System Diagram

Fig 1: Exploded View Of Engine Cooling System (Early Build)

Courtesy of FORD MOTOR CO.

ENGINE COOLING SYSTEM PARTS REFERENCE CHART

Item	Service Part Number	Description
1	18476	Auxiliary heater core
2	18K470	Auxiliary heater tube assembly
3	18476	Heater core
4	18472	Heater hose assembly
5	8276	Thermostat housing-to-degas bottle hose
6	9424	Lower intake manifold
7	8A505	Coolant inlet tube
8	6049	LH cylinder head
9	8A586	Thermostat housing
10	6881	Oil cooler (trailer tow equipped vehicles only)
11	8286	Lower radiator hose (trailer tow equipped vehicles only)
12	8075	Oil cooler hose assembly (trailer tow equipped vehicles only)
13	8286	Lower radiator hose
14	8260	Upper radiator hose
15	8005	Radiator
16	6010	Cylinder block
17	6049	RH cylinder head
18	8501	Coolant pump
19	8C289	Degas bottle-to-radiator hose
20	8A080	Degas bottle

Fig 2: Exploded View Of Engine Cooling System (Late Build)

Courtesy of FORD MOTOR CO.

ENGINE COOLING SYSTEM PARTS REFERENCE CHART

Item	Service Part Number	Description
1	18476	Auxiliary heater core
2	18K470	Auxiliary heater tube assembly
3	18476	Heater core
4	18472	Heater hose assembly
5	8276	Thermostat housing-to-degas bottle hose
6	9424	Lower intake manifold
7	8A505	Coolant inlet tube
8	6049	LH cylinder head
9	8A586	Thermostat housing
10	6881	Oil cooler (trailer tow equipped vehicles only)
11	8286	Lower radiator hose (trailer tow equipped vehicles only)
12	8075	Oil cooler hose assembly (trailer tow equipped vehicles only)
13	8286	Lower radiator hose
14	8260	Upper radiator hose
15	8005	Radiator
16	6010	Cylinder block
17	6049	RH cylinder head
18	8501	Coolant pump
19	8C289	Degas bottle-to-coolant inlet tube hose
20	8A080	Degas bottle