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Cometic C4264-040 MLS Cylinder Head Gasket for Subaru Engines - EJ25/EJ257

(1998 Subaru Impreza; 1998 Subaru Forester; 1999 Subaru Legacy)

Part of: Cometic MLS Cylinder Head Gasket Bore Honda

Other options in this family: Cometic C4311-040 Cometic C4251-030 Cometic C4232-030 Cometic C4962-028 Cometic C5434-051

Manufacturer

Picture for manufacturer Cometic

Part Number

C4264-040
13 reviews
Sale Price

$46.08

In Stock (10+)

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Usually delivered within 2 days

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Product Details

The Cometic C4264-040 is a precision-engineered Multi-Layer Steel (MLS) cylinder head gasket designed specifically for Subaru EJ-series boxer engines. This gasket features a .040" (1.0mm) compressed thickness and 100mm bore diameter, making it ideal for street performance and mild boost applications.

Engine Compatibility:

  • Subaru EJ25D engines
  • EJ251 and EJ252 naturally aspirated 2.5L engines
  • EJ253 and EJ255 Version 1 turbocharged engines
  • 2004-2006 EJ257 turbocharged engines (WRX STI)

Key Features:

  • Multi-Layer Steel construction provides superior sealing and durability
  • 100mm bore diameter accommodates stock and mild overbore applications
  • .040" compressed thickness allows for slight deck resurfacing or compression ratio adjustments
  • Advanced MLS design handles thermal expansion and high cylinder pressures
  • Engineered with Cometic's proprietary coating for enhanced sealing performance

Cometic MLS head gaskets are constructed from multiple layers of stainless steel, providing exceptional resistance to head lift, combustion chamber pressures, and thermal cycling. The slightly thicker .040" profile makes this gasket perfect for engines that have had deck surfaces refinished or for tuners looking to fine-tune compression ratios in forced induction applications.

Products specifications

Fits

1998 Subaru Impreza; 1998 Subaru Forester; 1999 Subaru Legacy

Prop 65

WARNING: Cancer and Reproductive Harm - www.p65warnings.ca.gov

Material

Multi-layer Steel

Hello

Always easy dealing with them

This is my first time doing Autoplicty. My experience was over all great and I fast service. I will use them again for sure.

Didnt know it was shipping from the manufaturer and in route but showed up unexpected on a monday after a snowstorm so not bad

happy

Great tires and great price...I will certainly order again from Autoplicity

Perfect part and in perfect shape , thank you.

Quick, responsive help to my phone call prior to ordering online. Thanks!

Quick Website and great products.

I can't comment on a transaction that is not complete until I get the part I need.

Easy website to navigate.

easy to order and fast response on shipping.

Autoplicity, was very easy to use, very fast, and an enjoyable experience. I would recommend to my closest friends!!

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