2020 Ram 2500 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

21 Coolant / Antifreeze parts are listed for the 2020 Ram 2500, from PRESTONE, VALVOLINE, PEAK and 3 other brands. FVP MV5050GAL carries the "Popular" badge. All of them fit every engine offered in the 2020 2500.

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, FVP, PEAK, PRESTONE and 1 other brand supply 4 parts: the catalog's value-priced group. A representative part number is FVP MV5050GAL.

The Heavy Duty section lists 3 options from VALVOLINE and PRESTONE — rated for severe service. VALVOLINE ZXG051 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 8 options from VALVOLINE, PRESTONE, ACDELCO and 2 other brands — built to original-equipment specification. ACDELCO 105027 is listed in this group.

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

MOPAR supplies the 7 Coolant Hose / Pipe parts for the 2020 Ram 2500.

Part numbers include MOPAR 68370509AB, MOPAR 68359826AD and MOPAR 68359815AA, 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 2020 Ram 2500 come from 2 brands — MAHLE / CLEVITE and ELRING.

This group includes ELRING 106320, MAHLE / CLEVITE G33890 and MAHLE / CLEVITE G33891.

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 109260.

This table covers the Coolant Level sensors. Typical signs include a warning lamp, a stored code, or a reading that drops out when the harness is wiggled. Inspect the connector and ground before replacing the sensor — wiring faults are often condemned as bad sensors. Read more

2 Coolant Level Sensor parts are listed for the 2020 Ram 2500, from MOPAR and STANDARD MOTOR PRODUCTS.

Part numbers include MOPAR 68489744AA and STANDARD MOTOR PRODUCTS FLS346.

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

8 Coolant Reservoir parts for the 2020 Ram 2500 come from 4 brands — TECHPRO, MOPAR, DORMAN and 1 other brand. The "Popular" part is DORMAN 603840.

This group includes DORMAN 603840, GPD 2411293 and MOPAR 68184910AE and the remaining 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

2 Coolant Reservoir Cap parts for the 2020 Ram 2500 come from 2 brands — CALORSTAT and MOTORAD. Every part fits both the 6.4L V8 and the 6.7L L6 DIESEL Turbocharged.

This group includes CALORSTAT RC0144 and MOTORAD T73.

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

MOTORAD supplies both parts for the 2020 Ram 2500. All of them fit every engine offered in the 2020 2500.

This group includes MOTORAD 3128 and MOTORAD 3034.

This table covers the Hose clamps. Read more

MOPAR supplies the 10 Hose Clamp parts for the 2020 Ram 2500. MOPAR 52006750 carries the "Popular" badge. 1 part fits every engine; the other 9 are engine-specific.

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

5 Intercooler parts are listed for the 2020 Ram 2500, from TYC, CSF, GPD and 2 other brands. TYC 18132 carries the "Popular" badge.

This group includes TYC 18132, CSF 6101 and GPD 2711410 and the remaining parts above.

This table covers the Intercooler Air Hose pipes. Read more

4 Intercooler Air Hose / Pipe parts are listed for the 2020 Ram 2500, from DORMAN and MOPAR.

This group includes DORMAN 667031, DORMAN 667030 and MOPAR 68357482AB and the remaining parts above.

This table covers the Intercooler Hose / Pipe clamps. Read more

2 Intercooler Hose / Pipe Clamp parts for the 2020 Ram 2500 come from DORMAN.

Listed part numbers: DORMAN 55247 and DORMAN 55246.

This table covers the seals at the Intercooler. 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: MOPAR 68322667AD.

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

10 Radiator parts are listed for the 2020 Ram 2500, from GPD, CSF, TYC and 4 other brands. CSF 3936 carries the "Popular" badge. 1 part fits every engine; the other 9 are engine-specific.

Economy: 2 parts, from GPD. A representative part number is GPD 13895C.

The Standard Replacement section: 8 options from CSF, TYC, KOYORAD and 3 other brands. CSF 3936 is listed in this group.

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

4 Radiator Fan Assembly parts for the 2020 Ram 2500 come from 4 brands — TECHPRO, FOUR SEASONS, MOPAR and 1 other brand.

The Economy section: 1 option from TECHPRO. TECHPRO CH3115198 is listed in this group.

Standard Replacement: 3 parts, from FOUR SEASONS, MOPAR and UAC. A representative part number is FOUR SEASONS 76155.

