What is the compressed thickness of this head gasket?

The compressed operating thickness of this Multi-Layer Steel head gasket is 0.036 inches. The uncompressed thickness is 0.056 inches.

Do I need to use any sealant with this gasket?

No, Cometic MLS head gaskets are designed to provide maximum sealing performance on their own and do not require additional sealants.

What is Viton and why is it used on this gasket?

Viton is a heat-resistant rubber-based material that can withstand high temperatures, up to 482°F (250°C). It's used on the outer layers of this gasket to ensure reliable sealing in demanding engine environments.

Specifications

Brand: Cometic Gasket
Part #: C4493-056
UPC: 191070113391

Cometic Peugeot TU5 J4 - 79mm Bore .056 inch MLS Head Gasket

Name: Cometic Peugeot TU5 J4 - 79mm Bore .056 inch MLS Head Gasket
Brand: Cometic Gasket
SKU: cometic-gasket-cometic-peugeot-tu5-j4-79mm-bore-056-inch-mls-head-gasket-t14-514942
Price: 148.08 USD
Availability: BackOrder

$148.08

On Backorder

Order now to reserve yours — we'll ship as soon as stock arrives. Full refund if we're unable to fulfill.

Fits 2003-2014 Subaru Impreza. Cometic's Multi-Layer Steel head gasket offers reliable sealing for high-output engines.

Key Features

Fits 2003-2014 Subaru Impreza, 2004-2006 Subaru Baja, 2004-2005 and 2007-2013 Subaru Forester, 2003-2009 Subaru Legacy, and 2005-2009 Subaru Outback.
Multi-Layer Steel (MLS) construction offers increased strength and resistance to corrosion.
Embossed outer layers are coated with Viton, a heat-resistant rubber material rated up to 482°F (250°C).
Designed for high-output engines and requires no additional sealants.
Suitable for mating aluminum heads to aluminum blocks or cast iron blocks.
Features a 79mm bore and a compressed operating thickness of 0.036 inches (.056 inch uncompressed).

⚠️ 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

Cometic Gasket is known for making well-built sealing components, and this Multi-Layer Steel (MLS) head gasket is a prime example. If you're rebuilding the top end of your 2003-2014 Subaru Impreza, this gasket is designed to handle the job. It's built with multiple layers of stainless steel, which gives it strength and resistance to corrosion, and the outer layers are coated with Viton, a heat-resistant rubber material that can handle tough sealing environments.

This MLS design means you don't need to use any extra sealants, and it works well whether you're mating aluminum heads to an aluminum block or to cast iron. The center layer is stainless steel and can be varied to achieve different thicknesses, like the 0.056 inch compressed thickness on this particular gasket. The Viton coating on the outer layers is heat resistant up to 482 degrees Fahrenheit, making it suitable for engines that run hot.