Cometic C4227-140 MLS Cylinder Head Gasket Bore Peugeot - 86.5mm XU9J4/XU10J2/XU10J4

The Cometic C4227-140 is a high-performance Multi-Layer Steel (MLS) cylinder head gasket engineered specifically for Peugeot XU9J4, XU9J4Z, XU10J2, and XU10J4 engines. Featuring an 86.5mm bore diameter and .140-inch (3.56mm) compressed thickness, this gasket provides exceptional sealing performance for both stock and modified applications.

Key Features:

• Multi-Layer Steel (MLS) construction for superior strength and durability
• 86.5mm bore diameter designed for Peugeot XU-series engines
• .140-inch compressed gasket thickness for precise compression control
• Advanced sealing technology withstands extreme cylinder pressures and temperatures
• Ideal for turbocharged, supercharged, and high-compression naturally aspirated builds
• Embossed stainless steel layers with Viton rubber coating ensure optimal sealing

Cometic MLS head gaskets are the preferred choice for performance engine builders worldwide. The multiple layers of stainless steel create a springboard effect that adapts to thermal expansion and contraction, maintaining consistent clamping pressure throughout the engine's operating range. This design eliminates the need for sealants and provides a leak-free seal even under the most demanding conditions.