O-RING 93210-64ME7 REC93210-64ME7

Function and technical context

The 93210-64ME7 O-ring is an elastomeric sealing gasket that is part of the sealing system on Yamaha outboard motors. This piece acts as a hermetic barrier at critical points of the engine, preventing fluid leaks in cooling, lubrication or fuel supply circuits. The deterioration or hardening of this gasket compromises the tightness of the assembly, allowing leaks that can affect engine performance and cause damage to adjacent components. Its regular replacement is essential to maintain mechanical integrity and avoid operating problems while navigating.

When to replace this part?

O-rings degrade naturally due to exposure to temperature, pressure and chemical fluids, presenting symptoms such as localized drips, coolant or oil losses around the installation area, and occasionally occasional engine overheating. It is recommended that these gaskets be inspected and replaced during each seasonal maintenance or for any visible signs of wear, hardness or loss of elasticity. Preventive replacement during scheduled maintenance operations avoids emergency repairs during navigation and prolongs the useful life of the engine.

Equivalent manufacturer part numbers