Cometic Gasket C4312-040 MLS Head Gasket for Honda K20/K24 88mm

Vehicle Fitment

• Honda/Acura with K20/K24 2.0L-2.4L DOHC engines (88 mm bore)
• 2002-2006 Acura RSX (K20A2/K20A3/K20Z1/K24A1)
• 2002-2005 Honda Civic Si & other compatible K-Series models
• 2003-2006 Honda CR-V (K24 variants)
• 2003-2011 Honda Element (K24 variants)

Features

• Premium Multi-Layer Steel (MLS) cylinder head gasket construction
• .040" compressed thickness for target sealing and compression
• 88 mm bore diameter specifically matched to Honda/Acura K-Series heads
• Multiple embossed stainless steel layers with Viton® coating
• Designed for aluminum head to aluminum block and aluminum head to cast iron block interfaces
• No additional sealants or re-torquing required once installed
• MLS design resists combustion blow-by and ensures long service life
• Ideal for performance or stock replacement applications

Specifications

• Brand: Cometic Gasket
• Part Number: C4312-040
• Gasket Type: MLS (Multi-Layer Steel)
• Compressed Thickness: .040"
• Bore Size: 88 mm (approx. 3.46")
• Material: Stainless steel with Viton coating
• Layers: Multiple embossed MLS layers
• Orientation: Non-specific (fits either cylinder head bank)

Included Components

• 1x Cometic MLS head gasket (C4312-040)

Product Description

The Cometic Gasket C4312-040 MLS head gasket is a premium multi-layer steel sealing solution engineered for Honda K-Series engines - specifically K20 and K24 2.0L and 2.4L DOHC applications with an 88 mm bore. Its robust MLS construction uses multiple embossed stainless steel layers with a Viton® rubber coating on both sides, which yields superior sealing performance in high-output engines and eliminates the need for additional sealants. Designed to handle the demanding combustion pressures and thermal conditions of modern performance engines, this head gasket helps prevent leaks and maintains optimal clamp load across the head-to-block interface.

This gasket is commonly used in performance and replacement builds for Honda and Acura vehicles such as the RSX, Civic Si, CR-V, and Element with compatible K20/K24 engines. With a compressed thickness of .040" and MLS design, the C4312-040 is suitable for both stock and lightly modified applications where superior sealing and durability are important. Its MLS construction also enables reliable head sealing on aluminum heads mated to aluminum or cast iron blocks, making it a versatile choice for engine rebuilds and performance upgrades.