REVERSE GEAR PIN 61N-45571-00

Function and technical context

The reverse sprocket is a critical gear in the transmission of Yamaha outboard motors, responsible for reversing the direction of rotation of the propeller to enable reverse navigation. Located in the lower gearbox of the engine, this component works integrated with the clutch system, receiving and transmitting power from the crankshaft to the axle line. Its correct operation is essential for the maneuverability of the vessel and constitutes a critical element in terms of nautical safety, being essential in docking, anchoring and emergency control maneuvers. Any deterioration of the pinion directly compromises the ability to reverse gear, severely limiting control and navigation options in port.

When to replace this part?

Symptoms of wear on the reverse sprocket include abnormal metallic noises during reverse shifting, difficulty or resistance when engaging reverse gear, and complete or partial loss of engine reversing ability. Although there is no fixed predetermined maintenance interval, it is advisable to inspect the condition of the drive gears during annual seasonal maintenance, with special attention to vessels that are used intensively or that operate in silty waters. Carrying out a preventive replacement avoids sudden breakdowns in compromised navigation conditions and ensures the permanent availability of full control of the vessel.

Compatible Yamaha engines

Equivalent manufacturer part numbers