Radiator

NOTE: For aluminum core (downflow-type or crossflow-type) radiator assemblies, the tanks and/or transmission oil cooler must not be removed from the radiator for service or repair. Replace the complete radiator assembly instead of plastic tank removal from the radiator.

Aluminum Core, Downflow

Vehicles equipped with the 7.3L diesel engine use a downflow-type radiator (8005). This radiator is designed so that coolant flows down from a top coolant tank, through the cooling tubes and into the bottom cooling tank.

The radiator core is of the aluminum tube- and fin-type. Tubes are controlled atmosphere brazed (CAB) to the headers.

The tanks are fiberglass-reinforced nylon and are not removable for radiator service. The tanks are designed to provide for even distribution of the coolant among the radiator tubes.

On vehicles with automatic transmissions, the radiator outlet tank (8054) also contains a transmission oil cooler.

Aluminum Core, Crossflow

Vehicles with the 4.9L, 5.0L, 5.8L and 7.5L engines use a crossflow type radiator. In this type radiator, coolant flows horizontally from a radiator inlet tank (8079) to a radiator outlet tank. On vehicles with automatic transmissions, the radiator outlet tank also includes a transmission oil cooler.

The core is of aluminum tube- and fin-type. Controlled atmosphere brazed (CAB) to the headers. The tanks are fiberglass-reinforced nylon, and are designed to allow for even distribution of coolant among the tubes.

Typical Crossflow (Horizontal) Radiator