2021 Ford F-650 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

19 Coolant / Antifreeze parts for the 2021 Ford F-650 come from 5 brands — PRESTONE, PEAK, VALVOLINE and 2 other brands. The "Popular" part is PRESTONE AF2100. Every part fits both the 6.7L V8 DIESEL Turbocharged and the 7.3L V8.

In the Compatible With All Colors grade, PRESTONE supplies 1 part: grouped under the catalog's "Compatible With All Colors" designation — the notes column spells out what sets them apart. A representative part number is PRESTONE AF3055.

The Economy section lists 2 options from PEAK and PRESTONE — the catalog's value-priced group. PEAK BQA1GAL is listed in this group.

In the Heavy Duty grade, PEAK, PRESTONE and VALVOLINE supply 7 parts: rated for severe service. A representative part number is PEAK FCA1GAL.

In the Premium grade, PRESTONE and PEAK supply 4 parts: a step above OE specification in materials, tolerances or warranty terms. A representative part number is PRESTONE AF2100.

In the Standard Replacement grade, MOTORCRAFT, VALVOLINE and AISIN supply 5 parts: built to original-equipment specification. A representative part number is MOTORCRAFT VC13G.

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

7 Coolant Hose / Pipe parts for the 2021 Ford F-650 come from 2 brands — MOTORCRAFT and DORMAN. The "Popular" part is DORMAN 626830. 1 part fits every engine; the other 6 are engine-specific.

Part numbers include DORMAN 626830, MOTORCRAFT KM8086 and MOTORCRAFT KM5365, 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

MAHLE / CLEVITE supplies both parts for the 2021 Ford F-650.

Part numbers include MAHLE / CLEVITE C33846 and MAHLE / CLEVITE GS34033.

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

2 Coolant Reservoir parts are listed for the 2021 Ford F-650, from DORMAN and ULTRA-POWER.

Part numbers include DORMAN 603277, among others listed 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

2 Coolant Reservoir Cap parts are listed for the 2021 Ford F-650, from GATES and MOTORCRAFT.

This group includes GATES 31406 and MOTORCRAFT RS527.

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

This group shows a single part: MOTORCRAFT RTS1084.

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

This group shows a single part: MOTORCRAFT INTCO12.

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

3 Radiator parts for the 2021 Ford F-650 come from MOTORCRAFT.

Listed part numbers: MOTORCRAFT RAD230, MOTORCRAFT RAD123 and MOTORCRAFT RAD122.

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

4 Radiator Cap parts for the 2021 Ford F-650 come from MOTORCRAFT.

Part numbers include MOTORCRAFT RS534, MOTORCRAFT RS533 and MOTORCRAFT RH199, among others listed above.

This table covers the Radiator Fan blades. Typical signs include chatter, streaks, or a skip at the top of the stroke. Confirm left and right lengths in the notes — they are often different. Read more

4 Radiator Fan Blade parts are listed for the 2021 Ford F-650, from MOTORCRAFT, DORMAN and GPD.

This group includes DORMAN 621591, GPD 2812321 and MOTORCRAFT YA265 and the remaining parts above.

This table covers the Radiator Fan clutches. Typical signs include slip at highway speed, chatter on takeoff, or a pedal that stays low. Resurface or replace the flywheel with the clutch — a heat-checked flywheel wastes the new disc. Read more

6 Radiator Fan Clutch parts for the 2021 Ford F-650 come from 3 brands — FOUR SEASONS, HAYDEN and MOTORCRAFT.

This group includes FOUR SEASONS 46147, FOUR SEASONS 46153 and HAYDEN 3241 and the remaining parts above.

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

MOTORCRAFT supplies the 7 Radiator Hose parts for the 2021 Ford F-650.

Part numbers include MOTORCRAFT KM5385, MOTORCRAFT KM5393 and MOTORCRAFT KM5362, among others listed above.

This table covers the Radiator Mount bushings. Typical signs include a clunk over bumps, or a torn or walked-out bushing you can see. Press the new bushing square. A cocked bushing will tear in a few thousand miles. Read more

One part is listed for the 2021 Ford F-650 — DORMAN 927244.

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

This group shows a single part: GPD 1814536.

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

9 Thermostat parts are listed for the 2021 Ford F-650, from MOTORAD, MOTORCRAFT and GATES. MOTORCRAFT RT1206 carries the "Popular" badge.

In the Performance grade, MOTORAD supplies 1 part: engineered beyond original-equipment specification. A representative part number is MOTORAD MRD107.

The Standard Replacement section: 7 options from MOTORCRAFT, MOTORAD and GATES. MOTORCRAFT RT1206 is listed in this group.

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

Listed part numbers: MOTORCRAFT RT1206, MOTORAD MRD107 and MOTORCRAFT RT1249, plus the other parts above.

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

6 Thermostat / Thermostat Housing / Water Outlet Seal parts for the 2021 Ford F-650 come from 3 brands — MOTORCRAFT, MAHLE / CLEVITE and GATES.

This group includes GATES 33671, MAHLE / CLEVITE C32601 and MAHLE / CLEVITE C31302 and the remaining parts above.

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

8 Thermostat Housing / Water Outlet parts are listed for the 2021 Ford F-650, from MOTORCRAFT, DORMAN, SKP and 3 other brands. DORMAN 9021074 carries the "Popular" badge.

Economy: 2 parts, from DORMAN and SKP. A representative part number is DORMAN 9021074.

The Standard Replacement section: 5 options from MOTORCRAFT, FOUR SEASONS, GATES and 1 other brand. MOTORCRAFT RH315 is listed in this group.

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

This group includes DORMAN 9021074, SKP SKRH196 and MOTORCRAFT RH315 and the remaining parts above.

This table covers the gaskets that seal the Water Inlet. 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

This group shows a single part: MAHLE / CLEVITE C33825.

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 are listed for the 2021 Ford F-650, from MOTORCRAFT, GATES, GMB and 2 other brands. MOTORCRAFT PW504 carries the "Popular" badge.

Economy: 1 part, from SKP. A representative part number is SKP SK1254040.

The Standard Replacement section: 2 options from GATES and MOTORCRAFT. GATES 43187 is listed in this group.

9 ungrouped parts are not assigned to a grade, 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

This group shows a single part: MAHLE / CLEVITE K33826.