What does MLS construction mean for this head gasket?

MLS stands for Multi-Layer Steel. This construction uses three to five layers of stainless steel, which provides increased strength, better rebound under pressure, and resistance to corrosion compared to older gasket types.

What is the purpose of the Viton coating on the gasket?

The Viton rubber coating on the outer layers helps the gasket meet the demands of harsh sealing environments and varying load conditions. It's heat resistant up to 482°F (250°C) and designed to work well with different surface finishes.

What specific Subaru engines does this gasket fit?

This gasket is designed for the EJ255 and EJ257 turbocharged engines. It has a 101mm bore and a .040 inch thickness, which are key specifications for these particular Subaru powerplants.

Specifications

Brand: Cometic Gasket
Part #: C4587-040
UPC: 191070033767

Cometic 03-11 Subaru EJ255 / 04-10 EJ257 Turbo 101mm Bore .040in MLS Head Gasket

Name: Cometic 03-11 Subaru EJ255 / 04-10 EJ257 Turbo 101mm Bore .040in MLS Head Gasket
Brand: Cometic Gasket
SKU: cometic-gasket-cometic-03-11-subaru-ej255-04-10-ej257-turbo-101mm-bore-040in-mls-t14-4386362
Price: 78.46 USD
Availability: InStock

$78.46

In Stock

Fits 2003-2014 Subaru Impreza. This Cometic MLS head gasket features a 101mm bore and .040in thickness for reliable sealing.

Key Features

Fits 2003-2014 Subaru Impreza, 2004-2006 Subaru Baja, 2004-2005 and 2007-2013 Subaru Forester, 2003-2012 Subaru Legacy, and 2005-2009 Subaru Outback.
Multi-Layer Steel (MLS) construction offers increased strength and rebound capability.
Stainless steel material resists corrosion for long-term reliability.
Features a 101mm bore size, suitable for specific EJ255 and EJ257 engine applications.
Has a thickness of .040 inches, important for proper compression and sealing.
Outer layers are embossed and coated with heat-resistant Viton rubber (up to 482°F/250°C).

⚠️ CA WARNING: This product can expose you to chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm. Learn more

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About this part

Product Details

Built with three to five layers of stainless steel, this Cometic Multi-Layer Steel (MLS) head gasket offers increased strength and resistance to corrosion. The stainless steel construction also helps the gasket rebound effectively under pressure. This gasket is specifically designed with a 101mm bore and a .040 inch thickness, making it suitable for the EJ255 and EJ257 turbocharged engines found in various Subaru models.

The outer layers of this gasket are embossed and coated with Viton rubber on both sides. This Viton coating is heat resistant up to 482°F (250°C) and is formulated to handle tough sealing environments, varying load conditions, and different surface finishes. This makes it a solid option for rebuilding or replacing head gaskets on your Subaru.