The 2021 Ram 3500 has 195 automatic transmission parts with verified fitment on this page — 45 part types and 38 brands, covering both the 6.4L V8 and the 6.7L L6 DIESEL Turbocharged. Each part includes a manufacturer part number and application notes.
On the 2021 Ram 3500, the automatic transmission covers the automatic gearbox and its supporting cast — filters, coolers, solenoids, mounts and torque-converter parts. 70 parts of the 195 listed are Transmission Fluid (35 parts), Filter (20 parts) and Clutch Plate Pack (15 parts). The other 42 part types cover the remaining 125 parts.
The 2021 Ram 3500 was sold with both the 6.4L V8 and the 6.7L L6 DIESEL Turbocharged. 73 parts fit every engine; the other 122 are engine-specific. Each part shows which engine(s) it fits.
The most listed brands for 2021 Ram 3500 automatic transmission parts are MOPAR (71 parts), RAYBESTOS POWERTRAIN (19 parts) and DURA-BOND (11 parts), plus 35 more brands. Quality grades include Multi-Vehicle, Standard Replacement and ZF Fluid.
28 parts on this 2021 Ram 3500 page carry a "Popular" badge — the source catalog's flag for options frequently chosen for this vehicle — including RAYBESTOS POWERTRAIN RTK6804 (Clutch Plate Pack) and HASTINGS / BALDWIN TF175 (Filter). Click any part number to see every vehicle that part fits.
Accumulator Piston
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MOPAR Fits: 6.7L L6 DIESEL Turbocharged | 4446620AD | 🇺🇸 US 🇨🇦 CA | Fits Cummins EngineCrew Cab Crew Cab | View on Amazon |
This table covers the pistons inside a transmission accumulator.
One part is listed for the 2021 Ram 3500 — MOPAR 4446620AD.
Accumulator Spring
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MOPAR Fits: 6.7L L6 DIESEL Turbocharged | 52119700AA | 🇺🇸 US 🇨🇦 CA | Fits Cummins Engine[OD Spring] | View on Amazon |
| MOPAR Fits: 6.7L L6 DIESEL Turbocharged | 52119702AA | 🇺🇸 US 🇨🇦 CA | Fits Cummins Engine[UD, 4C and LR springs] | View on Amazon |
| MOPAR Fits: 6.7L L6 DIESEL Turbocharged | 52119701AA | 🇺🇸 US 🇨🇦 CA | Fits Cummins Engine[2C Spring] | View on Amazon |
This table covers the Accumulator springs. Typical signs include a sagging corner, a broken coil, or a clunk from the spring pocket. Replace springs in axle pairs and inspect the seats.
MOPAR supplies the 3 Accumulator Spring parts for the 2021 Ram 3500.
This group includes MOPAR 52119700AA, MOPAR 52119702AA and MOPAR 52119701AA.
Automatic Transmission Assembly
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MOPAR Fits: 6.4L V8 | 68533468AA | 🇺🇸 US 🇨🇦 CA | Includes Torque Converter | View on Amazon |
| MOPAR Fits: 6.7L L6 DIESEL Turbocharged | 68533466AA | 🇺🇸 US 🇨🇦 CA | Includes Torque Converter | View on Amazon |
| MOPAR Fits: 6.7L L6 DIESEL Turbocharged | 68533467AA | 🇺🇸 US 🇨🇦 CA | Includes Torque Converter | View on Amazon |
| MOPAR Fits: 6.7L L6 DIESEL Turbocharged | R8533455AA | 🇺🇸 US 🇨🇦 CA | Remanufactured Includes Torque Converter | View on Amazon |
| MOPAR Fits: 6.7L L6 DIESEL Turbocharged | R8533456AA | 🇺🇸 US 🇨🇦 CA | Remanufactured Includes Torque Converter | View on Amazon |
| MOPAR Fits: 6.7L L6 DIESEL Turbocharged | R8533466AA | 🇺🇸 US 🇨🇦 CA | Remanufactured Includes Torque Converter | View on Amazon |
This table covers the Automatic Transmission assemblies.
MOPAR supplies the 6 Automatic Transmission Assembly parts for the 2021 Ram 3500.
Part numbers include MOPAR 68533468AA, MOPAR 68533466AA and MOPAR 68533467AA, among others listed above.
Automatic Transmission Control Unit (TCU)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MOPAR Fits: all 2021 3500 engines | 68446166AA | 🇺🇸 US 🇨🇦 CA | Fits Cab ChassisRegular Cab Chassis Wheelbase 2 | View on Amazon |
This table covers the control units that command automatic-transmission shifts.
One part is listed for the 2021 Ram 3500 — MOPAR 68446166AA.
Bushing
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DURA-BOND Fits: all 2021 3500 engines | 37994TG | 🇺🇸 US 🇨🇦 CA | Dry Film Lubricated | View on Amazon |
| DURA-BOND Fits: all 2021 3500 engines | 37993TG | 🇺🇸 US 🇨🇦 CA | Dry Film Lubricated | View on Amazon |
| DURA-BOND Fits: all 2021 3500 engines | DOT13BR | 🇺🇸 US 🇨🇦 CA | Bronze | View on Amazon |
| DURA-BOND Fits: all 2021 3500 engines | DOT11BRTG | 🇺🇸 US 🇨🇦 CA | Dry Film LubricatedBronze | View on Amazon |
This table covers the bushings in this assembly. 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.
4 Bushing parts for the 2021 Ram 3500 come from DURA-BOND. Every part fits both the 6.4L V8 and the 6.7L L6 DIESEL Turbocharged.
Listed part numbers: DURA-BOND 37994TG, DURA-BOND 37993TG and DURA-BOND DOT13BR, plus the other parts above.
Bushing Kit
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DURA-BOND Fits: all 2021 3500 engines | TK9 | 🇺🇸 US 🇨🇦 CA | Trans. code 68RFE | View on Amazon |
| DURA-BOND Fits: all 2021 3500 engines | TK9B | 🇺🇸 US 🇨🇦 CA | Enhanced Kit | View on Amazon |
| DURA-BOND Fits: all 2021 3500 engines | TK9BHP | 🇺🇸 US 🇨🇦 CA | High Performance Kit | View on Amazon |
This table covers the Bushing kits.
3 Bushing Kit parts for the 2021 Ram 3500 come from DURA-BOND. Every part fits both the 6.4L V8 and the 6.7L L6 DIESEL Turbocharged.
Listed part numbers: DURA-BOND TK9, DURA-BOND TK9B and DURA-BOND TK9BHP.
Case
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MOPAR Fits: 6.7L L6 DIESEL Turbocharged | 68009563AA | 🇺🇸 US 🇨🇦 CA | Fits Cummins EngineCrew Cab Crew Cab | View on Amazon |
This table covers the transmission or transfer-case housings.
This group shows a single part: MOPAR 68009563AA.
Case Gasket
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MOPAR Fits: 6.4L V8 | 68214914AA | 🇺🇸 US 🇨🇦 CA | Fits Cab ChassisPower Take Off Prep - Left Side | View on Amazon |
| MOPAR Fits: all 2021 3500 engines | 68020040AA | 🇺🇸 US 🇨🇦 CA | Fits Cab ChassisPower Take Off Prep - Left Side | View on Amazon |
This table covers the gaskets that seal the Case. 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.
