Sierra 18-2885 Head Gasket for Johnson Evinrude Outboard Motors

The Sierra 18-2885 is a precision-engineered head gasket designed specifically for vintage Johnson/Evinrude 5.5 horsepower outboard motors from 1957-1958. This high-quality aftermarket replacement gasket ensures a proper seal between the cylinder head and engine block, preventing coolant and compression leaks for reliable engine performance.

Key Features:

• Precision-machined to match OEM specifications for perfect head and block surface alignment
• Direct replacement for Johnson/Evinrude OEM part number 303438
• Manufactured from durable stock gasket material for long-lasting reliability
• Fits Johnson/Evinrude models: 5514, 5515, 5516, 5517, CD-14, and CD-15
• Backed by Sierra's quality warranty for defects in workmanship and materials

Sierra has supplied premium aftermarket marine parts for over 50 years, giving technicians and DIY mechanics the confidence that repairs will be done right the first time. This gasket is sold individually and is essential for proper engine rebuilds and head reconditioning on vintage Johnson/Evinrude outboards.