The 2018 Ram 4500 has 74 automatic transmission parts with verified fitment on this page — 27 part types and 21 brands, covering both the 6.4L V8 and the 6.7L L6 DIESEL Turbocharged. Each part includes a manufacturer part number and application notes.
The automatic transmission on the 2018 Ram 4500 covers the automatic gearbox and its supporting cast — filters, coolers, solenoids, mounts and torque-converter parts. The largest groups are Transmission Fluid (12 parts), Filter (7 parts) and Output Shaft Bearing (6 parts). The other 24 part types cover the remaining 49 parts.
The 2018 Ram 4500 was sold with both the 6.4L V8 and the 6.7L L6 DIESEL Turbocharged. Every part on this page is engine-specific. Each part shows which engine(s) it fits.
21 brands supply automatic transmission parts for the 2018 Ram 4500, led by MOPAR (26 parts), NATIONAL (9 parts) and WJB / INMOTION PARTS (8 parts), plus 18 more brands. Quality grades include Economy, Standard Replacement and Multi-Vehicle.
A "Popular" badge means the source catalog flagged the part as frequently chosen for the 2018 Ram 4500. 9 parts have it, including NATIONAL 710941 (Extension Housing Seal) and HASTINGS / BALDWIN 20070 (Filter). Each part number opens a page with every vehicle that part fits.
Automatic Transmission Assembly
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MOPAR Fits: 6.4L V8 | RL300106AC | 🇺🇸 US 🇨🇦 CA | Includes Torque Converter | View on Amazon |
This table covers the Automatic Transmission assemblies.
This group shows a single part: MOPAR RL300106AC.
Automatic Transmission Control Unit (TCU)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MOPAR Fits: 6.4L V8 | 68227783AA | 🇺🇸 US 🇨🇦 CA | Fits Heavy Duty HEMI MDS Engine.Regular Cab Chassis Wheelbase 3 | View on Amazon |
This table covers the control units that command automatic-transmission shifts.
This group shows a single part: MOPAR 68227783AA.
Case Gasket
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MOPAR Fits: 6.4L V8 | 68214914AA | 🇺🇸 US 🇨🇦 CA | Fits Heavy Duty HEMI MDS EngineExc. Power Take Off Prep - Left Side | View on Amazon |
| MOPAR Fits: 6.4L V8 | 68020040AA | 🇺🇸 US 🇨🇦 CA | Fits Heavy Duty HEMI MDS EngineExc. Power 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.
2 Case Gasket parts for the 2018 Ram 4500 come from MOPAR.
Listed part numbers: MOPAR 68214914AA and MOPAR 68020040AA.
Dipstick / Fluid Filler Tube
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MOPAR Fits: 6.4L V8 | 4627953AB | 🇺🇸 US 🇨🇦 CA | Fits Heavy Duty HEMI MDS Engine.Regular Cab Chassis Wheelbase 3 | View on Amazon |
| MOPAR Fits: 6.4L V8 | 68241491AA | 🇺🇸 US 🇨🇦 CA | Fits Heavy Duty HEMI MDS Engine.Except Power Take Off Preparation - Left Side | View on Amazon |
This table covers the Dipstick / Fluid Filler tubes.
MOPAR supplies both parts for the 2018 Ram 4500.
Part numbers include MOPAR 4627953AB and MOPAR 68241491AA.
Extension Housing
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MOPAR Fits: 6.4L V8 | 68250385AA | 🇺🇸 US 🇨🇦 CA | Fits Heavy Duty HEMI MDS EnginePower Take Off Prep - Left Side | View on Amazon |
This table covers the Extension housings.
One part is listed for the 2018 Ram 4500 — MOPAR 68250385AA.
Extension Housing Gasket
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MOPAR Fits: 6.4L V8 | 68244610AA | 🇺🇸 US 🇨🇦 CA | Fits Heavy Duty HEMI MDS EngineExc. Power Take Off Prep - Left Side | View on Amazon |
This table covers the gaskets that seal the Extension 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.
