Cooling Parts for Jeep CJ7
Water Pump, Thermostat & Radiator Hose for Reliable Engine Cooling (1976–1986).
Why the Cooling System in the Jeep CJ7 Reaches Its Limits Over the Years.
The cooling system in the Jeep CJ7 has to keep engine temperatures under control decade after decade – a real test during off-road climbs at full throttle or idling with the engine running. Water pumps lose flow as bearings wear and shaft seals leak, while thermostat housing gaskets harden with age and let coolant seep out. Radiator hoses stiffen over time, develop cracks, and can burst under pressure. Fan clutches lose their temperature-controlled engagement and stop pulling air reliably, radiators scale up or corrode from the inside and lose cooling capacity, and serpentine or V-belts wear down until they slip or snap. Anyone driving their CJ7 off-road or running the original 2.5 to 5.0-liter engine should inspect the cooling system regularly to avoid costly overheating damage.
- Temperature Sender & Water Pump: The temperature sending unit reports accurate engine temperature, and the matching water pump keeps coolant circulating.
- Fan Clutch & Idler Pulley: The fan clutch controls fan speed based on temperature, while the idler pulley keeps the belt tensioned.
- Thermostat & Housing Gasket: The thermostat housing gasket seals reliably, and the thermostat incl. gasket regulates coolant flow.
- Radiator Hoses: The lower radiator hose and the upper radiator hose connect engine and radiator securely.
- Radiator & Overflow Bottle: The radiator delivers the cooling capacity you need, while the overflow bottle kit keeps coolant level in check.
- Belts & Air Intake Tube: The serpentine belt drives the water pump and alternator, and the air intake tube routes cool air to the air filter.
American Brand Quality for Reliable Engine Cooling.
Water pumps, thermostats, and radiator components from Crown Automotive – American engineering with decades of off-road experience – form the backbone of the range, complemented by water pumps and belts from Gates. Precision-fit thermostat housings come from Dorman, fan shrouds and radiators from Omix, and the temperature sending unit from Standard Ignition – all American brands with proven quality.
Your Partner for Cooling System Service on the CJ7.
Whether you need a single gasket, a new radiator, or a full cooling system overhaul, we're happy to advise on thermostat opening temperature, correct belt tension, and the right installation order, including compatibility questions between the different 2.5, 3.8, 4.2, and 5.0-liter engines as well as AMC and GM powerplants. Shipping from stock goes out within the next business day.