YAMAHA O-RING 93210-06ME6 REC93210-06ME6

Function and technical context

The O-ring is a circular sealing gasket that works in the cooling and lubrication systems of Yamaha marine engines. Its main function is to seal the connections between components, preventing leaks of coolant, seawater or oil that would compromise the operation of the propeller. It is a critical element in the structural integrity of the engine's hydraulic circuit, where vibrations and continuous temperature changes accelerate the aging of the elastomeric material, potentially causing salt water infiltrations that internally corrode the metal components.

When to replace this part?

O-rings show symptoms of degradation when drips are observed in the connection areas, loss of efficiency in the cooling circuit or changes in the color of the coolant due to contamination with water. It is recommended to inspect and replace preventively every two years or after 500 hours of navigation, especially in boats that operate in salt water where corrosion accelerates the deterioration of elastomers. Changing the gasket during scheduled maintenance prevents unforeseen breakdowns in navigation and protects the rest of the engine components from cross contamination.

Equivalent manufacturer part numbers