MOPAR supplies both parts for the 2021 Ram 3500. 1 part fits every engine; the other 1 is engine-specific.
Listed part numbers: MOPAR 68214914AA and MOPAR 68020040AA.
Clutch Pack Piston
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MOPAR Fits: 6.7L L6 DIESEL Turbocharged | 4799650 | 🇺🇸 US 🇨🇦 CA | Fits Cummins EngineUnderdrive | View on Amazon |
| MOPAR Fits: 6.7L L6 DIESEL Turbocharged | 4799652 | 🇺🇸 US 🇨🇦 CA | Fits Cummins EngineUnderdrive | View on Amazon |
This table covers the pistons that apply a clutch pack.
MOPAR supplies both parts for the 2021 Ram 3500.
This group includes MOPAR 4799650 and MOPAR 4799652.
Clutch Plate
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MOPAR Fits: 6.7L L6 DIESEL Turbocharged | 4799116 | 🇺🇸 US 🇨🇦 CA | Fits Cummins Engine[9.62-9.85 mm] | View on Amazon |
| MOPAR Fits: 6.7L L6 DIESEL Turbocharged | 52119929AB | 🇺🇸 US 🇨🇦 CA | Fits Cummins Engine[8.78-9.01 mm] | View on Amazon |
| MOPAR Fits: 6.7L L6 DIESEL Turbocharged | 52119930AB | 🇺🇸 US 🇨🇦 CA | Fits Cummins Engine[9.22-9.45 mm] | View on Amazon |
This table covers the Clutch plates. Typical signs include warpage, cracks, or a plate that no longer locates the assembly. Confirm which plate the notes describe — backing plates, clutch plates and strike plates are different parts.
MOPAR supplies the 3 Clutch Plate parts for the 2021 Ram 3500.
This group includes MOPAR 4799116, MOPAR 52119929AB and MOPAR 52119930AB.
Clutch Plate Pack
Friction Plate & Steel Plate Pack
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| RAYBESTOS POWERTRAIN Popular Fits: 6.7L L6 DIESEL Turbocharged | RTK6804 | 🇺🇸 US 🇨🇦 CA | 4C GPZ Torqkit Clutch Pack | View on Amazon |
| RAYBESTOS POWERTRAIN Popular Fits: 6.7L L6 DIESEL Turbocharged | RCPTK6800 | 🇺🇸 US 🇨🇦 CA | Complete Set Torqkit Module | View on Amazon |
| RAYBESTOS POWERTRAIN Fits: 6.7L L6 DIESEL Turbocharged | RTK6801 | 🇺🇸 US 🇨🇦 CA | Underdrive GPZ Torqkit Clutch Pack | View on Amazon |
| RAYBESTOS POWERTRAIN Fits: 6.7L L6 DIESEL Turbocharged | RTK6802A | 🇺🇸 US 🇨🇦 CA | 2C GPZ Torqkit Clutch Pack | View on Amazon |
| RAYBESTOS POWERTRAIN Fits: 6.7L L6 DIESEL Turbocharged | RCP68RFE | 🇺🇸 US 🇨🇦 CA | Lowith Reverse Friction & Steel Clutch Pack Module | View on Amazon |
| RAYBESTOS POWERTRAIN Fits: 6.7L L6 DIESEL Turbocharged | RZP008 | 🇺🇸 US 🇨🇦 CA | Overdrive Z Pak Clutch Pack | View on Amazon |
Friction Plate Pack
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| RAYBESTOS POWERTRAIN Popular Fits: 6.7L L6 DIESEL Turbocharged | RCP96232 | 🇺🇸 US 🇨🇦 CA | Clutch Pack Module With High Energy | View on Amazon |
| RAYBESTOS POWERTRAIN Fits: 6.4L V8 | RGPZ284 | 🇺🇸 US 🇨🇦 CA | 8 speed trans.GPZ Clutch Pack Module | View on Amazon |
| RAYBESTOS POWERTRAIN Fits: 6.7L L6 DIESEL Turbocharged | RCPS232 | 🇺🇸 US 🇨🇦 CA | Stage-1 Performance Module | View on Amazon |
| RAYBESTOS POWERTRAIN Fits: 6.7L L6 DIESEL Turbocharged | RGPZ009 | 🇺🇸 US 🇨🇦 CA | Trans. code AS66RCTrans. code AS69RC | View on Amazon |
Steel Plate Pack
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| RAYBESTOS POWERTRAIN Fits: 6.4L V8 | STMZF19 | 🇺🇸 US 🇨🇦 CA | Steel Module | View on Amazon |
| RAYBESTOS POWERTRAIN Fits: 6.4L V8 | STMZF19K | 🇺🇸 US 🇨🇦 CA | Steel Module | View on Amazon |
| RAYBESTOS POWERTRAIN Fits: 6.7L L6 DIESEL Turbocharged | STMCHRY06K | 🇺🇸 US 🇨🇦 CA | Steel Module | View on Amazon |
| RAYBESTOS POWERTRAIN Fits: 6.7L L6 DIESEL Turbocharged | STMAISIN19 | 🇺🇸 US 🇨🇦 CA | Steel Module | View on Amazon |
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| RAYBESTOS POWERTRAIN Fits: 6.4L V8 | RHT96526 | 🇺🇸 US 🇨🇦 CA | 8 speed trans.HT Clutch Pack Module | View on Amazon |
This table covers the clutch-plate packs inside the transmission or transfer case.
15 Clutch Plate Pack parts for the 2021 Ram 3500 come from RAYBESTOS POWERTRAIN. The "Popular" part is RAYBESTOS POWERTRAIN RTK6804.
The Friction Plate & Steel Plate Pack section lists 6 options from RAYBESTOS POWERTRAIN — grouped under the catalog's "Friction Plate & Steel Plate Pack" designation — the notes column spells out what sets them apart. RAYBESTOS POWERTRAIN RTK6804 is listed in this group.
In the Friction Plate Pack grade, RAYBESTOS POWERTRAIN supplies 4 parts: grouped under the catalog's "Friction Plate Pack" designation — the notes column spells out what sets them apart. A representative part number is RAYBESTOS POWERTRAIN RCP96232.
The Steel Plate Pack section lists 4 options from RAYBESTOS POWERTRAIN — grouped under the catalog's "Steel Plate Pack" designation — the notes column spells out what sets them apart. RAYBESTOS POWERTRAIN STMZF19 is listed in this group.
1 further part sits outside the graded sections, with the same engine-level match.
Dipstick / Fluid Filler Tube
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MOPAR Fits: 6.4L V8 | 68241491AA | 🇺🇸 US 🇨🇦 CA | Fits Cab ChassisExcept Power Take Off Preparation - Left Side | View on Amazon |
| MOPAR Fits: 6.4L V8 | 68421849AA | 🇺🇸 US 🇨🇦 CA | Fits Cab ChassisRegular Cab Chassis Wheelbase 2 | View on Amazon |
| MOPAR Fits: 6.7L L6 DIESEL Turbocharged | 4627903AA | 🇺🇸 US 🇨🇦 CA | Fits Cab ChassisCummins Engine | View on Amazon |
This table covers the Dipstick / Fluid Filler tubes.
3 Dipstick / Fluid Filler Tube parts for the 2021 Ram 3500 come from MOPAR.
This group includes MOPAR 68241491AA, MOPAR 68421849AA and MOPAR 4627903AA.
