Sierra 18-2946 Marine Cylinder Head Gasket for GM 3.0L Engines

The Sierra 18-2946 is a premium cylinder head gasket designed for GM 181 cubic inch (3.0L) marine engines. This essential engine component creates a reliable seal between the cylinder head and engine block, preventing compression loss and coolant leaks to ensure optimal engine performance.

Key Features:

• Designed specifically for GM 181 CID (3.0L) 4-cylinder marine engines
• Meets or exceeds original equipment specifications for reliable, leak-free performance
• Precision-engineered to provide proper compression sealing
• Manufactured to OEM quality standards for durability in marine environments

Cross-Reference Compatibility:

• MerCruiser Stern Drive: 27-52364, 27-810841, FI5000204
• OMC Stern Drive: 0914812, 3853336, 908611, 913274
• Volvo Penta: 3853336, 908611
• Chris-Craft: 16.50-00204
• GLM: 36150
• Mallory: 9-63700

This head gasket is an essential replacement component for rebuilding or repairing your marine engine's cylinder head assembly. Sierra Marine parts are trusted by boaters and marine technicians for quality aftermarket replacements.