93 Cooling system parts are listed for the 2020 Ram 1500 Classic, in 15 part types, covering both the 3.6L V6 and the 5.7L V8. Each one has a brand, a manufacturer part number and notes that say where it fits.
The cooling system system on the 2020 Ram 1500 Classic keeps operating temperature in the narrow band the engine was designed for, from radiator and water pump to thermostat and hoses. The largest groups are Coolant / Antifreeze (21 parts), Water Pump (12 parts) and Radiator (10 parts). The other 12 part types cover the remaining 50 parts.
The 2020 Ram 1500 Classic was sold with both the 3.6L V6 and the 5.7L V8. Every part on this page is engine-specific. Each part shows which engine(s) it fits.
The most listed brands for 2020 Ram 1500 Classic cooling system parts are PRESTONE (8 parts), DORMAN (7 parts) and VALVOLINE (6 parts), plus 35 more brands. Quality grades include Standard Replacement, Economy and Premium.
19 parts on this 2020 Ram 1500 Classic page carry a "Popular" badge — the source catalog's flag for options frequently chosen for this vehicle — including FVP MV5050GAL (Coolant / Antifreeze) and DORMAN 603571 (Coolant Reservoir). Click any part number to see every vehicle that part fits.
Coolant / Antifreeze
Compatible With All Colors
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| PRESTONE Fits: 3.6L V6 | AF3055 | 🇺🇸 US 🇨🇦 CA | Prime YellowAll Vehicles | View on Amazon |
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| FVP Popular Fits: 3.6L V6 | MV5050GAL | 🇺🇸 US 🇨🇦 CA | Extended LifeAll Makes / All Models | View on Amazon |
| PEAK Fits: 3.6L V6 | BQA1GAL | 🇺🇸 US 🇨🇦 CA | Blue Mountain Long LifeAll Vehicle | View on Amazon |
| PRESTONE Fits: 3.6L V6 | AF3100 | 🇺🇸 US 🇨🇦 CA | Prime Yellow - All VehiclesExtended Life | View on Amazon |
| VALVOLINE Fits: 3.6L V6 | 719009 | 🇺🇸 US 🇨🇦 CA | Multi-Vehicle Yellow1 Gallon | View on Amazon |
Heavy Duty
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| VALVOLINE Popular Fits: 3.6L V6 | ZXG051 | 🇺🇸 US 🇨🇦 CA | G05 Yellow1 Gallon | View on Amazon |
| PRESTONE Fits: 3.6L V6 | AFC12100 | 🇺🇸 US 🇨🇦 CA | Command Nitrite Free Extended Life CoolantYellow Nitrite Free OAT | View on Amazon |
| VALVOLINE Fits: 3.6L V6 | 846439 | 🇺🇸 US 🇨🇦 CA | HD Nitrite Free Extended Life Yellow1 Gallon | View on Amazon |
Premium
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| PRESTONE Popular Fits: 3.6L V6 | AF2100 | 🇺🇸 US 🇨🇦 CA | All Vehicles10yr/300k mi | View on Amazon |
| PEAK Fits: 3.6L V6 | PKP1GAL | 🇺🇸 US 🇨🇦 CA | All Vehicles Antifreeze1 Gallon | View on Amazon |
| PEAK Fits: 3.6L V6 | PXA1GAL | 🇺🇸 US 🇨🇦 CA | Global Lifetime1 Gallon | View on Amazon |
| PRESTONE Fits: 3.6L V6 | AF6900 | 🇺🇸 US 🇨🇦 CA | MAX Jeep/Ram/Dodge/Chrysler1 Gallon | View on Amazon |
| PRESTONE Fits: 3.6L V6 | AFMAX | 🇺🇸 US 🇨🇦 CA | Max Universal1 Gallon | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ACDELCO Popular Fits: 3.6L V6 | 105027 | 🇺🇸 US 🇨🇦 CA | DEX-Cool Extended LifeDexcool (with DE-Ionized Water) (with Bitterant) 1 Gallon | View on Amazon |
| VALVOLINE Popular Fits: 3.6L V6 | ZXEL1 | 🇺🇸 US 🇨🇦 CA | Dex-Cool Orange1 Gallon | View on Amazon |
| AISIN Fits: 3.6L V6 | ACD007 | 🇺🇸 US 🇨🇦 CA | PurpleOAT | View on Amazon |
| PEAK Fits: 3.6L V6 | NAP1GAL | 🇺🇸 US 🇨🇦 CA | OET North American Extended Life Purple1 Gallon | View on Amazon |
| PRESTONE Fits: 3.6L V6 | AF3400 | 🇺🇸 US 🇨🇦 CA | Prime OrangeOrange Compatible | View on Amazon |
| PRESTONE Fits: 3.6L V6 | AF850 | 🇺🇸 US 🇨🇦 CA | DEX-Cool Extended Life1 Gallon | View on Amazon |
| VALVOLINE Fits: 3.6L V6 | 888374 | 🇺🇸 US 🇨🇦 CA | American Vehicle Orange1 Gallon | View on Amazon |
| VALVOLINE Fits: 3.6L V6 | 877981 | 🇺🇸 US 🇨🇦 CA | G30 Purple1 Gallon | View on Amazon |
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.
