Cometic C4568-040 MLS Head Gasket .040" 84 mm for 1991-2000 Mazda / Ford / Kia

Vehicle Fitment

• 1994-1997, 1999-2000 Mazda Miata (BP-4W/BP-ZE, 1.8L DOHC)
• 1990-1998 Mazda Protege (BP-4W/BP-ZE, 1.8L DOHC)
• 1991-1996 Ford Escort GT (& LX-E where DOHC 1.8L applies), 1.8L DOHC
• 1991-1996 Mercury Tracer LTS, 1.8L DOHC
• 1995-1997 Kia Sephia (GS/LS/RS), 1.8L DOHC

Fitment Notes

• Requires 1.8L DOHC engine (BP-4W/BP-ZE family or equivalent); SOHC or 1.6L engines are excluded
• Does **not** fit BP-Z3 BP-VVT engines beyond 2000 Miata, or other updated head designs
• Drivetrain: FWD for Ford Escort / Kia Sephia; RWD for Mazda Miata; FWD for Protege / Mercury Tracer

Features

• Multi-Layer Steel (MLS) construction for superior sealing under heat and pressure
• Three stainless steel layers with middle shim layer
• Outer layers have Viton rubber coating for chemical & thermal resistance
• Bore size 84 mm (≈3.307 in), matching OEM block bore for 1.8L BP-series
• Compressed gasket thickness .040 in (≈1.016 mm) for use in rebuilds or slight deck wear
• Embossed sealing rings around cylinders for enhanced leak prevention
• No additional sealants required when proper surface prep and torque are used
• OEM head bolt compatibility; engineered to match head/block aluminum surfaces

Specifications

• Bore Size: 84.00 mm (≈3.307 in)
• Compressed Thickness: 0.040 in (≈1.016 mm)
• Material: 3-layer Multi-Layer Steel (MLS) with Viton coatings on outer layers
• Engine Type: 1.8L DOHC (BP family or equivalent)
• Drivetrain: FWD (Kia Sephia, Ford Escort, Mercury Tracer, Mazda Protege), RWD (Mazda Miata)
• Position: Cylinder Head Gasket (seals head-block interface)

Included Components

• 1x Cometic MLS Head Gasket C4568-040

Product Description

The Cometic C4568-040 is a premium Multi-Layer Steel head gasket specially designed for 1.8L DOHC applications in several Mazda, Ford, Mercury, and Kia models from the early-1990s through 2000. With an 84 mm bore and .040 in thickness, it's ideal for rebuilds, performance tuning, or replacements where precise sealing is crucial. The gasket's three-layer MLS build, with Viton coated outer faces, ensures durability under heat, pressure, and varying metal surface finishes.

This part fits engines like the BP-4W / BP-ZE in Mazda Miata & Protege, as well as the equivalent 1.8L DOHC engines in Ford Escort GT / LX-E, Mercury Tracer LTS, and Kia Sephia GS / LS / RS (1991-1997). Before installing, ensure head and block surfaces are clean and flat, proper torque sequence is followed, and that the engine is indeed the DOHC 1.8L version. Not compatible with later VVT or SOHC engines or models with different head designs. Fitment confirmed through 2000, **2025 unconfirmed** for later variants.