Sierra 18-3802 Cylinder Head Gasket for Johnson Evinrude Outboard Motors

The Sierra 18-3802 is a premium-quality cylinder head gasket engineered specifically for Johnson and Evinrude outboard motors ranging from 40 HP to 60 HP. This critical seal component ensures proper compression between the cylinder head and engine block, preventing coolant and combustion gas leaks while maintaining optimal engine performance.

Key Features:

• Precision-engineered to meet or exceed OEM specifications
• Compatible with Johnson/Evinrude 40 HP, 45 HP, 48 HP, 50 HP, 55 HP, and 60 HP outboard engines
• Manufactured by Sierra, a trusted name in marine engine parts for over 50 years
• Direct replacement for OEM part numbers ensuring proper fit and function
• Designed for reliable performance in marine environments

OEM Cross-Reference Numbers:

• Johnson/Evinrude: 335359, 327795, 320658
• GLM: 34250
• Mallory: 9-63833

Sierra has earned the confidence of marine engine manufacturers and boat builders worldwide by producing aftermarket parts that restore function to OEM specifications. Technicians and boaters can trust that this head gasket will fit correctly the first time and deliver long-lasting, dependable performance for their outboard motor.