Cometic C5843-066 MLS Cylinder Head Gasket Bore Mazda MZR Ford Duratec - 89.5mm 066

The Cometic C5843-066 is a Multi-Layer Steel (MLS) cylinder head gasket engineered for Mazda LF/L3 MZR and Ford Duratec 20/23 engines without variable valve timing. This precision gasket features a .066" (1.68mm) compressed thickness and an 89.5mm bore diameter, designed to provide exceptional sealing performance under extreme temperatures and pressures.

Key Specifications:

• Multi-Layer Steel (MLS) construction for superior durability and conformability
• Compressed thickness: .066 inches (1.68mm)
• Bore diameter: 89.5mm (3.524 inches)
• Compatible with Mazda LF/L3 MZR engines (non-VVT)
• Compatible with Ford Duratec 20 and Duratec 23 engines (non-VVT)
• Embossed stainless steel layers with Viton rubber sealing beads

Performance Benefits:

• Maximum blowout resistance through MLS technology
• Accommodates thermal expansion and engine movement
• Reusable design allows for multiple installations when properly handled
• Ideal for both stock and modified applications
• Eliminates leak paths between cylinder head and engine block

Cometic MLS head gaskets feature multiple layers of stainless steel with strategically placed embossments that create a seal around combustion chambers, coolant passages, and oil galleries. The Viton rubber coating provides additional sealing capability while protecting against corrosion. This gasket is specifically designed for non-variable valve timing applications and should not be used on VVT-equipped engines.