21 Coolant / Antifreeze parts for the 2020 Ram 1500 Classic come from 6 brands — PRESTONE, VALVOLINE, PEAK and 3 other brands. The "Popular" part is FVP MV5050GAL.
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 4 options from FVP, PEAK, PRESTONE and 1 other brand — the catalog's value-priced group. FVP MV5050GAL is listed in this group.
In the Heavy Duty grade, VALVOLINE and PRESTONE supply 3 parts: rated for severe service. A representative part number is VALVOLINE ZXG051.
In the Premium grade, PRESTONE and PEAK supply 5 parts: a step above OE specification in materials, tolerances or warranty terms. A representative part number is PRESTONE AF2100.
In the Standard Replacement grade, VALVOLINE, PRESTONE, ACDELCO and 2 other brands supply 8 parts: built to original-equipment specification. A representative part number is ACDELCO 105027.
Coolant Reservoir
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DORMAN Popular Fits: 3.6L V6 | 603571 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| GPD Fits: 3.6L V6 | 2411130 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| MAHLE / CLEVITE Fits: 3.6L V6 | CRT312000S | 🇺🇸 US 🇨🇦 CA | Plastic | View on Amazon |
| SKP Fits: 3.6L V6 | SK603571 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| TECHPRO Fits: 3.6L V6 | CH3014130 | 🇺🇸 US 🇨🇦 CA | View on Amazon |
This table covers the overflow / expansion tanks that hold extra coolant.
5 Coolant Reservoir parts are listed for the 2020 Ram 1500 Classic, from DORMAN, GPD, MAHLE / CLEVITE and 2 other brands. DORMAN 603571 carries the "Popular" badge.
Listed part numbers: DORMAN 603571, GPD 2411130 and MAHLE / CLEVITE CRT312000S, plus the other parts above.
Coolant Reservoir Cap
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DORMAN Fits: 3.6L V6 | 54201 | 🇺🇸 US 🇨🇦 CA | with Water Symbol On Cap | View on Amazon |
| MOTORAD Fits: 3.6L V6 | T134 | 🇺🇸 US 🇨🇦 CA | Standard | View on Amazon |
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.
2 Coolant Reservoir Cap parts are listed for the 2020 Ram 1500 Classic, from DORMAN and MOTORAD.
Part numbers include DORMAN 54201 and MOTORAD T134.
Cooling System Tester Adapter
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GATES Fits: 3.6L V6 | 31413 | 🇺🇸 US 🇨🇦 CA | Cooling System PressureRadiator Cap | View on Amazon |
| MOTORAD Fits: 3.6L V6 | 3003 | 🇺🇸 US 🇨🇦 CA | StandardIncluded In Tester Kit | View on Amazon |
This table covers the adapters used to pressure-test this cooling system.
2 Cooling System Tester Adapter parts for the 2020 Ram 1500 Classic come from 2 brands — GATES and MOTORAD.
Listed part numbers: GATES 31413 and MOTORAD 3003.
