What is the compressed thickness of this head gasket?

This Cometic head gasket has a compressed operating thickness of .040 inches. This measurement is critical for ensuring proper compression ratios and sealing within the engine.

Does this gasket require any sealant during installation?

No, Cometic MLS head gaskets are designed to provide maximum sealing performance and do not require any additional sealants. The Viton coating on the outer layers ensures a reliable seal on its own.

What makes Multi-Layer Steel (MLS) gaskets a good choice for performance engines?

MLS gaskets are made of multiple stainless steel layers, which gives them increased strength and resilience. They are better able to rebound and resist corrosion, making them ideal for the higher pressures and temperatures found in high-output engines.

Specifications

Brand: Cometic Gasket
Part #: C4170-040
UPC: 191070000912

Cometic Toyota 4AG-GE 81mm Bore .040 inch MLS Head Gasket

Name: Cometic Toyota 4AG-GE 81mm Bore .040 inch MLS Head Gasket
Brand: Cometic Gasket
SKU: cometic-gasket-cometic-toyota-4ag-ge-81mm-bore-040-inch-mls-head-gasket-t14-7348
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 1985-1991 Toyota Corolla. Cometic 81mm bore MLS head gasket with .040" compressed thickness for reliable sealing.

Key Features

Fits 1985-1991 Toyota Corolla and 1985-1989 Toyota MR2.
Multi-Layer Steel (MLS) construction offers increased strength and corrosion resistance.
Features an 81mm bore and a compressed operating thickness of .040 inches.
Outer layers are coated with heat-resistant Viton rubber, rated up to 482°F (250°C).
Designed for reliable sealing with aluminum heads to aluminum blocks or cast iron blocks.
Requires no additional sealants for installation.

⚠️ 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

Toyota Corolla 1985-1991
Toyota MR2 1985-1989

About this part

Product Details

This Cometic Multi-Layer Steel (MLS) head gasket is built with an 81mm bore and a compressed thickness of .040 inches, making it a solid choice for your 1985-1991 Toyota Corolla with the 4A-GE engine. MLS gaskets are known for their strength and ability to handle the demands of high-output engines, offering excellent sealing performance without needing additional sealants.

The construction features 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 temperatures up to 482°F (250°C) and works well with both aluminum and cast iron engine blocks. This design helps prevent shearing forces between different metal types and ensures a reliable seal even under tough conditions. The center layer is uncoated stainless steel, allowing for precise thickness control.