2023 Ram 1500 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 2023 Ram 1500, from VALVOLINE, PRESTONE, PEAK and 1 other brand. 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 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 6 options from VALVOLINE, AISIN and PEAK — built to original-equipment specification. VALVOLINE ZXEL1 is listed in this group.

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

9 Coolant Hose / Pipe parts are listed for the 2023 Ram 1500, from MOPAR, DORMAN and ULTRA-POWER.

Part numbers include DORMAN 626603, MOPAR 68309848AA and MOPAR 68309921AB, among others listed above.

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

12 Coolant Reservoir parts for the 2023 Ram 1500 come from 7 brands — MOPAR, TECHPRO, GPD and 4 other brands. The "Popular" part is DORMAN 603729.

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

4 Coolant Reservoir Cap parts for the 2023 Ram 1500 come from 2 brands — MOTORAD and CALORSTAT.

Listed part numbers: CALORSTAT RC0144, MOTORAD T73 and MOTORAD T114, plus the other parts above.

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

One part is listed for the 2023 Ram 1500 — GATES 31413.

This table covers the Hose clamps. Read more

MOPAR supplies the 6 Hose Clamp parts for the 2023 Ram 1500. MOPAR 55056415AA carries the "Popular" badge.

This group includes MOPAR 55056415AA, MOPAR 4809147AA and MOPAR 52029091AA and the remaining parts above.

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

One part is listed for the 2023 Ram 1500 — MOPAR 68190237AA.

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

12 Radiator parts are listed for the 2023 Ram 1500, from MOPAR, CSF, TYC and 3 other brands. CSF 3887 carries the "Popular" badge.

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

6 Radiator Cap parts are listed for the 2023 Ram 1500, from GATES, MOTORAD, CALORSTAT and 1 other brand. GATES 31528 carries the "Popular" badge.

The Locking Replacement section lists 2 options from GATES and MOTORAD — grouped under the catalog's "Locking Replacement" designation — the notes column spells out what sets them apart. GATES 31518 is listed in this group.

The Standard Replacement section: 4 options from GATES, MOTORAD, CALORSTAT and 1 other brand. GATES 31528 is listed in this group.

This group includes GATES 31528, GATES 31518 and MOTORAD ST16 and the remaining parts above.

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

7 Radiator Fan Assembly parts for the 2023 Ram 1500 come from 6 brands — MOPAR, GPD, TYC and 3 other brands. The "Popular" part is MOPAR 68275634AC.

The Economy section: 1 option from GPD. GPD 2812251 is listed in this group.

Standard Replacement: 5 parts, from MOPAR, TYC, AGILITY and 2 other brands. A representative part number is MOPAR 68275634AC.

1 further part sits outside the graded sections, with the same engine-level match.

This group includes MOPAR 68275634AC, GPD 2812251 and TYC 624830 and the remaining 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

2 Radiator Fan Blade parts for the 2023 Ram 1500 come from 2 brands — DORMAN and GPD.

Listed part numbers: DORMAN 620057 and GPD 2812305.

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

4 Radiator Fan Clutch parts are listed for the 2023 Ram 1500, from FOUR SEASONS, HAYDEN, MOPAR and 1 other brand.

This group includes FOUR SEASONS 46088, HAYDEN 2906 and MOPAR 55056840AC 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

5 Radiator Hose parts for the 2023 Ram 1500 come from MOPAR.

This group includes MOPAR 68280626AD, MOPAR 68571921AA and MOPAR 68571922AA and the remaining 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

3 Radiator Mount Bushing parts for the 2023 Ram 1500 come from MOPAR.

Part numbers include MOPAR 68050200AA, MOPAR 68050199AA and MOPAR 68443573AA.

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 2023 Ram 1500 come from MOPAR.

Listed part numbers: MOPAR 68276399AA, MOPAR 55057071AB and MOPAR 68258927AA, plus the other 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

11 Temperature Sender / Sensor parts are listed for the 2023 Ram 1500, from MOPAR, WALKER PRODUCTS, DORMAN and 4 other brands. DORMAN 926427 carries the "Popular" badge.

Economy: 2 parts, from DORMAN and GPD. A representative part number is DORMAN 926427.

The Standard Replacement section: 8 options from MOPAR, WALKER PRODUCTS, DELPHI and 1 other brand. DELPHI TS10330 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

22 Thermostat parts for the 2023 Ram 1500 come from 7 brands — MOTORAD, MOPAR, DORMAN and 4 other brands. The "Popular" part is MOTORAD 7416203.

The Economy section: 1 option from DORMAN. DORMAN 9023113 is listed in this group.

Heavy Duty: 4 parts, from MOTORAD. A representative part number is MOTORAD 51009194.

The Performance section lists 3 options from MOTORAD — engineered beyond original-equipment specification. MOTORAD 2416160 is listed in this group.

Premium: 2 parts, from MOTORAD. A representative part number is MOTORAD 7416203.

Standard Replacement: 11 parts, from MOTORAD, MOPAR, GATES and 2 other brands. A representative part number is GATES 34053.

1 further part sits outside the graded sections, with the same engine-level match.

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

4 Thermostat / Thermostat Housing / Water Outlet Seal parts are listed for the 2023 Ram 1500, from MOPAR, FEL-PRO and MAHLE / CLEVITE.

Part numbers include FEL-PRO 36151, MAHLE / CLEVITE C33520 and MOPAR 4893786AA, among others listed above.

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

7 Thermostat Housing / Water Outlet parts for the 2023 Ram 1500 come from 4 brands — MOPAR, FOUR SEASONS, MOTORAD and 1 other brand. The "Popular" part is FOUR SEASONS 85997.

This group includes FOUR SEASONS 85997, FOUR SEASONS 86336 and MOPAR 5184653AF 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

11 Water Pump parts for the 2023 Ram 1500 come from 6 brands — MOPAR, GATES, BOSCH and 3 other brands. The "Popular" part is GATES 44110.

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

One part is listed for the 2023 Ram 1500 — MOPAR 68165890AA.

This table covers the Water Pump Inlet tubes. Read more

This group shows a single part: MOPAR 68165894AE.