2015 Ram 4500 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

18 Coolant / Antifreeze parts are listed for the 2015 Ram 4500, from PRESTONE, PEAK, VALVOLINE and 3 other brands. FVP MV5050GAL carries the "Popular" badge. All of them fit every engine offered in the 2015 4500.

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 2 options from PRESTONE and VALVOLINE — rated for severe service. PRESTONE AFC12100 is listed in this group.

The Premium section lists 4 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 7 options from PRESTONE, ACDELCO, VALVOLINE and 3 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

6 Coolant Hose / Pipe parts are listed for the 2015 Ram 4500, from MOPAR and DORMAN. DORMAN 626823 carries the "Popular" badge.

This group includes DORMAN 626823, DORMAN 626572 and MOPAR 68184913AE 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

This group shows a single part: AUTOTECNICA RM0720252.

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

4 Coolant Level Sensor parts are listed for the 2015 Ram 4500, from AUTOTECNICA, MOPAR, STANDARD MOTOR PRODUCTS and 1 other brand. 1 part fits every engine; the other 3 are engine-specific.

This group includes AUTOTECNICA DG0716969, MOPAR 68354536AA and STANDARD MOTOR PRODUCTS FLS318 and the remaining parts above.

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

10 Coolant Reservoir parts for the 2015 Ram 4500 come from 6 brands — DORMAN, GPD, MOPAR and 3 other brands. The "Popular" part is DORMAN 603840.

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

3 Coolant Reservoir Cap parts for the 2015 Ram 4500 come from 3 brands — AUTOTECNICA, GATES and MOTORAD. Every part fits both the 6.4L V8 and the 6.7L L6 DIESEL Turbocharged.

This group includes AUTOTECNICA GM0714619, GATES 31569 and MOTORAD T73.

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

MOTORAD supplies both parts for the 2015 Ram 4500. All of them fit every engine offered in the 2015 4500.

Listed part numbers: MOTORAD 3128 and MOTORAD 3034.

This table covers the Hose clamps. Read more

MOPAR supplies the 3 Hose Clamp parts for the 2015 Ram 4500.

Part numbers include MOPAR 68211466AA, MOPAR 55056718AA and MOPAR 6506848AA.

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

5 Intercooler parts are listed for the 2015 Ram 4500, from SPECTRA PREMIUM, AGILITY, DORMAN and 2 other brands. SPECTRA PREMIUM 44011308 carries the "Popular" badge.

This group includes SPECTRA PREMIUM 44011308, AGILITY 5010036 and DORMAN 918510 and the remaining parts above.

This table covers the Intercooler Air Hose pipes. Read more

7 Intercooler Air Hose / Pipe parts are listed for the 2015 Ram 4500, from GATES, DORMAN, MOPAR and 1 other brand. CONTINENTAL 65402 carries the "Popular" badge.

Listed part numbers: CONTINENTAL 65402, GATES 26573 and DORMAN 667311, plus the other parts above.

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

This group shows a single part: 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 68189159AA.

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

17 Radiator parts are listed for the 2015 Ram 4500, from GPD, CSF, SPECTRA PREMIUM and 6 other brands. CSF 3738 carries the "Popular" badge. 1 part fits every engine; the other 16 are engine-specific.

Economy: 4 parts, from GPD. A representative part number is GPD 13493C.

The Standard Replacement section: 13 options from CSF, SPECTRA PREMIUM, AGILITY and 5 other brands. CSF 3738 is listed in this group.

This table covers the petcocks used to drain the radiator. Read more

This group shows a single part: DORMAN 61134.

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 2015 Ram 4500 come from 4 brands — GPD, MOPAR, UAC and 1 other brand.

The Economy section: 1 option from GPD. GPD 2811742 is listed in this group.

Standard Replacement: 3 parts, from MOPAR, UAC and VDO / CONTINENTAL. A representative part number is MOPAR 55056948AH.