Radiator
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| TECHPRO Fits: 3.6L V6 | CH3010354 | 🇺🇸 US 🇨🇦 CA | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| CSF Popular Fits: 3.6L V6 | 3662 | 🇺🇸 US 🇨🇦 CA | 1 Row15% Thicker Core | View on Amazon |
| DENSO Popular Fits: 3.6L V6 | 2219243 | 🇺🇸 US 🇨🇦 CA | Fits Crew Cab Pickup67.4" Bed | View on Amazon |
| AGILITY Fits: 3.6L V6 | 8013129 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| FVP Fits: 3.6L V6 | RAD13295 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| KOYORAD Fits: 3.6L V6 | A13129 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| OSC Fits: 3.6L V6 | 13295 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| SPECTRA PREMIUM Fits: 3.6L V6 | CU13129 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| TYC Fits: 3.6L V6 | 13129 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| UAC Fits: 3.6L V6 | RA13129C | 🇺🇸 US 🇨🇦 CA | View on Amazon |
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.
10 Radiator parts for the 2020 Ram 1500 Classic come from 10 brands — TECHPRO, CSF, DENSO and 7 other brands. The "Popular" part is CSF 3662.
The Economy section: 1 option from TECHPRO. TECHPRO CH3010354 is listed in this group.
Standard Replacement: 9 parts, from CSF, DENSO, AGILITY and 6 other brands. A representative part number is CSF 3662.
Radiator Cap
Locking Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GATES Fits: 3.6L V6 | 31518 | 🇺🇸 US 🇨🇦 CA | Safety Release Radiator Cap | View on Amazon |
| MOTORAD Fits: 3.6L V6 | ST16 | 🇺🇸 US 🇨🇦 CA | Safety Lever | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GATES Popular Fits: 3.6L V6 | 31528 | 🇺🇸 US 🇨🇦 CA | OE Type | View on Amazon |
| CALORSTAT Fits: 3.6L V6 | RC0153 | 🇺🇸 US 🇨🇦 CA | Includes 2 sealsMetallic | View on Amazon |
| MOTORAD Fits: 3.6L V6 | T16 | 🇺🇸 US 🇨🇦 CA | Standard | View on Amazon |
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.
5 Radiator Cap parts for the 2020 Ram 1500 Classic come from 3 brands — GATES, MOTORAD and CALORSTAT. The "Popular" part is GATES 31528.
In the Locking Replacement grade, GATES and MOTORAD supply 2 parts: grouped under the catalog's "Locking Replacement" designation — the notes column spells out what sets them apart. A representative part number is GATES 31518.
Standard Replacement: 3 parts, from GATES, CALORSTAT and MOTORAD. A representative part number is GATES 31528.
Part numbers include GATES 31528, GATES 31518 and MOTORAD ST16, among others listed above.
Radiator Drain Petcock
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DORMAN Fits: 3.6L V6 | 61134 | 🇺🇸 US 🇨🇦 CA | Push-in twist lock | View on Amazon |
This table covers the petcocks used to drain the radiator.
One part is listed for the 2020 Ram 1500 Classic — DORMAN 61134.
Radiator Fan Assembly
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DORMAN Popular Fits: 3.6L V6 | 620189 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| GPD Fits: 3.6L V6 | 2812033 | 🇺🇸 US 🇨🇦 CA | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| AGILITY Fits: 3.6L V6 | 6010381 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| FOUR SEASONS Fits: 3.6L V6 | 76417 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| TYC Fits: 3.6L V6 | 624040 | 🇺🇸 US 🇨🇦 CA | Express or SLT Model or Tradesman or Warlock | View on Amazon |
This table covers the fan assemblies (and clutches, where listed) that pull air through the radiator.
5 Radiator Fan Assembly parts are listed for the 2020 Ram 1500 Classic, from DORMAN, GPD, AGILITY and 2 other brands. DORMAN 620189 carries the "Popular" badge.
Economy: 2 parts, from DORMAN and GPD. A representative part number is DORMAN 620189.