Extension Housing
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MOPAR Fits: all 2021 3500 engines | 68250385AA | 🇺🇸 US 🇨🇦 CA | Fits Cab ChassisExcept Power Take Off Preparation - Left Side | View on Amazon |
| MOPAR Fits: 6.7L L6 DIESEL Turbocharged | 68445763AA | 🇺🇸 US 🇨🇦 CA | Fits Cummins engine HO EngineCrew Cab Crew Cab | View on Amazon |
This table covers the Extension housings.
2 Extension Housing parts for the 2021 Ram 3500 come from MOPAR. 1 part fits every engine; the other 1 is engine-specific.
Part numbers include MOPAR 68250385AA and MOPAR 68445763AA.
Extension Housing Bushing
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DURA-BOND Fits: all 2021 3500 engines | 37992 | 🇺🇸 US 🇨🇦 CA | Trans. code 68RFEExtension Housing | View on Amazon |
| DURA-BOND Fits: all 2021 3500 engines | RP6189T | 🇺🇸 US 🇨🇦 CA | Coated | View on Amazon |
This table covers the Extension Housing 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.
2 Extension Housing Bushing parts for the 2021 Ram 3500 come from DURA-BOND. Every part fits both the 6.4L V8 and the 6.7L L6 DIESEL Turbocharged.
Part numbers include DURA-BOND 37992 and DURA-BOND RP6189T.
Filter
Basic Kit (Without Transmission Fluid)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| VAICO Fits: 6.7L L6 DIESEL Turbocharged | V330525BEK | 🇺🇸 US 🇨🇦 CA | Includes: Hydraulic filter, Oil Pan gasket, Magnets, Oil Pan Bolts | View on Amazon |
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| AUTOTECNICA Fits: all 2021 3500 engines | RM1222960K | 🇺🇸 US 🇨🇦 CA | SLT Model or TradesmanTransmission Filter (68224232AA) and Gasket | View on Amazon |
| AUTOTECNICA Fits: 6.7L L6 DIESEL Turbocharged | DG1222947K | 🇺🇸 US 🇨🇦 CA | Includes:Transmission Filter (5013470AE) and Gasket | View on Amazon |
| DORMAN Fits: all 2021 3500 engines | 265850F | 🇺🇸 US 🇨🇦 CA | OE FIX | View on Amazon |
| SKP Fits: 6.7L L6 DIESEL Turbocharged | SKB245 | 🇺🇸 US 🇨🇦 CA | 4WD | View on Amazon |
| VARIOUS MFR Fits: all 2021 3500 engines | PT1271 | 🇺🇸 US 🇨🇦 CA | Trans. code 68RFEPan Filter | View on Amazon |
| VARIOUS MFR Fits: all 2021 3500 engines | PTK1271K | 🇺🇸 US 🇨🇦 CA | Spin-OnSump Kit | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| HASTINGS / BALDWIN Popular Fits: 6.7L L6 DIESEL Turbocharged | TF175 | 🇺🇸 US 🇨🇦 CA | Contains Pan-Type Filter and Spin-On Filter. | View on Amazon |
| MOPAR Popular Fits: 6.4L V8 | 68224232AA | 🇺🇸 US 🇨🇦 CA | Fits Cab ChassisPower Take Off Prep - Left Side | View on Amazon |
| MOPAR Popular Fits: 6.7L L6 DIESEL Turbocharged | 5179267AD | 🇺🇸 US 🇨🇦 CA | Fits Cummins EngineCrew Cab Crew Cab | View on Amazon |
| MOPAR Popular Fits: 6.7L L6 DIESEL Turbocharged | 5013470AE | 🇺🇸 US 🇨🇦 CA | Sump Filter | View on Amazon |
| RAYBESTOS POWERTRAIN Popular Fits: 6.7L L6 DIESEL Turbocharged | 515492 | 🇺🇸 US 🇨🇦 CA | 4WD | View on Amazon |
| WIX Popular Fits: 6.4L V8 | 58843 | 🇺🇸 US | with Deep Pan | View on Amazon |
| HASTINGS / BALDWIN Fits: 6.7L L6 DIESEL Turbocharged | 20070 | 🇺🇸 US 🇨🇦 CA | HIGH OUTPUT | View on Amazon |
| RAYBESTOS POWERTRAIN Fits: 6.7L L6 DIESEL Turbocharged | 515494 | 🇺🇸 US 🇨🇦 CA | 2WD | View on Amazon |
| RAYBESTOS POWERTRAIN Fits: 6.7L L6 DIESEL Turbocharged | 515489 | 🇺🇸 US 🇨🇦 CA | Spin-On Filter | View on Amazon |
| RAYBESTOS POWERTRAIN Fits: 6.7L L6 DIESEL Turbocharged | 515619 | 🇺🇸 US 🇨🇦 CA | Trans. code AS69RC | View on Amazon |
| VAICO Fits: 6.7L L6 DIESEL Turbocharged | V330222 | 🇺🇸 US 🇨🇦 CA | Big Horn or Laramie or Limited or Limited Longhorn or Lone Star or Tradesman | View on Amazon |
| WIX Fits: 6.4L V8 | 58846 | 🇺🇸 US | with Shallow Pan | View on Amazon |
| WIX Fits: 6.7L L6 DIESEL Turbocharged | WL10394 | 🇺🇸 US | Spin-On Filter | View on Amazon |
This table covers the replacement filters for this application — the table heading and notes say which circuit. Typical signs include restricted flow — long cranking, weak airflow, or dirty fluid after a short interval. Seat the new filter so it cannot bypass, and use the grade the notes call for.
20 Filter parts for the 2021 Ram 3500 come from 9 brands — RAYBESTOS POWERTRAIN, MOPAR, WIX and 6 other brands. The "Popular" part is HASTINGS / BALDWIN TF175. 4 parts fit every engine; the other 16 are engine-specific.
In the Basic Kit (Without Transmission Fluid) grade, VAICO supplies 1 part: grouped under the catalog's "Basic Kit (Without Transmission Fluid)" designation — the notes column spells out what sets them apart. A representative part number is VAICO V330525BEK.
The Economy section lists 6 options from AUTOTECNICA, VARIOUS MFR, DORMAN and 1 other brand — the catalog's value-priced group. AUTOTECNICA RM1222960K is listed in this group.
In the Standard Replacement grade, RAYBESTOS POWERTRAIN, MOPAR, WIX and 2 other brands supply 13 parts: built to original-equipment specification. A representative part number is HASTINGS / BALDWIN TF175.
Flexplate
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MOPAR Fits: 6.7L L6 DIESEL Turbocharged | 68444381AA | 🇺🇸 US 🇨🇦 CA | Fits Cummins engineExport Emissions, Underground Calibration | View on Amazon |
This table covers the flexplates that connect the crankshaft to the torque converter.
One part is listed for the 2021 Ram 3500 — MOPAR 68444381AA.
Flexplate Mounting Bolt
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DORMAN Fits: 6.4L V8 | 14131 | 🇺🇸 US 🇨🇦 CA | View on Amazon |
This table covers the Flexplate Mounting bolts.
One part is listed for the 2021 Ram 3500 — DORMAN 14131.
