2021 Ford Mustang Cooling System Parts

This table covers the Battery coolers. Typical signs include overheated fluid, a leak at the fittings, or mixed fluids in the reservoir. Flush the lines when you replace a cooler. Read more

This group shows a single part: MOTORAD TA9232.

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

16 Coolant / Antifreeze parts are listed for the 2021 Ford Mustang, from PRESTONE, VALVOLINE, PEAK and 2 other brands. PRESTONE AF3100 carries the "Popular" badge. 9 parts fit every engine; the other 7 are engine-specific.

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 2 options from PRESTONE and VALVOLINE — 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 5 options from MOTORCRAFT, VALVOLINE 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

8 Coolant Hose / Pipe parts are listed for the 2021 Ford Mustang, from GATES, MOTORCRAFT and DAYCO.

This group includes DAYCO 87786, GATES 12516 and GATES 52561 and the remaining parts 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

6 Coolant Hose / Pipe Seal parts for the 2021 Ford Mustang come from 4 brands — MAHLE / CLEVITE, DORMAN, FEL-PRO and 1 other brand.

Listed part numbers: DORMAN 47450, FEL-PRO 36046 and MAHLE / CLEVITE C32197, plus the other parts above.

This table covers the Coolant Hose Connector flanges. Read more

One part is listed for the 2021 Ford Mustang — MOTORCRAFT RH282.

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

2 Coolant Hose Connector / Flange Seal parts for the 2021 Ford Mustang come from ELRING.

Listed part numbers: ELRING 240370 and ELRING 851260.

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

5 Coolant Reservoir parts for the 2021 Ford Mustang come from 5 brands — DORMAN, GPD, SKP and 2 other brands. The "Popular" part is DORMAN 603285.

Listed part numbers: DORMAN 603285, GPD 2411064 and SKP SK603285, 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

6 Coolant Reservoir Cap parts for the 2021 Ford Mustang come from 6 brands — MOTORAD, CALORSTAT, DORMAN and 3 other brands. The "Popular" part is MOTORAD T57. 4 parts fit every engine; the other 2 are engine-specific.

Listed part numbers: MOTORAD T57, CALORSTAT RC0150 and DORMAN 54211, plus the other parts above.

This table covers the Coolant Reservoir retainers and clips. Read more

One part is listed for the 2021 Ford Mustang — DORMAN 963249D.

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

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

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

6 Intercooler parts are listed for the 2021 Ford Mustang, from TYC, GPD, MOTORCRAFT and 3 other brands. TYC 18053 carries the "Popular" badge.

Listed part numbers: TYC 18053, GPD 2711316 and MOTORCRAFT INTCO14, plus the other parts above.

This table covers the Intercooler Air Hose pipes. Read more

GATES supplies both parts for the 2021 Ford Mustang.

Part numbers include GATES 29037 and GATES 29029.

This table covers the Inverter coolers. Typical signs include overheated fluid, a leak at the fittings, or mixed fluids in the reservoir. Flush the lines when you replace a cooler. Read more

This group shows a single part: MOTORAD TA9233.

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

19 Radiator parts are listed for the 2021 Ford Mustang, from MOTORCRAFT, UAC, TYC and 7 other brands. NISSENS 607224 carries the "Popular" badge.

Economy: 2 parts, from GPD and TECHPRO. A representative part number is GPD 13916C.

The Standard Replacement section: 8 options from MOTORCRAFT, NISSENS, UAC and 2 other brands. NISSENS 607224 is listed in this group.

9 ungrouped parts are not assigned to a grade, with the same engine-level match.

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 Mustang — MOTORCRAFT RS531.

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

15 Radiator Fan Assembly parts for the 2021 Ford Mustang come from 9 brands — MOTORCRAFT, TYC, TECHPRO and 6 other brands. The "Popular" part is DORMAN 621536.

The Economy section: 5 options from TECHPRO, DORMAN, GPD and 1 other brand. DORMAN 621536 is listed in this group.

Standard Replacement: 10 parts, from MOTORCRAFT, TYC, UAC and 2 other brands. A representative part number is MOTORCRAFT RF311.

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

17 Radiator Hose parts for the 2021 Ford Mustang come from 3 brands — MOTORCRAFT, GATES and CONTINENTAL. The "Popular" part is CONTINENTAL 67187.

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

24 Temperature Sender / Sensor parts are listed for the 2021 Ford Mustang, from WALKER PRODUCTS, HOLSTEIN, GPD and 10 other brands. HOLSTEIN 2CTS0299 carries the "Popular" badge.

Economy: 9 parts, from HOLSTEIN, GPD, ULTRA-POWER and 2 other brands. A representative part number is HOLSTEIN 2CTS0299.

In the Full Service Kit grade, WALKER PRODUCTS supplies 1 part: grouped under the catalog's "Full Service Kit" designation — the notes column spells out what sets them apart. A representative part number is WALKER PRODUCTS 21191026.

The Standard Replacement section: 13 options from STANDARD MOTOR PRODUCTS, WALKER PRODUCTS, MOTORCRAFT and 4 other brands. MOTORCRAFT DY1144 is listed in this group.

1 ungrouped part is not assigned to a grade, with the same engine-level match.

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

12 Thermostat parts for the 2021 Ford Mustang come from 5 brands — MOTORAD, MOTORCRAFT, GATES and 2 other brands. The "Popular" part is MOTORAD 1010180.

The Economy section: 1 option from DORMAN. DORMAN 9021076 is listed in this group.

The Performance section lists 1 option from MOTORAD — engineered beyond original-equipment specification. MOTORAD MRD107 is listed in this group.

Standard Replacement: 10 parts, from MOTORAD, MOTORCRAFT, GATES and 1 other brand. A representative part number is MOTORAD 1010180.

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

13 Thermostat / Thermostat Housing / Water Outlet Seal parts are listed for the 2021 Ford Mustang, from MOTORCRAFT, FEL-PRO, APEX and 2 other brands. FEL-PRO 35839 carries the "Popular" badge.

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

4 Thermostat Housing / Water Outlet parts for the 2021 Ford Mustang come from MOTORCRAFT.

This group includes MOTORCRAFT RH254, MOTORCRAFT RH284 and MOTORCRAFT RH285 and the remaining parts 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

12 Water Pump parts for the 2021 Ford Mustang come from 8 brands — MOTORCRAFT, FVP, SALERI and 5 other brands. The "Popular" part is AISIN WPZ743.

The Economy section: 3 options from FVP, SKP and US MOTOR WORKS. FVP US8975 is listed in this group.

Standard Replacement: 6 parts, from AISIN, GATES, FVP and 3 other brands. A representative part number is AISIN WPZ743.

3 further parts sit outside the graded sections, with the same engine-level match.

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

4 Water Pump Gasket parts are listed for the 2021 Ford Mustang, from ELRING, FEL-PRO, MAHLE / CLEVITE and 1 other brand.

This group includes ELRING 634910, FEL-PRO 35478 and MAHLE / CLEVITE K33817 and the remaining 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

3 Water Pump Seal / O-Ring parts for the 2021 Ford Mustang come from 3 brands — APEX, FEL-PRO and MAHLE / CLEVITE.

Listed part numbers: APEX AWP3177, FEL-PRO 35772 and MAHLE / CLEVITE 72230.