4 Cylinder Exhaust Manifold to Head Gasket | Sierra 18-2912-1
4 Cylinder Exhaust Manifold to Head Gasket | Sierra 18-2912-1
Combination intake & exhaust manifold gasket fits various early model GM 3.0L 4 cylinder marine engines.
- Exhaust manifold gasket
- For Mercruiser and OMC GM 3.0L 181 cu. in. marine engines
- Fits Mercruiser 140 model engines
- Will not work with all 3.0L engines - refer to engine model and serial for correct gasket
- Intake ports have two square ports and two ports with the corners blocked
- Exhaust ports are all square
- Replaces Mercury 27-53354
- Replaces OMC 908079
- Replaces Mallory 9-61417
- Replaces Sierra 18-1203, 18-2912
