Sierra 18-1277 Head Gasket Set for MerCruiser 4 Cyl 3.7L Marine Engines

The Sierra 18-1277 Head Gasket Set is a comprehensive gasket kit designed specifically for MerCruiser 4-cylinder 3.7L marine engines. This complete gasket set includes all essential sealing components needed for head service and repair, ensuring proper sealing and engine performance.

Complete Gasket Set Includes:

• Head gasket for reliable cylinder head sealing
• Intake manifold gasket for proper air/fuel delivery
• Carburetor base gasket (Quadrajet style)
• Valve cover gasket for oil containment
• Exhaust manifold gasket for exhaust sealing
• Eight (8) valve stem seals for oil control

Key Features:

• Manufactured to meet or exceed OEM specifications
• Designed for MerCruiser 170, 180, 190, 470, 485, and 488 engines (3.7L 4-cylinder applications)
• Made from high-quality materials for durability and chemical resistance
• Ensures proper fit and reliable sealing performance

Sierra Marine gasket sets are engineered to restore lost performance and keep your marine engine running efficiently. This kit provides all the necessary gaskets for cylinder head removal and reinstallation in one convenient package.