2021 Ford Expedition Cooling System Parts

This table covers the engine coolants and antifreeze formulations specified for this cooling system. Typical signs include a rising temperature gauge, rusty or sludged coolant, or a heater that blows cold. Use the chemistry named in the notes. Mixing silicate, OAT and HOAT formulas can gel in the radiator. Read more

13 Coolant / Antifreeze parts are listed for the 2021 Ford Expedition, from PRESTONE, PEAK, MOTORCRAFT and 2 other brands. PRESTONE AF3100 carries the "Popular" badge.

The Compatible With All Colors section lists 1 option from PRESTONE — grouped under the catalog's "Compatible With All Colors" designation — the notes column spells out what sets them apart. PRESTONE AF3055 is listed in this group.

In the Economy grade, PRESTONE, PEAK and VALVOLINE supply 3 parts: the catalog's value-priced group. A representative part number is PRESTONE AF3100.

The Heavy Duty section lists 1 option from PRESTONE — rated for severe service. PRESTONE AFC12100 is listed in this group.

The Premium section lists 5 options from PRESTONE and PEAK — a step above OE specification in materials, tolerances or warranty terms. PRESTONE AF2100 is listed in this group.

The Standard Replacement section lists 3 options from MOTORCRAFT and AISIN — built to original-equipment specification. MOTORCRAFT VC13G is listed in this group.

This table covers the hard pipes and extra hoses in the coolant circuit. Read more

5 Coolant Hose / Pipe parts are listed for the 2021 Ford Expedition, from MOTORCRAFT and GATES. MOTORCRAFT KM7997 carries the "Popular" badge.

Part numbers include MOTORCRAFT KM7997, GATES 52063 and MOTORCRAFT KM7953, among others listed above.

This table covers the seals at the Coolant Hose / Pipe. Typical signs include a wet housing, a drip after sitting, or fluid flung off a rotating shaft. Fix the surface the seal rides on. A new seal on a grooved shaft will leak again. Read more

3 Coolant Hose / Pipe Seal parts for the 2021 Ford Expedition come from 2 brands — MAHLE / CLEVITE and VICTOR REINZ.

This group includes MAHLE / CLEVITE C33399, MAHLE / CLEVITE C32197 and VICTOR REINZ 411085700.

This table covers the Coolant Hose Connector flanges. Read more

2 Coolant Hose Connector / Flange parts are listed for the 2021 Ford Expedition, from FOUR SEASONS and MOTORCRAFT.

Part numbers include FOUR SEASONS 86348 and MOTORCRAFT RH247.

This table covers the seals at the Coolant Hose Connector / Flange. Typical signs include a wet housing, a drip after sitting, or fluid flung off a rotating shaft. Fix the surface the seal rides on. A new seal on a grooved shaft will leak again. Read more

This group shows a single part: ELRING 096070.

This table covers the overflow / expansion tanks that hold extra coolant. Read more

5 Coolant Reservoir parts for the 2021 Ford Expedition come from 4 brands — VARIOUS MFR, DORMAN, GPD and 1 other brand. The "Popular" part is DORMAN 603318.

Listed part numbers: DORMAN 603318, GPD 2411403 and TECHPRO FO3014170, plus the other parts above.

This table covers the caps on the overflow / expansion tank. Typical signs include a leak at the neck, a cap that will not hold pressure, or a missing tether. Match the pressure rating or thread in the notes — radiator, reservoir and fuel caps are not interchangeable. Read more

5 Coolant Reservoir Cap parts for the 2021 Ford Expedition come from 5 brands — MOTORAD, CALORSTAT, GATES and 2 other brands. The "Popular" part is MOTORAD T57.

Part numbers include MOTORAD T57, CALORSTAT RC0150 and GATES 31549, among others listed above.

This table covers the seals at the Coolant Reservoir. Typical signs include a wet housing, a drip after sitting, or fluid flung off a rotating shaft. Fix the surface the seal rides on. A new seal on a grooved shaft will leak again. Read more

MOTORCRAFT supplies both parts for the 2021 Ford Expedition.

This group includes MOTORCRAFT RTS1073 and MOTORCRAFT RTS1087.

This table covers the adapters used to pressure-test this cooling system. Read more

One part is listed for the 2021 Ford Expedition — MOTORAD 3043.

This table covers the Hose clamps. Read more

One part is listed for the 2021 Ford Expedition — MOTORCRAFT YF37374.

This table covers the intercoolers that cool turbo or supercharger charge air. Read more

6 Intercooler parts are listed for the 2021 Ford Expedition, from CSF, TYC, GPD and 3 other brands. CSF 6071 carries the "Popular" badge.

Part numbers include CSF 6071, TYC 18073 and GPD 2711291, among others listed above.

This table covers the radiators that dump engine heat to airflow through the core. Typical signs include overheating in traffic, a wet core, or coolant that disappears with no puddle. Replace the cap if it cannot hold the rated pressure, and bleed the system after the swap. Read more

13 Radiator parts are listed for the 2021 Ford Expedition, from GPD, CSF, OSC and 6 other brands. CSF 3847 carries the "Popular" badge.

Economy: 2 parts, from GPD. A representative part number is GPD 13226C.

The Standard Replacement section: 11 options from CSF, OSC, UAC and 5 other brands. CSF 3847 is listed in this group.

