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Est. 1957
Cometic Mazda Miata 1.6L 80mm .040 inch MLS Head Gasket B6D Motor
Cometic Gasket
Cometic Gasket

Cometic Mazda Miata 1.6L 80mm .040 inch MLS Head Gasket B6D Motor

$111.18

On Backorder — Expected to ship by Apr 9, 2026

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Fits 1988-1993 Mazda 323. Cometic MLS head gasket with Viton coating for reliable sealing.

Key Features

  • Fits 1988-1993 Mazda 323, 1992-1993 Mazda MX-3, 1990-1993 Mazda Miata, and 1991-1994 Mercury Capri.
  • Multi-Layer Steel (MLS) construction offers increased strength and corrosion resistance.
  • Outer layers are coated with heat-resistant Viton rubber for reliable sealing.
  • Compressed thickness is 0.040 inches.
  • Designed for an 80mm bore.
  • No additional sealants are required 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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Product Details

If you're rebuilding the top end of your 1988-1993 Mazda 323, a solid head gasket is crucial for sealing the combustion chamber and coolant passages. This Multi-Layer Steel (MLS) head gasket from Cometic is built to handle the demands of modern engines.

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 high temperatures up to 482°F and works well with both aluminum and cast iron engine blocks. This gasket has a compressed thickness of 0.040 inches and is designed for an 80mm bore, making it a good choice for your B6D motor rebuild. Because it's an MLS gasket, it doesn't require any additional sealants.

Specifications

Brand
Cometic Gasket
Manufacturer Part #
C4122-040
UPC
191070005092

Frequently Asked Questions

Cometic Mazda Miata 1.6L 80mm .040 inch MLS Head Gasket B6D Motor

$111.18