Fluid Cooler
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DORMAN Popular Fits: all 2021 3500 engines | 918411 | 🇺🇸 US 🇨🇦 CA | Engine Code ETL or Engine Code ETN | View on Amazon |
| MOPAR Popular Fits: 6.7L L6 DIESEL Turbocharged | 68322494AC | 🇺🇸 US 🇨🇦 CA | Fits Cummins EngineCrew Cab Crew Cab | View on Amazon |
| TYC Popular Fits: all 2021 3500 engines | 19158 | 🇺🇸 US 🇨🇦 CA | Crew Cab Pickup or Extended Crew Cab Pickup or Standard Cab Pickup | View on Amazon |
| GPD Fits: 6.4L V8 | 2611448 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| SKP Fits: all 2021 3500 engines | SK19158 | 🇺🇸 US 🇨🇦 CA | Crew Cab Pickup or Extended Crew Cab Pickup or Standard Cab Pickup | View on Amazon |
| TECHPRO Fits: 6.4L V8 | CH4050152 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| VARIOUS MFR Fits: all 2021 3500 engines | CH4050152 | 🇺🇸 US 🇨🇦 CA | without High Output Engine | View on Amazon |
This table covers the heat exchangers that cool transmission fluid. Typical signs include fluid that overheats, a leak at the cooler fittings, or milky fluid that says coolant and ATF have mixed. Flush the lines when you replace a cooler. Cross-contamination is how a small leak becomes a transmission job.
7 Fluid Cooler parts for the 2021 Ram 3500 come from 7 brands — DORMAN, MOPAR, TYC and 4 other brands. The "Popular" part is DORMAN 918411. 4 parts fit every engine; the other 3 are engine-specific.
Listed part numbers: DORMAN 918411, MOPAR 68322494AC and TYC 19158, plus the other parts above.
Fluid Cooler Line / Hose
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MOPAR Fits: 6.4L V8 | 68359844AB | 🇺🇸 US 🇨🇦 CA | Fits Pressure & Return HoseCrew Cab Wheelbase 2 | View on Amazon |
| MOPAR Fits: 6.4L V8 | 68359845AC | 🇺🇸 US 🇨🇦 CA | Fits Cab ChassisPressure & Return Hose | View on Amazon |
| MOPAR Fits: 6.7L L6 DIESEL Turbocharged | 68359848AB | 🇺🇸 US 🇨🇦 CA | Fits Cummins EnginePressure & Return Hose | View on Amazon |
| MOPAR Fits: 6.7L L6 DIESEL Turbocharged | 68397154AD | 🇺🇸 US 🇨🇦 CA | Fits Cummins EngineCummins engine HO Engine | View on Amazon |
| MOPAR Fits: 6.7L L6 DIESEL Turbocharged | 68359847AC | 🇺🇸 US 🇨🇦 CA | Fits Cab ChassisCummins Engine | View on Amazon |
| TRANSTEC Fits: all 2021 3500 engines | 71004002 | 🇺🇸 US 🇨🇦 CA | Fits TradesmanPickup | View on Amazon |
This table covers the Fluid Cooler Line hoses. 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.
6 Fluid Cooler Line / Hose parts for the 2021 Ram 3500 come from 2 brands — MOPAR and TRANSTEC. 1 part fits every engine; the other 5 are engine-specific.
This group includes MOPAR 68359844AB, MOPAR 68359845AC and MOPAR 68359848AB and the remaining parts above.
Fluid Pan
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| AUTOTECNICA Popular Fits: all 2021 3500 engines | CY1214647PRM | 🇺🇸 US 🇨🇦 CA | ÜRO SolutionsHD Aluminum Upgrade, Cooling Fins, Replaceable Filter | View on Amazon |
| DORMAN Popular Fits: all 2021 3500 engines | 265850 | 🇺🇸 US 🇨🇦 CA | OE FIX | View on Amazon |
| MOPAR Popular Fits: 6.4L V8 | 68225344AA | 🇺🇸 US 🇨🇦 CA | Includes Filter | View on Amazon |
| DORMAN Fits: all 2021 3500 engines | 265870 | 🇺🇸 US 🇨🇦 CA | OE FIX | View on Amazon |
| MOPAR Fits: 6.4L V8 | 68214905AA | 🇺🇸 US 🇨🇦 CA | Fits Cab ChassisExcept Power Take Off Preparation - Left Side | View on Amazon |
| MOPAR Fits: 6.7L L6 DIESEL Turbocharged | 4736676AA | 🇺🇸 US 🇨🇦 CA | Fits Cummins EngineCrew Cab Crew Cab | View on Amazon |
| SKP Fits: all 2021 3500 engines | SK265850 | 🇺🇸 US 🇨🇦 CA | 8 speed trans. | View on Amazon |
| SPECTRA PREMIUM Fits: all 2021 3500 engines | TP0870 | 🇺🇸 US 🇨🇦 CA | Trans. code 68RFE | View on Amazon |
| ULTRA-POWER Fits: all 2021 3500 engines | 265870 | 🇺🇸 US 🇨🇦 CA | 6 Speed Trans68RFE TRANS | View on Amazon |
This table covers the pans that hold automatic-transmission fluid.
9 Fluid Pan parts are listed for the 2021 Ram 3500, from MOPAR, DORMAN, AUTOTECNICA and 3 other brands. AUTOTECNICA CY1214647PRM carries the "Popular" badge. 6 parts fit every engine; the other 3 are engine-specific.
This group includes AUTOTECNICA CY1214647PRM, DORMAN 265850 and MOPAR 68225344AA and the remaining parts above.
Fluid Pan Bolt
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| REIN Fits: 6.4L V8 | HWB1068 | 🇺🇸 US 🇨🇦 CA | 8 speed trans. | View on Amazon |
This table covers the Fluid Pan bolts.
This group shows a single part: REIN HWB1068.
Fluid Pan Gasket
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MOPAR Popular Fits: 6.7L L6 DIESEL Turbocharged | 68425659AA | 🇺🇸 US 🇨🇦 CA | Fits Cummins EngineCrew Cab Crew Cab | View on Amazon |
| TRANSTEC Popular Fits: all 2021 3500 engines | 49444827 | 🇺🇸 US 🇨🇦 CA | Fits LaramiePickup | View on Amazon |
| FEL-PRO Fits: all 2021 3500 engines | TOS18773 | 🇺🇸 US 🇨🇦 CA | 8 speed trans. | View on Amazon |
| FEL-PRO Fits: all 2021 3500 engines | TOS18770 | 🇺🇸 US 🇨🇦 CA | 6 speed trans. | View on Amazon |
| FEL-PRO Fits: 6.7L L6 DIESEL Turbocharged | TOS18802 | 🇺🇸 US 🇨🇦 CA | Trans. code 68RFE | View on Amazon |
| MOPAR Fits: 6.4L V8 | 68261185AA | 🇺🇸 US 🇨🇦 CA | Fits Crew Cab8' Box | View on Amazon |
| VICTOR REINZ Fits: 6.4L V8 | 711953900 | 🇺🇸 US 🇨🇦 CA | Trans. code 68RFEEnhanced Design | View on Amazon |
This table covers the gaskets that seal the Fluid Pan. 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.
7 Fluid Pan Gasket parts for the 2021 Ram 3500 come from 4 brands — FEL-PRO, MOPAR, TRANSTEC and 1 other brand. The "Popular" part is MOPAR 68425659AA. 3 parts fit every engine; the other 4 are engine-specific.
Part numbers include MOPAR 68425659AA, TRANSTEC 49444827 and FEL-PRO TOS18773, among others listed above.