This table covers the caps that hold system pressure at the radiator or reservoir neck. Typical signs include a leak at the neck, a cap that will not hold pressure, or a missing tether. Match the pressure rating or thread in the notes — radiator, reservoir and fuel caps are not interchangeable. Read more

One part is listed for the 2021 Ford Expedition — MOTORCRAFT RS531.

This table covers the fan assemblies (and clutches, where listed) that pull air through the radiator. Read more

18 Radiator Fan Assembly parts for the 2021 Ford Expedition come from 12 brands — DORMAN, SKP, MOTORCRAFT and 9 other brands. The "Popular" part is DORMAN 621542.

The Economy section: 7 options from DORMAN, SKP, GPD and 2 other brands. DORMAN 621542 is listed in this group.

Standard Replacement: 11 parts, from MOTORCRAFT, FOUR SEASONS, TYC and 4 other brands. A representative part number is MOTORCRAFT RF369.

This table covers the upper, lower and connecting hoses between radiator, engine and reservoir. Typical signs include swelling, cracks, a soft spot, or a leak at a clamp. Replace adjacent aged hoses while the system is drained — they share the same heat cycle. Read more

7 Radiator Hose parts for the 2021 Ford Expedition come from 3 brands — MOTORCRAFT, GATES and REIN. The "Popular" part is MOTORCRAFT KM5482.

This group includes MOTORCRAFT KM5482, MOTORCRAFT KM5485 and GATES 51793 and the remaining parts above.

This table covers the senders that report coolant temperature to the gauge or ECU. Typical signs include a gauge that sits on empty or overheat, or a lamp that does not match what the engine is doing. Rule out the cluster and the wiring before replacing the sender. Read more

One part is listed for the 2021 Ford Expedition — GPD 1712551.

This table covers the thermostats that open the coolant circuit at the specified temperature. Typical signs include slow warm-up, a gauge that climbs in traffic, or heat that never quite arrives. Replace the housing gasket with the thermostat and bleed the system so a trapped air pocket does not cook the new part. Read more

19 Thermostat parts for the 2021 Ford Expedition come from 6 brands — MOTORAD, DORMAN, SKP and 3 other brands. The "Popular" part is GATES 34238.

The Economy section: 2 options from DORMAN and SKP. DORMAN 9021090 is listed in this group.

Heavy Duty: 2 parts, from MOTORAD. A representative part number is MOTORAD 5655188.

The Performance section lists 3 options from MOTORAD — engineered beyond original-equipment specification. MOTORAD 2655188 is listed in this group.

Premium: 1 part, from MOTORAD. A representative part number is MOTORAD 7655188.

Standard Replacement: 11 parts, from MOTORAD, GATES, MOTORCRAFT and 1 other brand. A representative part number is GATES 34238.

This table covers the seals at the thermostat housing and water outlet. Typical signs include a wet housing, a drip after sitting, or fluid flung off a rotating shaft. Fix the surface the seal rides on. A new seal on a grooved shaft will leak again. Read more

5 Thermostat / Thermostat Housing / Water Outlet Seal parts are listed for the 2021 Ford Expedition, from MAHLE / CLEVITE and MOTORCRAFT. MOTORCRAFT RG640 carries the "Popular" badge.

Listed part numbers: MOTORCRAFT RG640, MAHLE / CLEVITE C33460 and MAHLE / CLEVITE GS33948, plus the other parts above.

This table covers the housings and outlets the thermostat sits in. Read more

4 Thermostat Housing / Water Outlet parts for the 2021 Ford Expedition come from 2 brands — MOTORAD and GATES.

Part numbers include GATES CO35063, MOTORAD CH1068 and MOTORAD CH1069, among others listed above.

This table covers the pumps that circulate coolant through the block and radiator. Typical signs include coolant at the weep hole, pulley play, or a growl from the front of the engine. Replace the thermostat and refill with the specified coolant whenever the pump comes off. Read more

6 Water Pump parts for the 2021 Ford Expedition come from 6 brands — FVP, US MOTOR WORKS, GATES and 3 other brands. The "Popular" part is GATES 43329.

The Economy section: 2 options from FVP and US MOTOR WORKS. FVP US8168 is listed in this group.

Standard Replacement: 4 parts, from GATES, MOTORCRAFT, DAYCO and 1 other brand. A representative part number is GATES 43329.

This group includes GATES 43329 and FVP US8168 and the remaining parts above.

This table covers the gaskets between the water pump and the block or housing. Typical signs include seepage at the joint, a burnt-oil smell, or a leak that appears only after a long drive. Clean both flanges and torque in the sequence the notes or the manual call for. Read more

8 Water Pump Gasket parts are listed for the 2021 Ford Expedition, from MAHLE / CLEVITE, FEL-PRO and ELRING. ELRING 085450 carries the "Popular" badge.

Listed part numbers: ELRING 085450, MAHLE / CLEVITE K33603 and ELRING 039500, plus the other parts above.

This table covers the Water Pump Seal O-rings. Typical signs include a seep at a fitting or a housing that weeps after a service. Lube the new O-ring with the fluid it will see, and do not roll it into the groove. Read more

2 Water Pump Seal / O-Ring parts for the 2021 Ford Expedition come from 2 brands — FEL-PRO and MAHLE / CLEVITE.

This group includes FEL-PRO 36082 and MAHLE / CLEVITE K32787.