PULLEY 67C-11537-01

Function and technical context

The 67C-11537-01 pulley is part of the power transmission system in outboard motors and marine propellers, responsible for directing and multiplying the mechanical forces transmitted by the timing belt to the engine accessories. This part works under constant tension in the belt circuit, coordinating the operation of the cooling water pump, the alternator and other critical auxiliary systems. A failure or wear on the pulley causes belt misalignment, which causes loss of cooling efficiency, poor battery charging and, in extreme cases, belt breakage with serious consequences for open water navigation.

When to replace this part?

The pulley requires replacement when visible wear is detected in its groove, abnormal vibrations in the engine block, friction of the belt against the side guards or metallic noise during cold starting. Although there is no fixed maintenance interval established by manufacturers for pulleys, it is recommended to inspect them annually and especially after prolonged periods of winter inactivity; Replacing it preventively in case of doubt avoids costly breakdowns at sea and ensures optimal functioning of all engine accessory systems.

Equivalent manufacturer part numbers