Description

4 Cylinder Exhaust Manifold to Head Gasket | Sierra Exhaust 18-1204-1

Combination intake & exhaust manifold gasket fits GM 3.0L 4 cylinder marine engines with non-Vortec cylinder heads.

• Exhaust manifold gasket
• For GM 2.5L and 3.0L engines from approximately 1987 to 1990 with non-Vortec cylinder heads
• Will not work with all 3.0L engines – refer to engine model and serial for correct gasket
• Intake and exhaust ports are not square
• Replaces Mercury 27-96429
• Replaces OMC 912164
• Replaces Mallory 9-61419
• Replaces Sierra 18-1204