PROPELLER SHAFT 6F6-45611-00

Function and technical context

The propeller shaft is the transmission component that directly connects the engine gearbox to the propeller, transmitting the rotational power necessary for the propulsion of the boat. It works integrated into the marine transmission system, supporting continuous torque and vibrations typical of navigation. Its structural integrity is critical: a worn, deformed or cracked shaft compromises the alignment of the propeller, generating runout that causes abnormal vibrations, loss of propulsive efficiency and risk of accelerated cavitation in the propeller.

When to replace this part?

Characteristic symptoms of shaft deterioration include abnormal vibrations in the stern area, metallic noises during acceleration, visible propeller misalignment, and premature wear of the propeller or stuffing box bearing. It is recommended to visually inspect the shaft during each seasonal maintenance, paying attention to deep rust, deformations or small cracks. Preventively replacing the shaft when these signs are detected avoids costly repairs in navigation and prolongs the useful life of the propeller and related systems.

Equivalent manufacturer part numbers