The Cometic MLS C4228 cylinder head gasket is designed for XU10J4, XU9J4, XU10J2, and XU9J4Z engines, specifically for PEUGEOT 309/405 MI16 applications with a 88 mm bore. It has a bore of 88 mm. This reinforced cylinder head gasket ensures a tight seal between the engine block and the cylinder head. Its design helps maintain a reliable and long-lasting seal on both stock and modified engines, provided that mounting requirements and engine specifications are followed.
MLS (Multi-Layer Steel) Design
MLS (Multi-Layer Steel) technology uses multiple layers of steel, with stamped outer layers and a sealing coating adapted to engine temperatures. This architecture promotes even distribution of clamping pressure and helps ensure a tight seal in the combustion chambers, oil passages, and cooling systems.
Technical Specifications
- Manufacturer: Cometic
- Range Part Number: C4228
- Technology: MLS
- Bore: 88 mm
- Specified material: Stainless steel
- Product type: Cylinder head gasket
Engine models compatible with the Cometic C4228 gasket for the head
The Cometic C4228 head gasket, with a bore of 88 mm, is listed for the following engines:
Compatibility must be verified based on the exact engine code, the actual bore, and the specifications of the cylinder head and engine block.
Available thicknesses for the Cometic C4228 cylinder head gasket
The thicknesses listed below correspond to the variants found in the supplier’s data. Their availability and exact correspondence with the manufacturer must be verified for the selected part number. The choice of thickness depends on the engine’s geometry and the desired compression ratio.
- Cometic C4228-018 gasket: thickness 0.018", or 0.46 mm
- Cometic C4228-036 gasket: thickness 0.036", or 0.91 mm
- Cometic C4228-040 gasket: thickness 0.040", or 1.02 mm
- Cometic C4228-045 gasket: thickness 0.045", or 1.14 mm
- Cometic C4228-051 gasket: thickness 0.051", or 1.3 mm
- Cometic C4228-056 gasket: thickness 0.056", or 1.42 mm
- Cometic C4228-060 gasket: thickness 0.060", or 1.52 mm
- Cometic C4228-070 gasket: thickness 0.070", or 1.78 mm
- Cometic C4228-080 gasket: thickness 0.080", or 2.03 mm
- Cometic C4228-086 gasket: thickness 0.086", or 2.18 mm
- Cometic C4228-098 gasket: thickness 0.098", or 2.49 mm
- Cometic gasket C4228-120: thickness 0.120", or 3.05 mm
Mounting recommendation: Check the flatness and surface condition of the cylinder block and cylinder head; follow the tightening procedure, sequence, and torque specifications for the engine, as well as the gasket manufacturer’s recommendations.
Cometic has established itself as a leading manufacturer in the field of high-performance engine gaskets. Its experience in motorsports, particularly in NASCAR and drag racing, has contributed to its international reputation. Cometic gaskets are used in engine tuning and motorsports projects where sealing performance and mechanical reliability are essential.