Fluid Pan Magnet
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MOPAR Fits: 6.4L V8 | 68019660AA | 🇺🇸 US 🇨🇦 CA | Fits Cab ChassisPower Take Off Prep - Left Side | View on Amazon |
| MOPAR Fits: 6.7L L6 DIESEL Turbocharged | 68207789AA | 🇺🇸 US 🇨🇦 CA | Fits Cummins EngineCrew Cab Crew Cab | View on Amazon |
This table covers the Fluid Pan magnets.
MOPAR supplies both parts for the 2021 Ram 3500.
This group includes MOPAR 68019660AA and MOPAR 68207789AA.
Fluid Pressure Sensor
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| NTK Fits: 6.7L L6 DIESEL Turbocharged | AT0017 | 🇺🇸 US 🇨🇦 CA | Trans. code 68RFE | View on Amazon |
| STANDARD MOTOR PRODUCTS Fits: all 2021 3500 engines | TCS78 | 🇺🇸 US 🇨🇦 CA | Terminal Quantity: 3Terminal Type: Blade | View on Amazon |
| WELLS Fits: 6.7L L6 DIESEL Turbocharged | 5S5389 | 🇺🇸 US 🇨🇦 CA | Trans. code 68RFE | View on Amazon |
This table covers the Fluid pressure sensors. Typical signs include a check-engine light for MAP or fuel-rail pressure, or a limp mode under load. A vacuum leak or a clogged reference line will fake a bad pressure sensor.
3 Fluid Pressure Sensor parts are listed for the 2021 Ram 3500, from NTK, STANDARD MOTOR PRODUCTS and WELLS. 1 part fits every engine; the other 2 are engine-specific.
This group includes NTK AT0017, STANDARD MOTOR PRODUCTS TCS78 and WELLS 5S5389.
Fluid Pump
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MOPAR Fits: 6.4L V8 | 68269470AB | 🇺🇸 US 🇨🇦 CA | Fits Cab ChassisPower Take Off Prep - Left Side | View on Amazon |
| MOPAR Fits: 6.7L L6 DIESEL Turbocharged | 52109082AB | 🇺🇸 US 🇨🇦 CA | Fits Cummins EngineCrew Cab Crew Cab | View on Amazon |
This table covers the Fluid pumps. Typical signs include noise from the pump, no pressure, or fluid that never arrives at the outlet. Prime or fill the pump as the notes require. A dry start is a common way to kill a new unit.
2 Fluid Pump parts for the 2021 Ram 3500 come from MOPAR.
Part numbers include MOPAR 68269470AB and MOPAR 52109082AB.
Fluid Pump Bushing
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DURA-BOND Fits: all 2021 3500 engines | 37998TG | 🇺🇸 US 🇨🇦 CA | Dry Film Lubricated | View on Amazon |
| DURA-BOND Fits: all 2021 3500 engines | 37998 | 🇺🇸 US 🇨🇦 CA | Trans. code 68RFEPump Body | View on Amazon |
This table covers the Fluid Pump 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.
2 Fluid Pump Bushing parts for the 2021 Ram 3500 come from DURA-BOND. Every part fits both the 6.4L V8 and the 6.7L L6 DIESEL Turbocharged.
Listed part numbers: DURA-BOND 37998TG and DURA-BOND 37998.
Fluid Pump Gasket
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MOPAR Fits: 6.4L V8 | 68244638AA | 🇺🇸 US 🇨🇦 CA | Fits Cab ChassisPower Take Off Prep - Left Side | View on Amazon |
This table covers the gaskets that seal the Fluid Pump. 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.
One part is listed for the 2021 Ram 3500 — MOPAR 68244638AA.
Fluid Pump Seal
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MOPAR Fits: 6.4L V8 | 68144277AA | 🇺🇸 US 🇨🇦 CA | Fits Crew Cab8' Box | View on Amazon |
This table covers the seals at the Fluid Pump. 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.
One part is listed for the 2021 Ram 3500 — MOPAR 68144277AA.
Fluid Temperature Sensor
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MOPAR Fits: 6.4L V8 | 68020004AA | 🇺🇸 US 🇨🇦 CA | Fits Cab ChassisPower Take Off Prep - Left Side | View on Amazon |
This table covers the Fluid temperature sensors. Typical signs include hard cold starts, a fan that never comes on, or a gauge that disagrees with the scan tool. A sensor that reads open or shorted is usually the part; an implausible-but-smooth reading can be wiring.
This group shows a single part: MOPAR 68020004AA.
Pressure Control (EPC) Solenoid
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MOPAR Fits: 6.7L L6 DIESEL Turbocharged | 68364308AA | 🇺🇸 US 🇨🇦 CA | Variable Force | View on Amazon |
This table covers the Pressure Control (EPC) solenoids. Typical signs include a harsh or missing shift, or a code for this solenoid circuit. Check resistance and the connector before dropping the pan for a solenoid.
This group shows a single part: MOPAR 68364308AA.
Shift Cable
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MOPAR Fits: all 2021 3500 engines | 68416732AB | 🇺🇸 US 🇨🇦 CA | Fits Regular Cab8 Foot Bed | View on Amazon |
| MOPAR Fits: all 2021 3500 engines | 68039341AB | 🇺🇸 US 🇨🇦 CA | Fits Mega Cab6 Speed Auto Aisin AS69RC HD Trans | View on Amazon |
| MOPAR Fits: all 2021 3500 engines | 68261255AD | 🇺🇸 US 🇨🇦 CA | Fits Cab ChassisPower Take Off Prep - Left Side | View on Amazon |
| MOPAR Fits: all 2021 3500 engines | 68261257AD | 🇺🇸 US 🇨🇦 CA | Fits Cab ChassisPower Take Off Prep - Left Side | View on Amazon |
This table covers the Shift cables. Typical signs include a stretched or frayed cable, or a control that no longer reaches the end of its travel. Route the new cable through the same clips. A kinked cable binds and fails early.
MOPAR supplies the 4 Shift Cable parts for the 2021 Ram 3500. All of them fit every engine offered in the 2021 3500.
Listed part numbers: MOPAR 68416732AB, MOPAR 68039341AB and MOPAR 68261255AD, plus the other parts above.
Shift Linkage Bushing
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DORMAN Fits: all 2021 3500 engines | 14104 | 🇺🇸 US 🇨🇦 CA | 3 Piece Kit | View on Amazon |
This table covers the Shift Linkage 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.
One part is listed for the 2021 Ram 3500 — DORMAN 14104.
Shift Solenoid
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DORMAN Fits: 6.7L L6 DIESEL Turbocharged | 609054 | 🇺🇸 US 🇨🇦 CA | Trans. code 68RFE | View on Amazon |
| MOPAR Fits: 6.7L L6 DIESEL Turbocharged | 68456067AA | 🇺🇸 US 🇨🇦 CA | Fits Cummins EngineCrew Cab Crew Cab | View on Amazon |
| MOPAR Fits: 6.7L L6 DIESEL Turbocharged | 68456067AB | 🇺🇸 US 🇨🇦 CA | Fits Cummins EngineCrew Cab Crew Cab | View on Amazon |
This table covers the Shift solenoids. Typical signs include a harsh or missing shift, or a code for this solenoid circuit. Check resistance and the connector before dropping the pan for a solenoid.