This group shows a single part: MOPAR 68244610AA.
Extension Housing Seal
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| NATIONAL Popular Fits: 6.4L V8 | 710941 | 🇺🇸 US 🇨🇦 CA | 4 X 4Trans. code 66RFE | View on Amazon |
| NATIONAL Fits: 6.4L V8 | 711100 | 🇺🇸 US 🇨🇦 CA | with Aisin AS69RC Transmission | View on Amazon |
| NATIONAL Fits: 6.4L V8 | 4741 | 🇺🇸 US 🇨🇦 CA | with 4x2with 6-Speed Chrysler 66RFE Transmission | View on Amazon |
| WJB / INMOTION PARTS Fits: 6.4L V8 | WS711100 | 🇺🇸 US 🇨🇦 CA | with Aisin AS69RC Transmission | View on Amazon |
| WJB / INMOTION PARTS Fits: 6.4L V8 | WS710941 | 🇺🇸 US 🇨🇦 CA | Width (In): 0.39400000000000002 In | View on Amazon |
This table covers the seals at the Extension Housing. 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 Extension Housing Seal parts for the 2018 Ram 4500 come from 2 brands — NATIONAL and WJB / INMOTION PARTS. The "Popular" part is NATIONAL 710941.
This group includes NATIONAL 710941, NATIONAL 711100 and NATIONAL 4741 and the remaining parts above.
Filter
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| AUTOTECNICA Fits: 6.4L V8 | DG1222947K | 🇺🇸 US 🇨🇦 CA | Includes:Transmission Filter (5013470AE) and Gasket | View on Amazon |
| AUTOTECNICA Fits: 6.4L V8 | RM1222960K | 🇺🇸 US 🇨🇦 CA | Trans. code AS66RCTransmission Filter (68224232AA) and Gasket | View on Amazon |
| VARIOUS MFR Fits: 6.4L V8 | PT99613 | 🇺🇸 US 🇨🇦 CA | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| HASTINGS / BALDWIN Popular Fits: 6.4L V8 | 20070 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| MOPAR Popular Fits: 6.4L V8 | 68224232AA | 🇺🇸 US 🇨🇦 CA | Fits Heavy Duty HEMI MDS Engine.Power Take Off Prep - Left Side | View on Amazon |
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| VAICO Fits: 6.4L V8 | V330523 | 🇺🇸 US 🇨🇦 CA | Description: ATF-Kit ( 6-speed), with Hydraulic Filter and Oil Pan Gasket | View on Amazon |
| WIX Fits: 6.4L V8 | WL11218 | 🇺🇸 US | 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.
7 Filter parts are listed for the 2018 Ram 4500, from AUTOTECNICA, VARIOUS MFR, HASTINGS / BALDWIN and 3 other brands. HASTINGS / BALDWIN 20070 carries the "Popular" badge.
In the Economy grade, AUTOTECNICA and VARIOUS MFR supply 3 parts: the catalog's value-priced group. A representative part number is AUTOTECNICA DG1222947K.
The Standard Replacement section lists 2 options from HASTINGS / BALDWIN and MOPAR — built to original-equipment specification. HASTINGS / BALDWIN 20070 is listed in this group.
2 ungrouped parts are not assigned to a grade, with the same engine-level match.
Listed part numbers: HASTINGS / BALDWIN 20070, AUTOTECNICA DG1222947K and AUTOTECNICA RM1222960K, plus the other parts above.
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.
This group shows a single part: DORMAN 14131.
Fluid Cooler
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DORMAN Fits: 6.4L V8 | 918545 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| MOPAR Fits: 6.4L V8 | 68184883AA | 🇺🇸 US 🇨🇦 CA | Fits Heavy Duty HEMI MDS EngineRegular Cab Chassis Wheelbase 1or Heavy Duty HEMI MDS 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.
2 Fluid Cooler parts are listed for the 2018 Ram 4500, from DORMAN and MOPAR.
Part numbers include DORMAN 918545 and MOPAR 68184883AA.
