REVERSE GEAR PIN 647-45570-01

Function and technical context

The reverse gear is an essential component of the transmission system in outboard motors, responsible for reversing the direction of rotation of the propeller when reverse gear is activated. It is part of the marine gearbox, where it meshes with the drive pinion from the crankshaft to modify the direction of thrust without altering the operation of the engine. This element is critical for the maneuverability and safety of the vessel, since any wear or tear prevents the correct reversal of the propulsive movement, severely limiting the ability to maneuver in port and in emergency situations.

When to replace this part?

Typical symptoms of deterioration include difficulty engaging reverse gear, metallic noises or creaking noises in the gearbox, or complete lack of effectiveness in reverse gear despite activating the control. It is recommended to inspect the condition of the gears during each seasonal maintenance check, especially if the boat is frequently used for docking or mooring maneuvers. Replacing this part preventively when the first signs of wear are detected prevents unexpected breakdowns in critical situations and prolongs the life of the entire marine gearbox.

Compatible engines

Equivalent manufacturer part numbers