Sierra Marine Cylinder Head Gasket for Yamaha Outboard

The Sierra Marine Cylinder Head Gasket for Yamaha outboard engines is a replacement head gasket, also called a cylinder head gasket or head seal. It seals the joint between the cylinder head and the engine block. That seal keeps combustion pressure in and keeps coolant and oil in their passages. Sierra is a well-known maker of marine replacement parts, and its gaskets are intended for outboard power head service and rebuilds.

Key Features:

• Replacement cylinder head gasket made for Yamaha outboard engines
• Seals combustion pressure between the cylinder head and block
• Helps prevent coolant and oil leaks at the head joint
• Built for the heat, pressure, and moisture of marine use
• Suited to power head rebuilds, overhauls, and routine head service

Replace the head gasket whenever the cylinder head is removed. Clean the mating surfaces first, then tighten the head bolts to the engine manufacturer's specified torque sequence and values. Choose the child item that matches your engine's application.