Fluid Cooler Control Valve
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DORMAN Fits: 6.4L V8 | 624647 | 🇺🇸 US 🇨🇦 CA | View on Amazon |
This table covers the Fluid Cooler Control valves. Typical signs include a circuit that will not hold, a whistle, or a code for this valve. A stuck valve is often debris. Clean the ports before installing the new one.
This group shows a single part: DORMAN 624647.
Fluid Pan
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MOPAR Fits: 6.4L V8 | 68214905AA | 🇺🇸 US 🇨🇦 CA | Fits Heavy Duty HEMI MDS Engine.Except Power Take Off Preparation - Left Side | View on Amazon |
This table covers the pans that hold automatic-transmission fluid.
This group shows a single part: MOPAR 68214905AA.
Fluid Pan Gasket
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| FEL-PRO Fits: 6.4L V8 | TOS18770 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| MAHLE / CLEVITE Fits: 6.4L V8 | W33448 | 🇺🇸 US 🇨🇦 CA | Cork-RubberAutomatic Transmission Oil Pan Gasket | View on Amazon |
| VICTOR REINZ Fits: 6.4L V8 | 711953900 | 🇺🇸 US 🇨🇦 CA | Trans. code 66RFEEnhanced 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.
3 Fluid Pan Gasket parts are listed for the 2018 Ram 4500, from FEL-PRO, MAHLE / CLEVITE and VICTOR REINZ.
Listed part numbers: FEL-PRO TOS18770, MAHLE / CLEVITE W33448 and VICTOR REINZ 711953900.
Fluid Pan Magnet
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MOPAR Fits: 6.4L V8 | 68019660AA | 🇺🇸 US 🇨🇦 CA | Fits Heavy Duty HEMI MDS Engine.Power Take Off Prep - Left Side | View on Amazon |
This table covers the Fluid Pan magnets.
This group shows a single part: MOPAR 68019660AA.
Fluid Pump
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MOPAR Fits: 6.4L V8 | 68269470AB | 🇺🇸 US 🇨🇦 CA | Fits Heavy Duty HEMI MDS Engine.Power Take Off Prep - Left Side | 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.
One part is listed for the 2018 Ram 4500 — MOPAR 68269470AB.
Fluid Pump Gasket
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MOPAR Fits: 6.4L V8 | 68244638AA | 🇺🇸 US 🇨🇦 CA | Fits Heavy Duty HEMI MDS Engine.Power 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.
This group shows a single part: MOPAR 68244638AA.
Fluid Pump Repair Sleeve
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| NATIONAL Fits: 6.4L V8 | 99187 | 🇺🇸 US 🇨🇦 CA | with 6-Speed Chrysler 66RFE Transmission | View on Amazon |
| WJB / INMOTION PARTS Fits: 6.4L V8 | WS99187 | 🇺🇸 US 🇨🇦 CA | Frontwith 6-Speed Chrysler 66RFE Transmission | View on Amazon |
This table covers the precision wear sleeves used to restore a transmission pump seal surface.
2 Fluid Pump Repair Sleeve parts for the 2018 Ram 4500 come from 2 brands — NATIONAL and WJB / INMOTION PARTS.
Part numbers include NATIONAL 99187 and WJB / INMOTION PARTS WS99187.
Fluid Pump Seal
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| NATIONAL Fits: 6.4L V8 | 710907 | 🇺🇸 US 🇨🇦 CA | Frontwith 6-Speed Aisin AS66RC Transmission | View on Amazon |
| WJB / INMOTION PARTS Fits: 6.4L V8 | WS710907 | 🇺🇸 US 🇨🇦 CA | Frontwith 6-Speed Aisin AS66RC Transmission | 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.
2 Fluid Pump Seal parts for the 2018 Ram 4500 come from 2 brands — NATIONAL and WJB / INMOTION PARTS.
Listed part numbers: NATIONAL 710907 and WJB / INMOTION PARTS WS710907.
