Cometic C4313-030 MLS Head Gasket .030in 89mm for 2002-2007 Honda/Acura K20/K24

Vehicle Fitment

• 2002-2007 Acura RSX (Base, Type-S), 2002-2005 Honda Civic Si, 2003-2007 Honda Accord (DX, LX, EX, SE, EX-L / Value / Special), 2002-2014 Honda CR-V (LX, EX, SE / EX-L), 2003-2011 Honda Element (DX, EX, LX) - with K20A1, K20A2, K20A3, K20Z1, K24A DOHC 2.0L / 2.4L inline-4 engines

Fitment Notes

• Does **not** fit newer K-series engines such as K20C or other variants whose block/head/cooling port geometry differ from K20A/K24A unless those dimensions are verified identical
• Requires properly flat, clean head and block mating surfaces; OEM/Cometic surface finish specs should be met for reliable seal
• 2025 fitment unconfirmed; confirmed through model years up to 2014 for some CR-V/Element trims, through 2007 for most RSX/Civic/Accord trims

Features

• Multi-Layer Steel (MLS) construction for excellent sealing, durability, and reliability under high pressure and temperature cycles :contentReference[oaicite:0]{index=0}
• Outer layers embossed stainless steel coated with Viton on both faces to resist high heat and chemical exposure (~250 °C / 482 °F) :contentReference[oaicite:1]{index=1}
• Bore size of 89.00 mm to match certain oversize/stretched/displacement builds in the K20/K24 platform :contentReference[oaicite:2]{index=2}
• Compressed thickness: .030 in (≈ 0.762 mm) for tight deck clearance while still providing dependable sealing :contentReference[oaicite:3]{index=3}
• No sealants required; designed for dry sealing provided proper finish and torque are achieved :contentReference[oaicite:4]{index=4}
• Suitable for aluminum head-to-aluminum block as well as aluminum head-to-cast iron block applications; engineered to resist shearing forces between dissimilar metals :contentReference[oaicite:5]{index=5}
• Designed to maintain clamp load and minimize bore distortion under thermal cycling from performance usage :contentReference[oaicite:6]{index=6}
• Includes central uncoated shim stainless steel layer to aid in precise thickness control and durability :contentReference[oaicite:7]{index=7}

Specifications

• Bore Diameter: 89.00 mm :contentReference[oaicite:8]{index=8}
• Compressed Operating Thickness: .030 in (≈ 0.762 mm) :contentReference[oaicite:9]{index=9}
• Material: Stainless steel MLS, with Viton-coated outer layers; central shim/uncoated stainless layer :contentReference[oaicite:10]{index=10}
• Engine Compatibility: K20A1, K20A2, K20A3, K20Z1, K24A - DOHC 2.0L / 2.4L inline-4 :contentReference[oaicite:11]{index=11}
• Position: Head gasket (head-to-block interface for all cylinders) :contentReference[oaicite:12]{index=12}
• Layer Count: multiple steel layers (exact layer count per Cometic spec; outer embossing present) :contentReference[oaicite:13]{index=13}
• Installation Requirements: flat, clean surfaces; proper torque; no retorquing needed afterward per manufacturer's MLS design :contentReference[oaicite:14]{index=14}
• Fitment confirmed through at least 2014 for Element/CR-V trims, through 2007 for RSX/Civic/Accord - 2025 unconfirmed :contentReference[oaicite:15]{index=15}

Included Components

• 1x Cometic MLS Head Gasket C4313-030

Product Description

The Cometic C4313-030 is a high-performance MLS (Multi-Layer Steel) head gasket designed for Honda/Acura K-series DOHC 2.0L / 2.4L engines. With an oversize 89.00 mm bore, and compressed thickness of .030 inches (~0.762 mm), it is targeted toward builds requiring a larger bore than OEM or those utilizing block machining, porting, or mild performance upgrades. The gasket's outer layers are embossed stainless steel and Viton coated both sides, allowing it to withstand high heat, chemical exposure, and rigorous sealing demands. A central uncoated shim stainless steel layer ensures rigidity and precise thickness, helping maintain clamp load and seal integrity under harsh conditions.

Fitment is confirmed for 2002-2007 models of Acura RSX (Base, Type-S), Honda Civic Si, Accord (DX, LX, EX, SE, EX-L/Value/Special), CR-V, Element trims that use the K20A1, K20A2, K20A3, K20Z1, or K24A engines. If your engine is a newer variant (e.g. K20C turbo or other "C-series" blocks) or has non-OEM block/head geometry, compatibility must be verified by matching bore, head bolt pattern, and gasket surface design. Installation demands properly flat, clean mating surfaces and OEM/Cometic torque specs. Fitment confirmed through model years up to 2014 for some CR-V/Element trims; 2025 unconfirmed.