Part numbers include GPD 2811742, MOPAR 55056948AH and UAC FA50360C, 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

7 Radiator Fan Blade parts for the 2015 Ram 4500 come from 4 brands — DORMAN, GPD, MOPAR and 1 other brand.

Listed part numbers: DORMAN 620057, DORMAN 621592 and GPD 2812305, plus the other 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

15 Radiator Fan Clutch parts are listed for the 2015 Ram 4500, from HAYDEN, US MOTOR WORKS, FOUR SEASONS and 5 other brands. HAYDEN 2962 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

2 Radiator Fan Clutch Bearing Bracket parts are listed for the 2015 Ram 4500, from DORMAN and GATES.

Listed part numbers: DORMAN 300822 and GATES FB1022.

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

11 Radiator Fan Shroud parts are listed for the 2015 Ram 4500, from DORMAN, MOPAR and GPD. DORMAN 620989 carries the "Popular" badge.

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

15 Radiator Hose parts for the 2015 Ram 4500 come from 5 brands — MOPAR, GATES, CONTINENTAL and 2 other brands. The "Popular" part is CONTINENTAL 66842.

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 2015 Ram 4500 come from MOPAR.

This group includes MOPAR 68050200AA and MOPAR 68050199AA.

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

7 Radiator Seal parts for the 2015 Ram 4500 come from MOPAR.

Part numbers include MOPAR 68223711AB, MOPAR 68237359AA and MOPAR 68240593AA, among others listed above.

This table covers the Radiator Upper Air Baffle retainers and clips. Read more

This group shows a single part: DORMAN 963202.

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

15 Temperature Sender / Sensor parts are listed for the 2015 Ram 4500, from WALKER PRODUCTS, GPD, STANDARD MOTOR PRODUCTS and 6 other brands. DELPHI TS10330 carries the "Popular" badge.

Economy: 5 parts, from GPD, DORMAN, STANDARD MOTOR PRODUCTS and 1 other brand. 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, WALKER PRODUCTS, WELLS and 3 other brands. DELPHI TS10330 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

11 Thermostat parts for the 2015 Ram 4500 come from 8 brands — MOTORAD, DORMAN, SKP and 5 other brands. The "Popular" part is MOTORAD 5426190. 1 part fits 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: 7 parts, from MOTORAD, CALORSTAT, FOUR SEASONS 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

5 Thermostat / Thermostat Housing / Water Outlet Seal parts are listed for the 2015 Ram 4500, from MAHLE / CLEVITE, FEL-PRO, MOPAR and 1 other brand.

This group includes FEL-PRO 35703, MAHLE / CLEVITE C33717 and MAHLE / CLEVITE C31858 and the remaining parts above.

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

6 Thermostat Housing / Water Outlet parts for the 2015 Ram 4500 come from 4 brands — MOPAR, MOTORAD, FOUR SEASONS and 1 other brand.

Part numbers include FOUR SEASONS 86241, GATES CO35075 and MOPAR 4893177AD, among others listed 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 2015 Ram 4500 — 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

14 Water Pump parts for the 2015 Ram 4500 come from 8 brands — SKP, US MOTOR WORKS, FVP and 5 other brands. The "Popular" part is SKP SK1204540.

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

Standard Replacement: 9 parts, from GATES, DAYCO, GMB and 3 other brands. A representative part number is ACDELCO 2521041.

This table covers the Water Pump & Fan Clutch assemblies. Read more

This group shows a single part: US MOTOR WORKS MCK1104.

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

5 Water Pump Gasket parts are listed for the 2015 Ram 4500, from FEL-PRO, MAHLE / CLEVITE and MOPAR.

Part numbers include FEL-PRO 36149, FEL-PRO 35525 and MAHLE / CLEVITE K33718, among others listed above.

This table covers the Water Pump housings. Read more

One part is listed for the 2015 Ram 4500 — MOPAR 68210189AA.