Cometic C4589-052 MLS Cylinder Head Gasket Bore Thick - 89.5mm 052

The Cometic C4589-052 is a premium Multi-Layer Steel (MLS) cylinder head gasket engineered for Subaru FA20D and Toyota 4U-GSE engines. This left-hand side (LHS) gasket features a precision 89.5mm bore diameter and .052" (1.32mm) compressed thickness, making it ideal for high-performance applications and engine builds requiring enhanced sealing capability.

Key Features:

• Multi-Layer Steel (MLS) construction with multiple layers of stainless steel for superior strength and durability
• 89.5mm bore diameter designed specifically for FA20D and 4U-GSE engines
• .052" compressed thickness provides excellent sealing under high cylinder pressures
• Viton rubber gasket coating ensures optimal sealing and resistance to chemicals and extreme temperatures
• Accommodates increased boost levels and higher compression ratios common in performance applications
• Precision embossed design conforms to cylinder head and block surfaces for consistent clamping pressure

Cometic's MLX (Multi-Layer Xtreme) gaskets are trusted by professional engine builders and performance enthusiasts worldwide. The advanced material technology and manufacturing process ensure reliable sealing in demanding motorsports and street performance environments. This gasket is compatible with both stock and modified engine configurations on Subaru BRZ, Scion FR-S, Toyota 86, and related platforms using the FA20D boxer engine, as well as Toyota applications using the 4U-GSE engine.