Fluid Temperature Sensor
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MOPAR Fits: 6.4L V8 | 68020004AA | 🇺🇸 US 🇨🇦 CA | Fits Heavy Duty HEMI MDS EngineExc. Power Take Off Prep - Left Side | View on Amazon |
| WELLS Fits: 6.4L V8 | 5S15266 | 🇺🇸 US 🇨🇦 CA | 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.
2 Fluid Temperature Sensor parts are listed for the 2018 Ram 4500, from MOPAR and WELLS.
This group includes MOPAR 68020004AA and WELLS 5S15266.
Manual Shaft Seal
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| NATIONAL Fits: 6.4L V8 | 221207 | 🇺🇸 US 🇨🇦 CA | Fits with 6-Speed Aisin AS66RC Transmission | View on Amazon |
| WJB / INMOTION PARTS Fits: 6.4L V8 | WS221207 | 🇺🇸 US 🇨🇦 CA | Fits with 6-Speed Aisin AS66RC Transmission | View on Amazon |
This table covers the seals at the Manual Shaft. 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.
2 Manual Shaft Seal parts for the 2018 Ram 4500 come from 2 brands — NATIONAL and WJB / INMOTION PARTS.
Listed part numbers: NATIONAL 221207 and WJB / INMOTION PARTS WS221207.
Output Shaft Bearing
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WJB / INMOTION PARTS Popular Fits: 6.4L V8 | RB6208 | 🇺🇸 US 🇨🇦 CA | 4 X 2with 6-Speed Chrysler 66RFE Transmission | View on Amazon |
| WJB / INMOTION PARTS Fits: 6.4L V8 | RB6009 | 🇺🇸 US 🇨🇦 CA | Outer4 X 4 | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| NATIONAL Popular Fits: 6.4L V8 | 109 | 🇺🇸 US 🇨🇦 CA | Outer4 X 4 | View on Amazon |
| NATIONAL Fits: 6.4L V8 | 208 | 🇺🇸 US 🇨🇦 CA | 4 X 2with 6-Speed Chrysler 66RFE Transmission | View on Amazon |
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| NATIONAL Fits: 6.4L V8 | 211 | 🇺🇸 US 🇨🇦 CA | Innerwith 6-Speed Chrysler 66RFE Transmission | View on Amazon |
| WJB / INMOTION PARTS Fits: 6.4L V8 | RB6211 | 🇺🇸 US 🇨🇦 CA | Innerwith 6-Speed Chrysler 66RFE Transmission | View on Amazon |
This table covers the Output Shaft bearings. Typical signs include a growl that rises with speed, or play in the shaft or hub. Set preload the way the notes specify. A dry or crushed bearing fails quickly.
6 Output Shaft Bearing parts for the 2018 Ram 4500 come from 2 brands — WJB / INMOTION PARTS and NATIONAL. The "Popular" part is WJB / INMOTION PARTS RB6208.
The Economy section: 2 options from WJB / INMOTION PARTS. WJB / INMOTION PARTS RB6208 is listed in this group.
Standard Replacement: 2 parts, from NATIONAL. A representative part number is NATIONAL 109.
2 further parts sit outside the graded sections, with the same engine-level match.
Part numbers include WJB / INMOTION PARTS RB6208, WJB / INMOTION PARTS RB6009 and NATIONAL 109, among others listed above.
Shift Cable
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MOPAR Fits: 6.4L V8 | 68257950AA | 🇺🇸 US 🇨🇦 CA | Fits Except Power Take Off Preparation - Left SideRegular Cab Chassis Wheelbase 1 | View on Amazon |
| MOPAR Fits: 6.4L V8 | 68257951AD | 🇺🇸 US 🇨🇦 CA | Fits Except Power Take Off Preparation - Left SideRegular Cab Chassis Wheelbase 1 | View on Amazon |
| MOPAR Fits: 6.4L V8 | 68259656AC | 🇺🇸 US 🇨🇦 CA | Fits Power Take Off Prep - Left SideRegular Cab Chassis Wheelbase 4 | View on Amazon |
| MOPAR Fits: 6.4L V8 | 68259656AD | 🇺🇸 US 🇨🇦 CA | Fits Power Take Off Prep - Left SideRegular Cab Chassis Wheelbase 3 | 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.
