Cyl. Head Gasket Jeep 4.0L I6 87-06

The Edelbrock cylinder head gasket for Jeep 4.0L inline-6 engines (1987–2006) is a critical OEM-equivalent replacement for any serious 4.0 build, rebuild, or repair. Whether you're dealing with a blown head gasket on your XJ Cherokee, WJ Grand Cherokee, or TJ Wrangler, this sealed replacement restores compression integrity and prevents coolant and oil leakage that can compromise engine longevity. Mechanics and enthusiasts rely on this gasket because the 4.0 liter inline-six's robust architecture demands a gasket that matches factory tolerances and thermal cycling demands.

This cylinder head gasket features a steel core laminate construction with a 4.005-inch bore diameter and 0.042-inch compression thickness—dimensions engineered to seal consistently across the full operating temperature range of the venerable 4.0 liter powerplant. The laminated steel core design provides superior gasket sealing surface durability compared to older cork or compressed asbestos materials, resisting blowout and erosion from high cylinder pressures. The 0.042-inch thickness is precisely calibrated to maintain proper combustion chamber volume and compression ratio while ensuring a reliable seal against peak combustion loads, making it the ideal choice for stock applications and mild performance builds alike.

Mechanics tackling head gasket replacement on any Jeep 4.0 liter inline-six from 1987 through 2006 will find this gasket essential for cylinder head installation or full engine rebuilds. The gasket's compact dimensions (9.6 × 0.3 × 29.05 inches) allow straightforward fitment without modification, and the proven Edelbrock reputation ensures compatibility with both stock and lightly modified cylinder head surfaces. Installation requires standard engine gasket procedures—proper torque sequence, clean mating surfaces, and correct head bolt tension—to achieve a watertight seal that restores engine cooling efficiency and prevents catastrophic head gasket failure on the trail or road.