Listed part numbers: TECHPRO CH3115198, FOUR SEASONS 76155 and MOPAR 68322663AB, plus the other parts 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

5 Radiator Fan Blade parts for the 2020 Ram 2500 come from 4 brands — MOPAR, DORMAN, GPD and 1 other brand.

This group includes DORMAN 620057, GPD 2812305 and MOPAR 55056947AA 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

14 Radiator Fan Clutch parts are listed for the 2020 Ram 2500, from FOUR SEASONS, HAYDEN, US MOTOR WORKS and 5 other brands. FOUR SEASONS 46155 carries the "Popular" badge.

This table covers the brackets that mount the Radiator Fan Clutch Bearing. Typical signs include a cracked mount, a rattle, or a bracket that no longer holds alignment. Confirm position in the notes. Many brackets look alike and bolt to different corners. Read more

One part is listed for the 2020 Ram 2500 — GATES FB1022.

This table covers the shrouds that duct air through the fan and radiator. Read more

6 Radiator Fan Shroud parts are listed for the 2020 Ram 2500, from MOPAR, DORMAN and GPD.

Part numbers include DORMAN 620989, GPD 2812378 and MOPAR 68194960AC, among others listed 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

7 Radiator Hose parts for the 2020 Ram 2500 come from 2 brands — MOPAR and GATES. The "Popular" part is MOPAR 68359610AD.

Listed part numbers: MOPAR 68359610AD, GATES 52106 and GATES 52108, plus the other parts 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

2 Radiator Mount Bushing parts for the 2020 Ram 2500 come from MOPAR. Every part fits both the 6.4L V8 and the 6.7L L6 DIESEL Turbocharged.

Part numbers include MOPAR 68050200AA and MOPAR 68451118AA.

This table covers the seals at the Radiator. 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

4 Radiator Seal parts for the 2020 Ram 2500 come from MOPAR. 1 part fits every engine; the other 3 are engine-specific.

This group includes MOPAR 68362572AB, MOPAR 68362573AB and MOPAR 68359232AB 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

21 Temperature Sender / Sensor parts are listed for the 2020 Ram 2500, from STANDARD MOTOR PRODUCTS, WALKER PRODUCTS, GPD and 7 other brands. DORMAN 926427 carries the "Popular" badge. 1 part fits every engine; the other 20 are engine-specific.

Economy: 11 parts, from GPD, HOLSTEIN, STANDARD MOTOR PRODUCTS and 3 other brands. A representative part number is DORMAN 926427.

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 21191050.

The Standard Replacement section: 9 options from NTK, STANDARD MOTOR PRODUCTS, WALKER PRODUCTS and 2 other brands. NTK EF0034 is listed in this group.

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 2020 Ram 2500 come from 8 brands — MOTORAD, CALORSTAT, DORMAN and 5 other brands. The "Popular" part is MOTORAD 5426190. 2 parts fit every engine; the other 10 are engine-specific.

The Economy section: 2 options from DORMAN and SKP. DORMAN 9023045 is listed in this group.

Heavy Duty: 1 part, from MOTORAD. A representative part number is MOTORAD 5426190.

Premium: 1 part, from MOTORAD. A representative part number is MOTORAD 7426190.

Standard Replacement: 8 parts, from MOTORAD, CALORSTAT, AISIN and 3 other brands. A representative part number is MOTORAD 426190.

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

7 Thermostat / Thermostat Housing / Water Outlet Seal parts are listed for the 2020 Ram 2500, from FEL-PRO, MAHLE / CLEVITE, APEX and 2 other brands. FEL-PRO 35703 carries the "Popular" badge.

Part numbers include FEL-PRO 35703, APEX AWO2263 and ELRING 096800, among others listed above.

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

4 Thermostat Housing / Water Outlet parts for the 2020 Ram 2500 come from 2 brands — MOTORAD and MOPAR.

This group includes MOPAR 4893177AD, MOTORAD 956216 and MOTORAD CH1073 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

One part is listed for the 2020 Ram 2500 — MAHLE / CLEVITE C33356.

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

13 Water Pump parts for the 2020 Ram 2500 come from 8 brands — FVP, US MOTOR WORKS, GATES and 5 other brands. The "Popular" part is SKP SK1204540.

The Economy section: 5 options from US MOTOR WORKS, FVP and SKP. SKP SK1204540 is listed in this group.

Standard Replacement: 8 parts, from GATES, GMB, AISIN and 3 other brands. A representative part number is GATES 42271.

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

6 Water Pump Gasket parts are listed for the 2020 Ram 2500, from FEL-PRO, MAHLE / CLEVITE, APEX and 1 other brand.

Part numbers include APEX AWP3224, FEL-PRO 36149 and FEL-PRO 35525, among others listed 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

This group shows a single part: ELRING 073720.