The Standard Replacement section: 3 options from AGILITY, FOUR SEASONS and TYC. AGILITY 6010381 is listed in this group.
This group includes DORMAN 620189, GPD 2812033 and AGILITY 6010381 and the remaining parts above.
Radiator Hose
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DAYCO Fits: 3.6L V6 | 72998 | 🇺🇸 US 🇨🇦 CA | Curved | View on Amazon |
| DAYCO Fits: 3.6L V6 | 72973 | 🇺🇸 US 🇨🇦 CA | Curved | View on Amazon |
| GATES Fits: 3.6L V6 | 24366 | 🇺🇸 US 🇨🇦 CA | Molded | View on Amazon |
| GATES Fits: 3.6L V6 | 24367 | 🇺🇸 US 🇨🇦 CA | Molded | View on Amazon |
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.
4 Radiator Hose parts are listed for the 2020 Ram 1500 Classic, from DAYCO and GATES.
Part numbers include DAYCO 72998, DAYCO 72973 and GATES 24366, among others listed above.
Temperature Sender / Sensor
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GPD Fits: 3.6L V6 | 1814517 | 🇺🇸 US 🇨🇦 CA | Engine Block | View on Amazon |
| HOLSTEIN Fits: 3.6L V6 | 2CTS0206 | 🇺🇸 US 🇨🇦 CA | CYLINDER HEAD | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS Popular Fits: 3.6L V6 | TX259 | 🇺🇸 US 🇨🇦 CA | Located on Cylinder Head | View on Amazon |
| WALKER PRODUCTS Fits: 3.6L V6 | 2112018 | 🇺🇸 US 🇨🇦 CA | Sensor Only | View on Amazon |
| WELLS Fits: 3.6L V6 | 5S17542 | 🇺🇸 US 🇨🇦 CA | View on Amazon |
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.
5 Temperature Sender / Sensor parts for the 2020 Ram 1500 Classic come from 5 brands — GPD, HOLSTEIN, STANDARD MOTOR PRODUCTS and 2 other brands. The "Popular" part is STANDARD MOTOR PRODUCTS TX259.
The Economy section: 2 options from GPD and HOLSTEIN. GPD 1814517 is listed in this group.
Standard Replacement: 3 parts, from STANDARD MOTOR PRODUCTS, WALKER PRODUCTS and WELLS. A representative part number is STANDARD MOTOR PRODUCTS TX259.
This group includes STANDARD MOTOR PRODUCTS TX259, GPD 1814517 and HOLSTEIN 2CTS0206 and the remaining parts above.
Thermostat
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DORMAN Popular Fits: 3.6L V6 | 9023115 | 🇺🇸 US 🇨🇦 CA | Includes Housing | View on Amazon |
| SKP Fits: 3.6L V6 | SK9023115 | 🇺🇸 US 🇨🇦 CA | Includes Housing | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| CALORSTAT Popular Fits: 3.6L V6 | TH721782J | 🇺🇸 US 🇨🇦 CA | PerformanceIncludes 1 Rubber Gasket | View on Amazon |
| CALORSTAT Fits: 3.6L V6 | TH721789J | 🇺🇸 US 🇨🇦 CA | PerformanceIncludes 1 Rubber Gasket | View on Amazon |
| FOUR SEASONS Fits: 3.6L V6 | 86265 | 🇺🇸 US 🇨🇦 CA | Includes Housing | View on Amazon |
| MOTORAD Fits: 3.6L V6 | 953194 | 🇺🇸 US 🇨🇦 CA | Includes Housing, Seal | View on Amazon |
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.
6 Thermostat parts are listed for the 2020 Ram 1500 Classic, from CALORSTAT, DORMAN, SKP and 2 other brands. DORMAN 9023115 carries the "Popular" badge.
Economy: 2 parts, from DORMAN and SKP. A representative part number is DORMAN 9023115.
The Standard Replacement section: 4 options from CALORSTAT, FOUR SEASONS and MOTORAD. CALORSTAT TH721782J is listed in this group.
