Evinrude / Johnson Head Gasket

Evinrude / Johnson Head Gasket 0318358 Hd Gasket- Cv4 is a genuine, factory original equipment (OEM) cylinder head gasket manufactured by Bombardier Recreational Products (BRP). It is specifically engineered to provide a reliable compression and water-jacket seal for Johnson and Evinrude Crossflow V4 (CV4) 2-stroke outboard marine engines, generally spanning model years from 1973 to 1998.

Interchange & Aftermarket Cross-References

If you prefer aftermarket options or need to match this part across other distributor catalogs, the 0318358 (or 318358) cross-references with the following part numbers:

• Sierra Marine: 18-2956
• GLM Marine: 33540 (heavy-duty composite design)
• Mallory Marine: 9-63828
• Mercury Marine: 878877
• Recmar: REC318358

Engine Compatibility

This gasket serves V4 Crossflow 2-Stroke gasoline outboards across a wide range of displacements:

• 85 HP: 1973–1980, 1991–1995
• 88 HP: 1987–1996
• 90 HP: 1981–1998
• 100 HP: 1979–1980, 1984–1997
• 110 HP: 1986–1990
• 115 HP: 1973–1999
• 135 HP: 1973–1976
• 140 HP: 1973–1984

Technical & Installation Notes

• Quantity Note: V4 engines feature two distinct cylinder heads. One gasket covers one side of the engine block. If you are doing a complete overhaul, you will typically need to purchase two head gaskets.
• Sealants: Standard service guidelines advise positioning this composite gasket completely dry. Do not use gasket sealants or RTV silicone unless specifically mandated by your factory service manual.
• Torque Sequence: Always clean the mating surfaces of the block and head meticulously. Ensure you follow the specific spiral or cross-over tightening sequence and torque limits prescribed by the manufacturer to prevent premature gasket failure or warping.