What is the main advantage of a Multi-Layer Steel (MLS) gasket?

MLS gaskets, like this Cometic C4586-060, use multiple layers of stainless steel. This construction offers increased strength, better rebound characteristics under load, and improved resistance to corrosion compared to older gasket designs.

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

The Viton rubber coating on the outer layers helps create a robust seal. It's designed to meet the demands of harsh sealing environments and can withstand high temperatures, up to 482°F (250°C).

Does this gasket come with any hardware?

This product is for the cylinder head gasket only. It does not include head bolts or other installation hardware, which should be sourced separately if needed.

Specifications

Brand: Cometic Gasket
Part #: C4586-060
UPC: 191070116835

Cometic Honda B21A1 .060in MLS Cylinder Head Gasket - 84mm Bore

Name: Cometic Honda B21A1 .060in MLS Cylinder Head Gasket - 84mm Bore
Brand: Cometic Gasket
SKU: cometic-gasket-cometic-honda-b21a1-060in-mls-cylinder-head-gasket-84mm-bore-t14-808363
Price: 107.82 USD
Availability: BackOrder

$107.82

On Backorder

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

Cometic Honda B21A1 .060in MLS Cylinder Head Gasket - 84mm Bore. This multi-layer steel gasket offers improved sealing for demanding engine conditions.

Key Features

Fits a range of Honda and Subaru vehicles.
Multi-layer steel (MLS) construction for increased strength and rebound.
Stainless steel layers resist corrosion.
Embossed outer layers are coated with heat-resistant Viton rubber.
Viton coating is effective up to 482°F (250°C).
84mm bore and .060 inch thickness.

⚠️ 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

No-fit, no charge. Wrong part? Send it back, free return label.

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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) cylinder head gasket is a prime example. It’s designed for engines like the Honda B21A1, featuring an 84mm bore and a .060 inch thickness, making it suitable for a range of vehicles including the 1990-1991 Honda Prelude, 2004-2006 Subaru Baja, and many Subaru Impreza models.

This gasket is constructed from three to five layers of stainless steel. Cometic chooses stainless steel for its strength, its ability to rebound under pressure, and its resistance to corrosion. The outer layers are embossed and then coated on both sides with a Viton rubber material. This coating is heat resistant up to 482°F (250°C) and is built to handle tough sealing environments and various surface finishes you might encounter during an engine rebuild.