3 Shift Solenoid parts are listed for the 2021 Ram 3500, from MOPAR and DORMAN.
This group includes DORMAN 609054, MOPAR 68456067AA and MOPAR 68456067AB.
Solenoid Switch Valve Plug
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| TRANSGO Fits: all 2021 3500 engines | RFESV420NT | 🇺🇸 US 🇨🇦 CA | Solenoid Switch Valve Repair KitWithout Tools | View on Amazon |
| TRANSGO Fits: all 2021 3500 engines | RFESV453NT | 🇺🇸 US 🇨🇦 CA | Solenoid Switch Valve Repair KitWithout Tools | View on Amazon |
| TRANSGO Fits: all 2021 3500 engines | RFESV420WT | 🇺🇸 US 🇨🇦 CA | Solenoid Switch Valve Repair KitWith Tools | View on Amazon |
| TRANSGO Fits: all 2021 3500 engines | RFESV453WT | 🇺🇸 US 🇨🇦 CA | Solenoid Switch Valve Repair KitWith Tools | View on Amazon |
This table covers the Solenoid Switch Valve plugs. Typical signs include a leak at the drain or glow-plug hole, or a plug that has rounded off. Replace the crush washer and torque to the spec in the notes.
TRANSGO supplies the 4 Solenoid Switch Valve Plug parts for the 2021 Ram 3500. All of them fit every engine offered in the 2021 3500.
This group includes TRANSGO RFESV420NT, TRANSGO RFESV453NT and TRANSGO RFESV420WT and the remaining parts above.
Sun Gear
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MOPAR Fits: 6.7L L6 DIESEL Turbocharged | 52119771AA | 🇺🇸 US 🇨🇦 CA | Fits Cummins EngineCrew Cab Crew Cab | View on Amazon |
This table covers the Sun gears.
One part is listed for the 2021 Ram 3500 — MOPAR 52119771AA.
Torque Converter
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| LUK Fits: 6.7L L6 DIESEL Turbocharged | TC0011 | 🇺🇸 US 🇨🇦 CA | Mounting bolts included | View on Amazon |
| MOPAR Fits: 6.4L V8 | 68463722AA | 🇺🇸 US 🇨🇦 CA | Fits Cab ChassisPower Take Off Prep - Left Side | View on Amazon |
| MOPAR Fits: 6.4L V8 | 68466765AA | 🇺🇸 US 🇨🇦 CA | Fits Crew Cab Crew Cab8' Box | View on Amazon |
| MOPAR Fits: 6.7L L6 DIESEL Turbocharged | R8119671AG | 🇺🇸 US 🇨🇦 CA | Reman | View on Amazon |
| MOPAR Fits: 6.7L L6 DIESEL Turbocharged | RL109671AH | 🇺🇸 US 🇨🇦 CA | New | View on Amazon |
This table covers the Torque converters. Typical signs include a sulfur smell, rattling substrate, or an efficiency code. Confirm CARB vs Federal certification in the notes before ordering.
5 Torque Converter parts for the 2021 Ram 3500 come from 2 brands — MOPAR and LUK.
Part numbers include LUK TC0011, MOPAR 68463722AA and MOPAR 68466765AA, among others listed above.
Torque Converter Bolt
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DORMAN Fits: all 2021 3500 engines | 13875 | 🇺🇸 US 🇨🇦 CA | M8 X 1.25 X 18.00 | View on Amazon |
This table covers the Torque Converter bolts.
One part is listed for the 2021 Ram 3500 — DORMAN 13875.
Transmission Fluid
ATF +4
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MOPAR Popular Fits: all 2021 3500 engines | 68218057AC | 🇺🇸 US 🇨🇦 CA | ATF+4Quart | View on Amazon |
| VALVOLINE Popular Fits: 6.7L L6 DIESEL Turbocharged | 822348 | 🇺🇸 US 🇨🇦 CA | ATF + 41 Quart | View on Amazon |
| PENTOSIN Fits: all 2021 3500 engines | 1058112 | 🇺🇸 US 🇨🇦 CA | ATF441 Liter | View on Amazon |
| PENTOSIN Fits: all 2021 3500 engines | 1058212 | 🇺🇸 US 🇨🇦 CA | ATF445 Liters | View on Amazon |
| VALVOLINE Fits: 6.7L L6 DIESEL Turbocharged | 883587 | 🇺🇸 US 🇨🇦 CA | ATF + 41 Gallon | View on Amazon |
| VALVOLINE Fits: 6.7L L6 DIESEL Turbocharged | 886642 | 🇺🇸 US 🇨🇦 CA | ATF + 45 Gallon | View on Amazon |
Dexron
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ACDELCO Popular Fits: 6.7L L6 DIESEL Turbocharged | 109243 | 🇺🇸 US | Container Type: Plastic Container | View on Amazon |
Multi-Vehicle
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MOBIL Popular Fits: all 2021 3500 engines | 126505 | 🇺🇸 US 🇨🇦 CA | Multi-Vehicle ATF | View on Amazon |
| VALVOLINE Popular Fits: all 2021 3500 engines | VV3246 | 🇺🇸 US 🇨🇦 CA | Max Life Multi-Vehicle or Maxlife Multi-Vehicle Full Synthetic ATF1 Quart | View on Amazon |
| VALVOLINE Popular Fits: all 2021 3500 engines | 773775 | 🇺🇸 US 🇨🇦 CA | Max Life Multi-Vehicle or Maxlife Multi-Vehicle Full Synthetic ATF1 Gallon | View on Amazon |
| LIQUI MOLY Fits: 6.4L V8 | 20032 | 🇺🇸 US 🇨🇦 CA | Top Tec ATF 18001 Liter | View on Amazon |
| LIQUI MOLY Fits: 6.4L V8 | 22036 | 🇺🇸 US 🇨🇦 CA | Top Tec ATF 18005 Liter | View on Amazon |
| LIQUI MOLY Fits: 6.4L V8 | 20034 | 🇺🇸 US 🇨🇦 CA | Top TEC ATF 180020 Liter | View on Amazon |
| LIQUI MOLY Fits: 6.7L L6 DIESEL Turbocharged | 20018 | 🇺🇸 US 🇨🇦 CA | Top Tec ATF 12001 Liter | View on Amazon |
| LIQUI MOLY Fits: 6.7L L6 DIESEL Turbocharged | 20020 | 🇺🇸 US 🇨🇦 CA | Top Tec ATF 12005 Liter | View on Amazon |
| LIQUI MOLY Fits: 6.7L L6 DIESEL Turbocharged | 20022 | 🇺🇸 US 🇨🇦 CA | Top Tec ATF 120020 Liter | View on Amazon |
| LUBEGARD Fits: all 2021 3500 engines | 69032 | 🇺🇸 US 🇨🇦 CA | 1 QuartComplete Full Synthetic ATF Fluid | View on Amazon |
| LUCAS OIL Fits: 6.7L L6 DIESEL Turbocharged | 10418 | 🇺🇸 US 🇨🇦 CA | FULL SYNTHETIC MULTI-VEHICLE AUTOMATIC TRANSMISSION FLUID1 qt | View on Amazon |
