YAMAHA EXHAUST GASKET 67F-41134-A0

Function and technical context

The exhaust gasket is a critical component of the exhaust system on Yamaha outboard engines. This piece is located between the exhaust manifold and the outlet pipe, hermetically sealing the joint to prevent combustion gas leaks and seawater entry. Its correct operation is essential to maintain the tightness of the system, prevent internal corrosion of the engine and guarantee optimal propulsion performance. Poor sealing would compromise the structural integrity of the exhaust system and could allow salt water to infiltrate into the engine's internal chambers.

When to replace this part?

Exhaust gaskets show progressive wear due to thermal cycles, marine corrosion and continuous engine vibration. Typical symptoms include water leaks or smoke around the exhaust connection, persistent moisture in the manifold area, and in advanced cases, water entering the crankcase. It is recommended to preventively inspect and replace this gasket during each seasonal maintenance or at the first signs of a leak, thus avoiding costly repairs and secondary damage to internal engine components that can occur while boating.

Equivalent manufacturer part numbers