Cometic C4264-045 .045" MLS Head Gasket 100mm for Subaru EJ25 DOHC 16V

Vehicle Fitment

• Subaru EJ25 Series Engines (EJ25D, EJ251, EJ252, EJ253/EJ255 Version 1, 2004-2006 EJ257), 2.5L DOHC 16V
• 1998-2006 Impreza, WRX/STi, Forester, and Legacy models equipped with these engine codes

Fitment Notes

• Spans multiple EJ25 sub-variants; confirm exact engine code before ordering, as gasket thickness requirements vary by build and compression target

Features

• 3-to-5-layer stainless steel MLS construction for strength and corrosion resistance
• Outer layers embossed and Viton-coated for sealing across harsh load conditions
• Viton coating resists heat up to 482°F (250°C)
• No re-torque or sealants required after installation
• Suited for both aluminum-to-cast-iron and aluminum-to-aluminum head/block combinations

Specifications

• Bore: 100mm
• Compressed Thickness: .045"
• Material: Multi-Layer Steel (MLS)
• Configuration: DOHC 16V

Included Components

• 1x Cylinder Head Gasket

Product Description

The Cometic C4264-045 is a 100mm MLS head gasket built for Subaru's EJ25 series DOHC engines. Its multi-layer steel construction and Viton-coated outer layers deliver a consistent, repeatable seal without re-torquing, making it a common choice for engine rebuilds and turbocharged performance builds alike.

Covers a wide range of EJ25-powered Subaru platforms, including Impreza, WRX/STi, Forester, and Legacy. At .045" thick, it's a popular option for builds running lower compression ratios or thicker-spacer applications. Always match this gasket to your specific EJ25 engine code before ordering.