What is the compressed thickness of this head gasket?

This Cometic MLS head gasket has a compressed operating thickness of 0.036 inches. The initial thickness before compression is 0.027 inches.

Does this head gasket require any sealant?

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

What is the benefit of the Viton coating on the outer layers?

The Viton coating on the outer layers is a heat-resistant rubber material that helps meet the demands of harsh sealing environments, various load conditions, and different surface finishes, ensuring a reliable seal.

Specifications

Brand: Cometic Gasket
Part #: C4615-027
UPC: 191070117597

Cometic Nissan 2002-2006 QR25DE .027in MLS Cylinder Head Gasket - 90mm Bore - EXCEPT Nissan Frontier

Name: Cometic Nissan 2002-2006 QR25DE .027in MLS Cylinder Head Gasket - 90mm Bore - EXCEPT Nissan Frontier
Brand: Cometic Gasket
SKU: cometic-gasket-cometic-nissan-2002-2006-qr25de-027in-mls-cylinder-head-gasket-90-t14-803589
Price: 106.52 USD
Availability: BackOrder

$106.52

On Backorder

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

Fits 2002-2006 Nissan Altima. This Cometic MLS head gasket features a Viton coating for improved sealing.

Key Features

Fits 2002-2006 Nissan Altima and 2002-2006 Nissan Sentra.
Multi-Layer Steel (MLS) construction offers increased strength and corrosion resistance.
Outer layers are embossed and coated with Viton, a heat-resistant elastomer.
Designed for maximum sealing performance without requiring additional sealants.
Suitable for mating aluminum heads to aluminum blocks or aluminum heads to cast iron blocks.
Features a 90mm bore size and a compressed operating thickness of 0.036 inches.

⚠️ 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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Will it fit your car?

Fits these vehicles

Nissan Altima 2002-2006
Nissan Sentra 2002-2006

About this part

Product Details

When you're rebuilding the top end of your 2002-2006 Nissan Altima with the QR25DE engine, a solid head gasket is crucial. This Multi-Layer Steel (MLS) gasket from Cometic is built to handle the pressures of modern engines. It's designed to provide a strong seal between your cylinder head and engine block without needing any extra sealants.

Cometic uses multiple layers of stainless steel for increased strength and resistance to corrosion. The outer layers are coated with Viton, a heat-resistant rubber material that can handle tough sealing conditions and different surface finishes. This construction helps it withstand the forces created when mating different block materials, like aluminum heads to cast iron blocks. The center layer is stainless steel and can be varied in thickness; this particular gasket has a compressed operating thickness of 0.036 inches, with an initial thickness of 0.027 inches, and a 90mm bore size.

This gasket is specifically made for the QR25DE engine found in the Altima and Sentra models from 2002-2006. It's important to note that this part is not for the Nissan Frontier.