Thermostat Gasket Jeep 4.0L I6 83-06

The Edelbrock Thermostat Gasket for Jeep 4.0L I6 (1983–2006) is a composite replacement gasket engineered to seal the thermostat housing and maintain proper coolant circulation in inline-six Jeep engines. This OEM-quality component prevents coolant leaks that can lead to overheating, engine damage, or loss of cabin heat—critical issues in both street and off-road driving conditions.

Edelbrock's composite construction resists degradation from repeated thermal cycling, which is especially important in performance applications or vehicles operated in extreme temperatures. The gasket seals against the thermostat housing flange without requiring silicone sealant or complex installation procedures, making it suitable for both DIY rebuilds and professional service. At 0.05 lbs and compact dimensions (4.8 × 0.3 × 7.1 inches), installation takes minimal time and fits standard tool kits used for cooling system maintenance.

This gasket is essential for Jeep owners addressing cooling system leaks, performing scheduled thermostat replacement, or rebuilding engines after overheating damage. Whether restoring a classic CJ platform, servicing a YJ Wrangler, or maintaining an XJ Cherokee with high mileage, this component prevents mid-journey coolant loss and extends engine life. The Edelbrock part number 7274 is the direct fit for all 4.0L inline-six applications across the specified model years, ensuring correct sizing and seal integrity.