4 Shift Cable parts for the 2018 Ram 4500 come from MOPAR.
Listed part numbers: MOPAR 68257950AA, MOPAR 68257951AD and MOPAR 68259656AC, plus the other parts above.
Shift Shaft Seal
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SCHAEFFLER Fits: 6.4L V8 | SS2111 | 🇺🇸 US 🇨🇦 CA | Aisin trans.7 MM Width | View on Amazon |
This table covers the seals at the Shift Shaft. 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.
This group shows a single part: SCHAEFFLER SS2111.
Transmission Fluid
ATF +4
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| VALVOLINE Popular Fits: 6.4L V8 | 822348 | 🇺🇸 US 🇨🇦 CA | ATF + 41 Quart | View on Amazon |
| MOPAR Fits: 6.4L V8 | 68218057AC | 🇺🇸 US 🇨🇦 CA | ATF+4Quart | View on Amazon |
| PENTOSIN Fits: 6.4L V8 | 1058112 | 🇺🇸 US 🇨🇦 CA | ATF441 Liter | View on Amazon |
| PENTOSIN Fits: 6.4L V8 | 1058212 | 🇺🇸 US 🇨🇦 CA | ATF445 Liters | View on Amazon |
| VALVOLINE Fits: 6.4L V8 | 883587 | 🇺🇸 US 🇨🇦 CA | ATF + 41 Gallon | View on Amazon |
| VALVOLINE Fits: 6.4L V8 | 886642 | 🇺🇸 US 🇨🇦 CA | ATF + 45 Gallon | View on Amazon |
JWS 3309
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MOPAR Fits: 6.4L V8 | 5189977AA | 🇺🇸 US 🇨🇦 CA | Gallon | View on Amazon |
Multi-Vehicle
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| VALVOLINE Popular Fits: 6.4L V8 | VV3246 | 🇺🇸 US 🇨🇦 CA | Max Life Multi-Vehicle or Maxlife Multi-Vehicle Full Synthetic ATF1 Quart | View on Amazon |
| MOBIL Fits: 6.4L V8 | 126505 | 🇺🇸 US 🇨🇦 CA | Multi-Vehicle ATF | View on Amazon |
| VALVOLINE Fits: 6.4L V8 | 773775 | 🇺🇸 US 🇨🇦 CA | Max Life Multi-Vehicle or Maxlife Multi-Vehicle Full Synthetic ATF1 Gallon | View on Amazon |
| VALVOLINE Fits: 6.4L V8 | 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: 6.4L V8 | ATF0T4 | 🇺🇸 US 🇨🇦 CA | 1 QuartType T-IV | 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.
12 Transmission Fluid parts are listed for the 2018 Ram 4500, from VALVOLINE, MOPAR, PENTOSIN and 2 other brands. VALVOLINE 822348 carries the "Popular" badge.
In the ATF +4 grade, VALVOLINE, PENTOSIN and MOPAR supply 6 parts: grouped under the catalog's "ATF +4" designation — the notes column spells out what sets them apart. A representative part number is VALVOLINE 822348.
The JWS 3309 section lists 1 option from MOPAR — grouped under the catalog's "JWS 3309" designation — the notes column spells out what sets them apart. MOPAR 5189977AA is listed in this group.
In the Multi-Vehicle grade, VALVOLINE and MOBIL supply 4 parts: grouped under the catalog's "Multi-Vehicle" designation — the notes column spells out what sets them apart. A representative part number is VALVOLINE VV3246.
In the Type T-4 (Type T-IV) grade, AISIN supplies 1 part: grouped under the catalog's "Type T-4 (Type T-IV)" designation — the notes column spells out what sets them apart. A representative part number is AISIN ATF0T4.
