Cometic C4520-051 MLS Cylinder Head Gasket Peugeot XU10J4RS 86.5mm Bore 0.051" Thick

The Cometic C4520-051 is a precision-engineered Multi-Layer Steel (MLS) cylinder head gasket designed specifically for the Peugeot XU10J4RS 2.0L DOHC engine. With an 86.5mm bore and 0.051" (1.3mm) compressed thickness, this gasket features a 3-layer construction that delivers maximum sealing performance for high-output applications without requiring any additional sealants.

Key Features:

• Multi-layer stainless steel construction with 3 layers for superior strength and durability
• Outer layers embossed and coated with Viton, a fluoroelastomer rubber material heat resistant to 482°F (250°C)
• Uncoated stainless steel center layer provides structural integrity and rebound characteristics
• 86.5mm round bore diameter designed for Peugeot XU10J4RS engines
• 0.051" (1.3mm) compressed thickness for precise compression control
• No retorque required after installation
• Eliminates the need for additional sealants

Performance Benefits:

• Ideal for both aluminum-to-aluminum and aluminum-to-cast-iron block applications
• Withstands shearing forces between dissimilar materials
• Embossed design promotes even clamp load distribution across sealing surface
• Reduces bore distortion for improved seal integrity
• Superior resistance to corrosion, heat, and chemical exposure
• Excellent rebound characteristics maintain seal under thermal cycling

The Viton coating ensures reliable sealing across harsh sealing environments, varying load conditions, and different surface finishes. This gasket is engineered to provide championship-level reliability for street performance, racing applications, and engine rebuilds requiring precise compression control on Peugeot 306 GTI and other vehicles equipped with the XU10J4RS engine.