Cometic C4317-075 MLS Cylinder Head Gasket for Nissan RB25DE/RB25DET 86mm Bore

The Cometic C4317-075 is a high-performance Multi-Layer Steel (MLS) cylinder head gasket engineered specifically for Nissan RB25DE and RB25DET engines. This precision gasket features a .051-inch (1.3mm) compressed thickness and is designed for an 86mm bore diameter, providing optimal sealing for both stock and modified applications.

Key Features:

• Multi-Layer Steel (MLS) construction for superior durability and sealing
• 86mm bore diameter designed for RB25 engine specifications
• .051-inch compressed thickness for precise compression control
• Embossed stainless steel layers with Viton rubber coating
• Handles extreme cylinder pressures in boosted applications
• Reusable design allows for multiple installations when properly maintained
• Ideal for turbo builds, performance applications, and engine rebuilds

Cometic MLS gaskets feature multiple layers of stainless steel with advanced coating technology that maintains seal integrity under extreme temperature and pressure conditions. The embossed design allows the gasket to conform to imperfect sealing surfaces while the Viton coating provides excellent resistance to oil, coolant, and combustion gases. This gasket is a popular choice for RB25DET turbo builds and performance rebuilds where reliable cylinder sealing is critical.