Transmission Fluid Additive
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| LUBEGARD Popular Fits: 6.4L V8 | 19610 | 🇺🇸 US 🇨🇦 CA | Instant Shudder Fixx2 oz | View on Amazon |
| LUBEGARD Fits: 6.4L V8 | 60902 | 🇺🇸 US 🇨🇦 CA | Automatic Transmission Fluid Protectant10 oz | View on Amazon |
| LUBEGARD Fits: 6.4L V8 | 63010 | 🇺🇸 US 🇨🇦 CA | Platinum Universal ATF Protectant10 oz | View on Amazon |
| LUBEGARD Fits: 6.4L V8 | 63016 | 🇺🇸 US 🇨🇦 CA | Platinum Universal ATF Protectant15 oz | View on Amazon |
| LUBEGARD Fits: 6.4L V8 | 63032 | 🇺🇸 US 🇨🇦 CA | Platinum Universal ATF Protectant32 oz | View on Amazon |
This table covers the conditioners and additives used with this transmission fluid.
LUBEGARD supplies the 5 Transmission Fluid Additive parts for the 2018 Ram 4500. LUBEGARD 19610 carries the "Popular" badge.
Listed part numbers: LUBEGARD 19610, LUBEGARD 60902 and LUBEGARD 63010, plus the other parts above.
Transmission Mount
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SKP Fits: 6.4L V8 | SKM3376 | 🇺🇸 US 🇨🇦 CA | RearReuse OE Bracket | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ANCHOR Fits: 6.4L V8 | 3376 | 🇺🇸 US 🇨🇦 CA | RearReuse OE Bracket | 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.
2 Transmission Mount parts for the 2018 Ram 4500 come from 2 brands — SKP and ANCHOR.
The Economy section: 1 option from SKP. SKP SKM3376 is listed in this group.
Standard Replacement: 1 part, from ANCHOR. A representative part number is ANCHOR 3376.
Part numbers include SKP SKM3376 and ANCHOR 3376.
Transmission Mount Isolator
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MOPAR Fits: 6.4L V8 | 68090653AC | 🇺🇸 US 🇨🇦 CA | Fits Regular Cab Chassis Wheelbase 36 Speed Auto Aisin AS69RC HD Trans | View on Amazon |
| MOPAR Fits: 6.4L V8 | 68090654AC | 🇺🇸 US 🇨🇦 CA | Fits Regular Cab Chassis Wheelbase 36 Speed Auto Aisin AS69RC HD Trans | View on Amazon |
| MOPAR Fits: 6.4L V8 | 68090657AB | 🇺🇸 US 🇨🇦 CA | Fits Heavy Duty HEMI MDS EngineRegular Cab Chassis Wheelbase 1 | View on Amazon |
| MOPAR Fits: 6.4L V8 | 68090657AC | 🇺🇸 US 🇨🇦 CA | Fits Heavy Duty HEMI MDS EngineRegular Cab Chassis Wheelbase 1 | View on Amazon |
| MOPAR Fits: 6.4L V8 | 68090660AC | 🇺🇸 US 🇨🇦 CA | Fits Heavy Duty HEMI MDS EngineRegular Cab Chassis Wheelbase 1 | View on Amazon |
This table covers the isolators in a transmission mount.
MOPAR supplies the 5 Transmission Mount Isolator parts for the 2018 Ram 4500.
This group includes MOPAR 68090653AC, MOPAR 68090654AC and MOPAR 68090657AB and the remaining parts above.
Buying Automatic Transmission Parts for a 2018 Ram 4500
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. Every automatic transmission 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 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 2018 Ram 4500?
Our catalog currently lists 74 automatic transmission parts for the 2018 Ram 4500 across 27 subcategories and 21 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 2018 Ram 4500 engines?
Yes. Every automatic transmission 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 automatic transmission problems on a 2018 Ram 4500?
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 2018 Ram 4500 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 2018 Ram 4500?
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 2018 Ram 4500
Automatic Transmission Parts for Other Ram 4500 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.