Cometic C15665-050 Mercury Marine MLS Cylinder Head Gasket Bore - QC4v V8 116.5mm

The Cometic C15665-050 is a precision-engineered Multi-Layer Steel (MLS) cylinder head gasket designed specifically for Mercury Marine QC4v V8 engines. This high-performance gasket features a 116.5mm bore diameter and .050" (1.27mm) compressed thickness, providing reliable sealing under extreme marine operating conditions.

Key Features:

• Multi-Layer Steel (MLS) construction for superior durability and heat resistance
• 116.5mm bore diameter engineered for Mercury Marine QC4v V8 engines
• .050" compressed thickness for optimal compression and sealing
• Embossed stainless steel layers with elastomeric coating for enhanced conformability
• Resistant to extreme temperatures, corrosion, and marine environment conditions
• Maintains consistent cylinder pressure and prevents combustion gas leakage

Cometic's MLS gaskets utilize multiple layers of stainless steel with specialized coatings that allow the gasket to conform to sealing surfaces while maintaining structural integrity. This design provides maximum sealing performance in high-performance marine applications where heat cycling and vibration are constant challenges. Ideal for rebuilds, performance upgrades, or routine maintenance on Mercury Marine QC4v V8 powerheads.