Lower unit / gearcase for boat engines

Explore our lower units (gearcases) for boat engines. The lower unit houses the propeller shaft, bevel gears, bearings and seals in the bottom part of the drive.

The role of the lower unit

The lower unit transfers torque from the driveshaft to the propeller, provides the correct gear ratio and operates fully immersed in water. It must offer excellent sealing and lubrication to withstand high loads.

A healthy gearcase is essential for reliable propulsion and trouble-free operation on the water.

When to replace a lower unit

Cracked housings, bent shafts, damaged gears, noisy bearings, repeated oil leaks or heavy corrosion are strong signals that a replacement lower unit should be considered.

A new or remanufactured gearcase restores correct alignment, clean gear mesh and proper sealing to secure your outboard or sterndrive.

Lower units selected by DAM Marine

As a specialist in marine drive systems, DAM Marine supplies lower units compatible with many VOLVO, SUZUKI, MERCURY, HONDA and MERCRUISER engines.

By choosing your boat lower unit from DAM Marine, you get marine-grade components designed for torque, immersion and saltwater use.

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HELICE ALUMINIUM 3P 8.5X8 RH 12 CANNELURES 5011-085-08

RÉF. DM_PR_5011-085-08 | TOHATSU

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