Listed part numbers: DORMAN 9023115, SKP SK9023115 and CALORSTAT TH721782J, plus the other parts above.
Thermostat / Thermostat Housing / Water Outlet Seal
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| FEL-PRO Popular Fits: 3.6L V6 | 35974 | 🇺🇸 US 🇨🇦 CA | Thermostat Seal | View on Amazon |
| APEX Fits: 3.6L V6 | AWO2330 | 🇺🇸 US 🇨🇦 CA | Thermostat Seal | View on Amazon |
| APEX Fits: 3.6L V6 | AWO2331 | 🇺🇸 US 🇨🇦 CA | Water Outlet Seal | View on Amazon |
| FEL-PRO Fits: 3.6L V6 | 35975 | 🇺🇸 US 🇨🇦 CA | Water Outlet Crossover Seal | View on Amazon |
| MAHLE / CLEVITE Fits: 3.6L V6 | C32591 | 🇺🇸 US 🇨🇦 CA | RubberWater Outlet Seal | View on Amazon |
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.
5 Thermostat / Thermostat Housing / Water Outlet Seal parts for the 2020 Ram 1500 Classic come from 3 brands — FEL-PRO, APEX and MAHLE / CLEVITE. The "Popular" part is FEL-PRO 35974.
Part numbers include FEL-PRO 35974, APEX AWO2330 and APEX AWO2331, among others listed above.
Thermostat Housing / Water Outlet
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DORMAN Popular Fits: 3.6L V6 | 9023102HP | 🇺🇸 US 🇨🇦 CA | OE FIX | View on Amazon |
| DORMAN Popular Fits: 3.6L V6 | 9023102 | 🇺🇸 US 🇨🇦 CA | Standard DesignCrossover | View on Amazon |
| SKP Fits: 3.6L V6 | SKCO34803 | 🇺🇸 US 🇨🇦 CA | Crossover | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| AUTOTECNICA Fits: 3.6L V6 | CY0719439 | 🇺🇸 US 🇨🇦 CA | Crossover | View on Amazon |
| FOUR SEASONS Fits: 3.6L V6 | 85997 | 🇺🇸 US 🇨🇦 CA | Coolant Tube | View on Amazon |
| MOTORAD Fits: 3.6L V6 | CH5997 | 🇺🇸 US 🇨🇦 CA | Includes Gasket | View on Amazon |
This table covers the housings and outlets the thermostat sits in.
6 Thermostat Housing / Water Outlet parts are listed for the 2020 Ram 1500 Classic, from DORMAN, SKP, AUTOTECNICA and 2 other brands. DORMAN 9023102HP carries the "Popular" badge.
Economy: 3 parts, from DORMAN and SKP. A representative part number is DORMAN 9023102HP.
The Standard Replacement section: 3 options from AUTOTECNICA, FOUR SEASONS and MOTORAD. AUTOTECNICA CY0719439 is listed in this group.
This group includes DORMAN 9023102HP, DORMAN 9023102 and SKP SKCO34803 and the remaining parts above.
Water Pump
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SKP Popular Fits: 3.6L V6 | SK1204450 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| BECK/ARNLEY Fits: 3.6L V6 | 1312528 | 🇺🇸 US 🇨🇦 CA | Metal Impeller | View on Amazon |
| ENGINETECH Fits: 3.6L V6 | WP538 | 🇺🇸 US | View on Amazon | |
| FVP Fits: 3.6L V6 | US8981 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| US MOTOR WORKS Fits: 3.6L V6 | US8981 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| WJB / INMOTION PARTS Fits: 3.6L V6 | WU8981 | 🇺🇸 US 🇨🇦 CA | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ACDELCO Popular Fits: 3.6L V6 | 252983 | 🇺🇸 US 🇨🇦 CA | GoldDoes Not Include Mount Bolts | View on Amazon |
| GATES Popular Fits: 3.6L V6 | 44020 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| AISIN Fits: 3.6L V6 | WPCH605V | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| DAYCO Fits: 3.6L V6 | DP1878 | 🇺🇸 US 🇨🇦 CA | Serpentine Belt Driven | View on Amazon |
| GMB Fits: 3.6L V6 | 1204450 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| MELLING Fits: 3.6L V6 | MWP538 | 🇺🇸 US 🇨🇦 CA | View on Amazon |
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.
