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Cometic C4574-040 MLS Cylinder Head Gasket for Subaru - EJ255/EJ257

(2004-2014 Subaru Impreza; 2005-2009 Subaru Outback; 2004-2013 Subaru Forester; 2013-2014 Subaru WRX GS/Limited; 2005-2012 Subaru Legacy + 3 more models)

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

C4574-040
17 reviews
Sale Price

$46.08

In Stock (7)

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Usually delivered within 2 days

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Product Details

The Cometic C4574-040 is a high-performance Multi-Layer Steel (MLS) cylinder head gasket engineered specifically for Subaru EJ255 Version 2 and 2007-2018 EJ257 engines. This precision-manufactured gasket features a .040" (1.02mm) compressed thickness and 101mm bore diameter, making it ideal for built engines requiring superior sealing and durability.

Key Specifications:

  • Bore diameter: 101mm (3.976")
  • Compressed thickness: .040" (1.02mm)
  • Multi-Layer Steel (MLS) construction
  • Compatible with Subaru EJ255 Version 2 engines
  • Compatible with 2007-2018 Subaru EJ257 engines

Advanced MLS Technology:

  • Multiple layers of stainless steel provide superior sealing and durability
  • Excellent resistance to extreme temperatures and combustion pressures
  • Compensates for thermal expansion and cylinder head movement
  • Superior torque retention compared to composite gaskets
  • Ideal for turbocharged and high-performance applications

Cometic gaskets are manufactured in the USA using state-of-the-art laser cutting technology and premium materials. The MLS design is the preferred choice for performance builds, forced induction applications, and engines producing elevated cylinder pressures. This gasket is designed to maintain a reliable seal even under extreme operating conditions.

Installation Note: Proper surface preparation is critical for MLS gaskets. Both the block and cylinder head surfaces should be smooth with an RA finish of 50-60 microinches or better for optimal sealing performance.

Products specifications

Fits

2004-2014 Subaru Impreza; 2005-2009 Subaru Outback; 2004-2013 Subaru Forester; 2013-2014 Subaru WRX GS/Limited; 2005-2012 Subaru Legacy; 2013-2014 Subaru WRX STI GS; 2004-2006 Subaru Baja; 2006 Saab 9-2X

Prop 65

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

Material

Multi-layer Steel

So far so good.

Good to deal with fast shipping

Good price.

So far, so good. Prices are good, service is good. No complaints. Will continue to use.

Fast easy ordering, delivery quick and well protected. Thank you! See ya soon Nick in NV

I was under the impression by 24hr shipping that i would get it the next day. But, turns out that it "leaves" with in 24 hrs and can take 3-10 days to arrive. It's a little misleading, but I did receive it in 3 days, so I'm "ok" with the delivery time (that is why i gave it 4 stars). 10 days would have been an issue.

Quick and simple

super easy! thanks!

Very good

Easy store to navigate through and had all the info.

Thanks

My first order and I must say, very impressive! Awesome prices and super-fast shipping direct from the manufacturer. Couldn't ask for more! I will return.

HOPEFULLY FOUND WHAT I WAS LOOKING FOR! THANKS RON

I spoke with the owner, awesome dude, told me he gets prices NOBODY else can! I just got notification that my items are shipping, so, I cannot review the actual product yet....but as far as pricing goes and communications....excellent! You gotta check this place out!! Jas. (&thanks for the extra incentives!!)

SMOOTH

I was unable to check out with Paypal

Great Price!

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