Cometic C4105-043 Toyota Copper Head Gasket Bore - 3K/4K 84mm

The Cometic C4105-043 is a high-performance copper cylinder head gasket engineered specifically for Toyota 3K and 4K engines. This precision-manufactured gasket features an 84mm bore diameter and a compressed thickness of .043 inches (1.09mm), making it ideal for both stock rebuilds and performance applications.

Key Features:

• Solid copper construction for superior heat transfer and thermal conductivity
• 84mm bore diameter designed for Toyota 3K/4K engine blocks
• .043" compressed thickness provides reliable sealing
• Excellent conformability to imperfect sealing surfaces
• Reusable design when properly installed and removed
• Ideal for turbocharged and high-compression applications

Cometic copper head gaskets are known for their ability to withstand extreme cylinder pressures and temperatures. The pure copper material naturally fills surface imperfections and provides a gas-tight seal between the cylinder head and engine block. This gasket is compatible with Toyota 3K (1.2L) and 4K (1.3L) inline-four engines commonly found in classic Toyota Corollas, Starlets, and other vintage Toyota models.

Note: Copper gaskets require smooth surface finishes (30 RA or better recommended) and the use of appropriate sealant for optimal performance. O-ringing the block is recommended for high-boost applications.