Cometic C14039-051 MLS Head Gasket .051" for Honda K20/K24 87.5mm

Vehicle Fitment

• 2002-2006 Acura RSX (K20A2/K20A3) (87.5 mm bore)
• 2002-2005 Honda Civic Si (K20A3/K20Z1) (87.5 mm bore)
• 2003-2006 Honda CR-V (K24A1) (87.5 mm bore)

Features

• Multi-layer steel (MLS) construction for high clamp load sealing
• Stainless steel outer layers with high-temperature chemical resistance
• PTFE topcoat improves cold seal and resists fret corrosion
• Compressed thickness: .051" for optimized piston-to-head clearance
• Designed for high-performance, turbo, and high-rev naturally aspirated applications
• No additional sealant required; install dry per manufacturer instructions
• Precision machined for 87.5 mm bore applications to ensure accurate fitment
• Manufactured to order for quality control and reliability

Specifications

• Part Number: C14039-051
• Bore size: 87.5 mm (3.444")
• Compressed thickness: .051" (≈1.295 mm)
• Material: 3-layer MLS (stainless steel outer layers + variable center)
• Engine family: Honda K20/K24 (K20A2, K20A3, K20Z1, K24A1)
• Designed for high output/performance use - deck height modifications assumed

Included Components

• 1x Cometic C14039-051 MLS head gasket

Product Description

The Cometic C14039-051 is a premium multi-layer steel (MLS) head gasket engineered specifically for Honda K-series engines (K20A2/K20A3/K20Z1/K24A1) with an 87.5 mm bore. Its compressed thickness of .051" is ideal for modified applications where lowered deck heights or increased piston protrusion exist, while maintaining reliable sealing under high clamp load.

Built for both street and track performance, the gasket's stainless steel construction with PTFE coating ensures durability, chemical resistance, and excellent sealing under high boost and high RPM conditions. It is suitable for naturally aspirated or turbocharged builds, delivering the strength and reliability required for serious performance engine applications.