My Account
My Garage
Shopping Cart
MY GARAGE Select Vehicle
MY GARAGE

Cometic C4578-032 MLS Cylinder Head Gasket for Subaru Engines Bore - EJ25 101mm

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

Manufacturer

Part Number

C4578-032
Sale Price

$80.22

2 left at this price

delivery box

Usually delivered within 2 days

free shipping

FREE SHIPPING

Authorize Seller Badge
No Hassle Returns

No Hassle Returns

Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

The Cometic C4578-032 is a multi-layer steel (MLS) cylinder head gasket engineered for Subaru EJ25 series engines. Featuring a compressed thickness of .032 inches and a 101mm bore diameter, this gasket provides exceptional sealing performance for high-performance and stock applications.

Key Features:

  • Multi-Layer Steel (MLS) construction for superior sealing and durability
  • 0.032-inch compressed thickness optimized for performance builds
  • 101mm bore diameter precision-engineered for EJ25 engines
  • Compatible with EJ25D, EJ251, EJ252, EJ253, EJ255 Version 1, and 2004-2006 EJ257 engines
  • Advanced coating technology prevents corrosion and improves combustion sealing
  • Embossed stainless steel layers with elastomeric coating conform to irregular surfaces

Cometic's MLS head gaskets are the choice of professional engine builders and enthusiasts who demand reliable performance. The multi-layer design allows the gasket to adapt to head and block expansion during thermal cycling, while maintaining consistent torque loading. This gasket is ideal for turbocharged applications, engine rebuilds, and performance upgrades where precise compression control is critical.

Products specifications

Fits

1998 Subaru Impreza; 1998 Subaru Forester; 1999 Subaru Legacy

Prop 65

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

Material

MLX

Easy order process

Order received as specified.

Great product for a great price

Fast shipping

good

It arrived and I have installed it. Now we will see if it solves my problem. Very prompt delivery.

Fast and easy. Thank you so much.

5 Star.

Incredibly easy and hassle-free

Great service! I will def order more from these guys!

Great to order via Amazon; don't need to remember another account and password.

Great price hopefully right product

Was quick and easy. Hope to get product quickly!

I pieced a roof rack setup from all over the internet, and Autoplicity consistently beat every other vendor on price and shipping, even most auctions on eBay!<br>I found the site confusing when searching for items directly (why was the "Roof Racks & Cargo Carriers" dropdown empty, when Google showed their ads for tons of these products?). Since they always came up at the top of a Google Shopping search for products, using their website's internal navigation wasn't ever necessary.<br>Customer service guy was a little snippy, but I could have just been interrupting his lunch.

check out was easy

Identity Theft Protection Purchase Guarantee Lowest Price Guarantee

prices are good. After I paid it took them 5 days to ship the order. Communication is not very good with autoplicity.

easy so far

best pricing for the item plus no tax and free ground shipping.better deal of all the online retailers

Share icon
Return Policy
Returns are easy at THMotorsports

Not happy with a purchase? No problem. We've made returning items as easy as possible. And most purchases can be returned for free for 30 days. Learn more about our Returns Policy