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