| LUCAS OIL Fits: 6.7L L6 DIESEL Turbocharged | 18007 | 🇺🇸 US 🇨🇦 CA | Full Synthetic Multi-Vehicle Automatic Transmission Fluid6 Gallon | View on Amazon |
| VALVOLINE Fits: all 2021 3500 engines | 881051 | 🇺🇸 US 🇨🇦 CA | Maxlife Multi-Vehicle Full Synthetic ATF5 Gallon Bay Box | View on Amazon |
Type T-4 (Type T-IV)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| AISIN Popular Fits: all 2021 3500 engines | ATF0T4 | 🇺🇸 US 🇨🇦 CA | 1 QuartType T-IV | View on Amazon |
| IDEMITSU Fits: all 2021 3500 engines | 30040093750 | 🇺🇸 US | ATF Type TLS1 Quart | View on Amazon |
| IDEMITSU Fits: all 2021 3500 engines | 30040093953 | 🇺🇸 US | ATF Type TLS5 Quart | View on Amazon |
ZF Fluid
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MOPAR Fits: 6.4L V8 | 68218925AB | 🇺🇸 US 🇨🇦 CA | QuartLiter | View on Amazon |
| PENTOSIN Fits: 6.4L V8 | 1058110 | 🇺🇸 US 🇨🇦 CA | 1 LiterATF8 | View on Amazon |
| PENTOSIN Fits: 6.4L V8 | 1058210 | 🇺🇸 US 🇨🇦 CA | 5 LitersATF8 | View on Amazon |
| PENTOSIN Fits: 6.7L L6 DIESEL Turbocharged | 1058106 | 🇺🇸 US 🇨🇦 CA | ATF61 Liter | View on Amazon |
| PENTOSIN Fits: 6.7L L6 DIESEL Turbocharged | 1058207 | 🇺🇸 US 🇨🇦 CA | ATF65 Liters | View on Amazon |
| PENTOSIN Fits: 6.7L L6 DIESEL Turbocharged | 1058306 | 🇺🇸 US 🇨🇦 CA | ATF620 Liters or 1 Liter | View on Amazon |
| ZF Fits: all 2021 3500 engines | S671090312 | 🇺🇸 US 🇨🇦 CA | ZF Lifeguard Fluid 8includes 1 L Bottle | View on Amazon |
| ZF Fits: all 2021 3500 engines | 5961308623 | 🇺🇸 US 🇨🇦 CA | ZF Lifeguard Fluid 6.1 ATFincludes 1 L Bottle | View on Amazon |
| ZF Fits: all 2021 3500 engines | S671090311 | 🇺🇸 US 🇨🇦 CA | ZF Lifeguard Fluid 8includes 20 L Can | View on Amazon |
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| LUCAS OIL Fits: 6.7L L6 DIESEL Turbocharged | 10823 | 🇺🇸 US 🇨🇦 CA | 12 fl. oz. | View on Amazon |
| LUCAS OIL Fits: 6.7L L6 DIESEL Turbocharged | 108246 | 🇺🇸 US 🇨🇦 CA | Power Steering Fluid, 1 Quart | View on Amazon |
| VALVOLINE Fits: 6.4L V8 | 899179 | 🇺🇸 US 🇨🇦 CA | Extended Protection Full Synthetic ATF1 Quart | View on Amazon |
This table covers the automatic-transmission fluids specified for this gearbox. Typical signs include harsh or delayed shifts, fluid that smells burnt, or a shudder at light throttle. Use exactly the specification in the notes. Automatic transmissions are unforgiving of the wrong fluid.
35 Transmission Fluid parts for the 2021 Ram 3500 come from 11 brands — VALVOLINE, PENTOSIN, LIQUI MOLY and 8 other brands. The "Popular" part is MOPAR 68218057AC. ATF +4, Dexron, Multi-Vehicle, Type T-4 (Type T-IV) and ZF Fluid are all represented, and Multi-Vehicle alone accounts for 13 parts.
Transmission Fluid Additive
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| LUBEGARD Popular Fits: all 2021 3500 engines | 19610 | 🇺🇸 US 🇨🇦 CA | Instant Shudder Fixx2 oz | View on Amazon |
| LUBEGARD Popular Fits: all 2021 3500 engines | 60902 | 🇺🇸 US 🇨🇦 CA | Automatic Transmission Fluid Protectant10 oz | View on Amazon |
| LUBEGARD Fits: all 2021 3500 engines | 61910 | 🇺🇸 US 🇨🇦 CA | 10 ozHighly Friction Modified ATF Supplement | View on Amazon |
| LUBEGARD Fits: all 2021 3500 engines | 63010 | 🇺🇸 US 🇨🇦 CA | Platinum Universal ATF Protectant10 oz | View on Amazon |
| LUBEGARD Fits: all 2021 3500 engines | 63016 | 🇺🇸 US 🇨🇦 CA | Platinum Universal ATF Protectant15 oz | View on Amazon |
| LUBEGARD Fits: all 2021 3500 engines | 63032 | 🇺🇸 US 🇨🇦 CA | Platinum Universal ATF Protectant32 oz | View on Amazon |
This table covers the conditioners and additives used with this transmission fluid.
6 Transmission Fluid Additive parts for the 2021 Ram 3500 come from LUBEGARD. The "Popular" part is LUBEGARD 19610. Every part fits both the 6.4L V8 and the 6.7L L6 DIESEL Turbocharged.
Listed part numbers: LUBEGARD 19610, LUBEGARD 60902 and LUBEGARD 61910, plus the other parts above.
Transmission Mount
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ANCHOR Popular Fits: all 2021 3500 engines | 3376 | 🇺🇸 US 🇨🇦 CA | Rear6 speed trans. | View on Amazon |
| DEA / MARMON RIDE CONTROL Popular Fits: all 2021 3500 engines | A5821 | 🇺🇸 US 🇨🇦 CA | 6 speed trans. | View on Amazon |
| ANCHOR Fits: all 2021 3500 engines | 3577 | 🇺🇸 US 🇨🇦 CA | Rear8 speed trans. | View on Amazon |
| DEA / MARMON RIDE CONTROL Fits: all 2021 3500 engines | A20112 | 🇺🇸 US 🇨🇦 CA | 4WD8 speed trans. | View on Amazon |
| PIONEER Fits: all 2021 3500 engines | 623577 | 🇺🇸 US 🇨🇦 CA | 8 speed trans. | View on Amazon |
| WESTAR Fits: all 2021 3500 engines | EM4060 | 🇺🇸 US 🇨🇦 CA | 6 speed trans. | View on Amazon |
This table covers the mounts that hold the transmission to the chassis. Typical signs include a clunk on takeoff, a vibration at idle, or a separated rubber insert. Support the powertrain before unbolting a mount, and torque the fasteners in the notes.
6 Transmission Mount parts are listed for the 2021 Ram 3500, from ANCHOR, DEA / MARMON RIDE CONTROL, PIONEER and 1 other brand. ANCHOR 3376 carries the "Popular" badge. All of them fit every engine offered in the 2021 3500.
This group includes ANCHOR 3376, DEA / MARMON RIDE CONTROL A5821 and ANCHOR 3577 and the remaining parts above.
