the front of the boat) to be moved precisely to the left or right. This is especially helpful when:


✔ Docking in the harbor
✔ Casting off in crosswinds
✔ Maneuvering in tight marinas
✔ Positioning in currents

The bow thrusters from Rim Drive Technology are suitable for boats from 2 to 20 meters and are available in power levels from 0.5 to 75 kW. Thanks to their modular design, they can be easily expanded or converted for other purposes. This way, you remain flexible in the future as well.

All our electric bow thrusters are saltwater-resistant, compact, and lightweight. They contain neither oil nor seals, which prevents leaks and significantly reduces maintenance requirements.
The unique rim-drive technology operates with only a single rotating component. This minimizes the risk of failure while maximizing performance.

Our motors offer proportional control and instant acceleration for precise and controlled maneuvers.

Also as a stern thruster A major advantage of our electric bow motors is their versatility. You can install them not only at the bow of the boat, but also at the stern as a stern thruster.


This makes maneuvering easier, especially when docking or navigating in tight areas. This way, you maintain full control over your vehicle in every situation.