Cometic C5861-045 MLS Cylinder Head Gasket for Subaru Bore - EZ30D 90mm

The Cometic C5861-045 is a precision-engineered Multi-Layer Steel (MLS) cylinder head gasket designed specifically for the Subaru EZ30D Mark I horizontally-opposed six-cylinder engine. This left-hand side (LHS) gasket features a 90mm bore diameter and .045" compressed thickness, providing exceptional sealing performance for both stock and modified applications.

Key Features:

• Multi-Layer Steel (MLS) construction for superior strength and durability
• 90mm bore diameter engineered for EZ30D engine specifications
• .045" compressed thickness (1.14mm) for precise compression control
• Left-hand side (LHS) application—order both LHS and RHS for complete engine rebuild
• Exceeds OEM sealing performance with improved combustion pressure containment
• Advanced coating technology prevents corrosion and micro-leaks
• Ideal for performance builds, turbo applications, and OEM replacement

Cometic MLS gaskets utilize multiple layers of stainless steel with specialized coatings to create a gasket that rebounds and conforms to imperfections in the sealing surface. This design maintains seal integrity under extreme thermal cycling and high cylinder pressures. Professional installation with proper surface preparation and torque specifications is recommended for optimal performance.