12 Water Pump parts are listed for the 2020 Ram 1500 Classic, from SKP, BECK/ARNLEY, ENGINETECH and 9 other brands. SKP SK1204450 carries the "Popular" badge.
Economy: 6 parts, from SKP, BECK/ARNLEY, ENGINETECH and 3 other brands. A representative part number is SKP SK1204450.
The Standard Replacement section: 6 options from ACDELCO, GATES, AISIN and 3 other brands. ACDELCO 252983 is listed in this group.
Water Pump Gasket
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| APEX Fits: 3.6L V6 | AWP3283 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| FEL-PRO Fits: 3.6L V6 | 35982 | 🇺🇸 US 🇨🇦 CA | To Block | View on Amazon |
| MAHLE / CLEVITE Fits: 3.6L V6 | K32579 | 🇺🇸 US 🇨🇦 CA | Rubber with Metal Carrier | View on Amazon |
| ULTRA-POWER Fits: 3.6L V6 | 35982 | 🇺🇸 US 🇨🇦 CA | Water Pump Mounting Gasket | View on Amazon |
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.
4 Water Pump Gasket parts for the 2020 Ram 1500 Classic come from 4 brands — APEX, FEL-PRO, MAHLE / CLEVITE and 1 other brand.
Listed part numbers: APEX AWP3283, FEL-PRO 35982 and MAHLE / CLEVITE K32579, plus the other parts above.
Buying Cooling System Parts for a 2020 Ram 1500 Classic
On this vehicle, the cooling system system keeps operating temperature in the narrow band the engine was designed for, from radiator and water pump to thermostat and hoses.
- Match the engine first. Every cooling system part here is engine-specific; each row shows which engine(s) it fits.
- Read the notes on each row for position, trim and spec qualifiers before you order.
- Where labor overlaps, replace the thermostat and refill with fresh coolant whenever you change a water pump or radiator; original hoses on an older vehicle are on borrowed time.
- Cross-reference the manufacturer part number against your old part or a service-manual listing.
Start with the largest groups on this page: Coolant / Antifreeze and Water Pump .
Frequently Asked Questions
How many cooling system parts fit the 2020 Ram 1500 Classic?
Our catalog currently lists 93 cooling system parts for the 2020 Ram 1500 Classic across 15 subcategories and 38 brands, covering both the 3.6L V6 and the 5.7L V8. Each part is matched to the engine(s) it fits.
Do cooling system parts differ between 2020 Ram 1500 Classic engines?
Yes. Every cooling system part on this page is engine-specific. Each row shows which engine(s) it fits — use the filter at the top to hide the rest. If you're unsure which engine you have, check the emissions label under the hood or the 8th character of your VIN.
What are the signs of cooling system problems on a 2020 Ram 1500 Classic?
Common symptoms include a rising temperature gauge in traffic, sweet-smelling steam, crusty deposits around hose clamps, or a heater that blows cold. If you notice any of these, identify the affected subcategory above and cross-reference the part numbers listed.
What should I replace at the same time?
Where labor overlaps, replace the thermostat and refill with fresh coolant whenever you change a water pump or radiator; original hoses on an older vehicle are on borrowed time.
What do the market flags (US, CA, MX) on each part mean?
They show the market for which the manufacturer published application data for that part — where the vehicle was first sold, not where the part was made. If your 2020 Ram 1500 Classic was originally sold in the US, the safest choice is a part marked for the US market.
How do I make sure a part fits my 2020 Ram 1500 Classic?
First match the engine — each row shows which engine(s) the part fits. Then replace coolant with the exact specification the manufacturer calls for — mixing chemistries can gel and block small passages. The notes column carries position and trim qualifiers where they apply.
Other Parts for the 2020 Ram 1500 Classic
Cooling System Parts for Other Ram 1500 Classic Years
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