Transmission Mount Isolator
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MOPAR Fits: all 2021 3500 engines | 68090653AC | 🇺🇸 US 🇨🇦 CA | Fits Mega Cab6 Speed Auto Aisin AS69RC HD Trans | View on Amazon |
| MOPAR Fits: all 2021 3500 engines | 68090654AC | 🇺🇸 US 🇨🇦 CA | Fits Cab ChassisRegular Cab Chassis Wheelbase 2 | View on Amazon |
| MOPAR Fits: 6.4L V8 | 68090657AC | 🇺🇸 US 🇨🇦 CA | Fits Cab ChassisRegular Cab Chassis Wheelbase 2 | View on Amazon |
| MOPAR Fits: 6.4L V8 | 68090660AC | 🇺🇸 US 🇨🇦 CA | Fits Cab ChassisRegular Cab Chassis Wheelbase 2 | View on Amazon |
| MOPAR Fits: all 2021 3500 engines | 68233765AC | 🇺🇸 US 🇨🇦 CA | Cab ChassisRegular Cab Chassis Wheelbase 1 | View on Amazon |
| MOPAR Fits: 6.7L L6 DIESEL Turbocharged | 68271944AA | 🇺🇸 US 🇨🇦 CA | 3.73 Rear Axle RatioRegular Cab | View on Amazon |
| MOPAR Fits: 6.7L L6 DIESEL Turbocharged | 68271945AA | 🇺🇸 US 🇨🇦 CA | Fits Cab ChassisRegular Cab Chassis Wheelbase 2 | View on Amazon |
This table covers the isolators in a transmission mount.
7 Transmission Mount Isolator parts for the 2021 Ram 3500 come from MOPAR. 3 parts fit every engine; the other 4 are engine-specific.
This group includes MOPAR 68090653AC, MOPAR 68090654AC and MOPAR 68090657AC and the remaining parts above.
Transmission Service Kit
Expert Kit (Basic Kit & Transmission Fluid)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| VAICO Fits: 6.4L V8 | V330897 | 🇺🇸 US 🇨🇦 CA | Description: ATF-Service Kit (ZF8HP50 / 75 / 95 / 8-speed) with Oil Pan, Transmission Oil (ATF 8HP - 7 ltr)Includes: Oil Pan, Transmission Oil (ATF 8HP - 7 ltr) | View on Amazon |
| VAICO Fits: 6.7L L6 DIESEL Turbocharged | V330525 | 🇺🇸 US 🇨🇦 CA | Description: Cartridge Filt with Seal, Sump Filt, Oil Pan Gasket, Oil (Special 6 L), Instl HWIncludes: Includes: 5179267AD, 5015267AD, 4800029AA, 68218057AC, 04446728, 06101419 | View on Amazon |
Expert Kit + (Expert Kit and Extra Oil for Rinsing)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| VAICO Fits: 6.4L V8 | V330897XXL | 🇺🇸 US 🇨🇦 CA | Description: ATF-Service Kit (ZF8HP50 / 75 / 95 / 8-speed) with Oil Pan, Transmission Oil (ATF 8HP - 7 ltr) + 4 ltr For Oil rinsingIncludes: Oil Pan, Transmission Oil (ATF 8HP - 7 ltr) + 4 ltr For Oil rinsing | View on Amazon |
| VAICO Fits: 6.7L L6 DIESEL Turbocharged | V330525XXL | 🇺🇸 US 🇨🇦 CA | Description: Cartridge Filt with Seal, Sump Filt, Oil Pan Gasket, Oil (Special 13 L), Instl HWIncludes: Hydraulic filter, Oil Pan gasket, Oil, Magnets, Oil Pan Bolts | View on Amazon |
This table covers the Transmission service kits.
VAICO supplies the 4 Transmission Service Kit parts for the 2021 Ram 3500.
The Expert Kit (Basic Kit & Transmission Fluid) section lists 2 options from VAICO — grouped under the catalog's "Expert Kit (Basic Kit & Transmission Fluid)" designation — the notes column spells out what sets them apart. VAICO V330897 is listed in this group.
In the Expert Kit + (Expert Kit and Extra Oil for Rinsing) grade, VAICO supplies 2 parts: grouped under the catalog's "Expert Kit + (Expert Kit and Extra Oil for Rinsing)" designation — the notes column spells out what sets them apart. A representative part number is VAICO V330897XXL.
Listed part numbers: VAICO V330897, VAICO V330525 and VAICO V330897XXL, plus the other parts above.
Valve Body
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MOPAR Fits: 6.4L V8 | RL402284AA | 🇺🇸 US 🇨🇦 CA | Fits Crew Cab Crew Cab8' Box | View on Amazon |
| MOPAR Fits: 6.7L L6 DIESEL Turbocharged | 68448028AD | 🇺🇸 US 🇨🇦 CA | Fits Cummins EngineCrew Cab Crew Cab | View on Amazon |
| MOPAR Fits: 6.7L L6 DIESEL Turbocharged | R8448028AC | 🇺🇸 US 🇨🇦 CA | Reman | View on Amazon |
This table covers the valve bodies that route hydraulic pressure inside the transmission.
3 Valve Body parts for the 2021 Ram 3500 come from MOPAR.
Listed part numbers: MOPAR RL402284AA, MOPAR 68448028AD and MOPAR R8448028AC.
Valve Body Gasket
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| TRANSTEC Fits: all 2021 3500 engines | 49434421 | 🇺🇸 US 🇨🇦 CA | Fits LaramiePickup | View on Amazon |
This table covers the gaskets that seal the Valve Body. 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.
One part is listed for the 2021 Ram 3500 — TRANSTEC 49434421.
Valve Body Sleeve
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MOPAR Fits: 6.4L V8 | 68276661AA | 🇺🇸 US 🇨🇦 CA | Fits Crew Cab8' Box | View on Amazon |
This table covers the Valve Body sleeves.
This group shows a single part: MOPAR 68276661AA.
Buying Automatic Transmission Parts for a 2021 Ram 3500
On this vehicle, the automatic transmission covers the automatic gearbox and its supporting cast — filters, coolers, solenoids, mounts and torque-converter parts.
- Match the engine first. Some automatic transmission parts fit every engine; others are 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 filter and pan gasket with every fluid service, and flush the cooler lines when replacing a failed unit.
- Cross-reference the manufacturer part number against your old part or a service-manual listing.
Start with the largest groups on this page: Transmission Fluid and Filter .
Frequently Asked Questions
How many automatic transmission parts fit the 2021 Ram 3500?
Our catalog currently lists 195 automatic transmission parts for the 2021 Ram 3500 across 45 subcategories and 38 brands, covering both the 6.4L V8 and the 6.7L L6 DIESEL Turbocharged. Each part is matched to the engine(s) it fits.
Do automatic transmission parts differ between 2021 Ram 3500 engines?
Some do. 73 parts fit every engine; the other 122 are engine-specific. Each row (and the filter at the top) shows which. 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 automatic transmission problems on a 2021 Ram 3500?
Common symptoms include delayed or harsh engagement, slipping under load, fluid that smells burnt, or shuddering at light throttle around 40 mph. 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 filter and pan gasket with every fluid service, and flush the cooler lines when replacing a failed unit.
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 2021 Ram 3500 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 2021 Ram 3500?
First match the engine — each row shows which engine(s) the part fits. Then use exactly the fluid specification in the notes — automatic transmissions are the least forgiving component on the vehicle about fluid choice. The notes column carries position and trim qualifiers where they apply.
Other Parts for the 2021 Ram 3500
Automatic Transmission Parts for Other Ram 3500 Years
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Manufacturer names, model designations and part numbers are used for identification and fitment reference only. AutoFactsDB is an independent catalog and is not affiliated with, endorsed by, or sponsored by any vehicle manufacturer displayed on this page.