2018 Ram 4500 Automatic Transmission Parts

Engine:

Showing parts for every engine. Select an engine to see only what fits.

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.

Automatic Transmission Assembly

Brand Part Number Markets Notes Buy
MOPAR Fits: 6.4L V8 RL300106AC
🇺🇸 US 🇨🇦 CA
Includes Torque Converter
Fitment notes — MOPAR RL300106AC
Includes Torque Converter
Fits:
Body 94Exc. Power Take Off Prep - Left Side6 Speed Auto Aisin AS66RC HD TransLt. Duty 4WD
or:
Exc. Power Take Off Prep - Left Side6 Speed Auto Aisin AS66RC HD TransLt. Duty 4WD
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This table covers the Automatic Transmission assemblies.

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
Fitment notes — MOPAR 68227783AA
Fits:
Heavy Duty HEMI MDS Engine.Regular Cab Chassis Wheelbase 36 Speed Auto Aisin AS66RC HD Trans
or:
Heavy Duty HEMI MDS Engine.Regular Cab Chassis Wheelbase 46 Speed Auto Aisin AS66RC HD Trans
or:
Heavy Duty HEMI MDS Engine.Crew Cab Wheelbase 46 Speed Auto Aisin AS66RC HD Trans
or:
Heavy Duty HEMI MDS Engine.Crew Cab197.4" Wheelbase6 Speed Auto Aisin AS66RC HD Trans
or:
Heavy Duty HEMI MDS Engine.Regular Cab Chassis Wheelbase 16 Speed Auto Aisin AS66RC HD Trans
or:
Heavy Duty HEMI MDS Engine.Regular Cab Chassis Wheelbase 26 Speed Auto Aisin AS66RC HD Trans
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This table covers the control units that command automatic-transmission shifts.

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
Fitment notes — MOPAR 68214914AA
Fits:
Heavy Duty HEMI MDS EngineExc. Power Take Off Prep - Left SideRegular Cab Chassis Wheelbase 16 Speed Auto Aisin AS66RC HD Trans
or:
Heavy Duty HEMI MDS EngineExc. Power Take Off Prep - Left SideRegular Cab Chassis Wheelbase 26 Speed Auto Aisin AS66RC HD Trans
or:
Heavy Duty HEMI MDS EngineExc. Power Take Off Prep - Left SideRegular Cab Chassis Wheelbase 36 Speed Auto Aisin AS66RC HD Trans
or:
Heavy Duty HEMI MDS EngineExc. Power Take Off Prep - Left SideRegular Cab Chassis Wheelbase 46 Speed Auto Aisin AS66RC HD Trans
or:
Heavy Duty HEMI MDS EnginePower Take Off Prep - Left SideRegular Cab Chassis Wheelbase 16 Speed Auto Aisin AS66RC HD Trans
or:
Heavy Duty HEMI MDS EnginePower Take Off Prep - Left SideRegular Cab Chassis Wheelbase 26 Speed Auto Aisin AS66RC HD Trans
or:
Heavy Duty HEMI MDS EnginePower Take Off Prep - Left SideRegular Cab Chassis Wheelbase 36 Speed Auto Aisin AS66RC HD Trans
or:
Heavy Duty HEMI MDS EnginePower Take Off Prep - Left Sid
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MOPAR Fits: 6.4L V8 68020040AA
🇺🇸 US 🇨🇦 CA
Fits Heavy Duty HEMI MDS EngineExc. Power Take Off Prep - Left Side
Fitment notes — MOPAR 68020040AA
Fits:
Heavy Duty HEMI MDS EngineExc. Power Take Off Prep - Left SideRegular Cab Chassis Wheelbase 16 Speed Auto Aisin AS66RC HD Trans
or:
Heavy Duty HEMI MDS EngineExc. Power Take Off Prep - Left SideRegular Cab Chassis Wheelbase 26 Speed Auto Aisin AS66RC HD Trans
or:
Heavy Duty HEMI MDS EngineExc. Power Take Off Prep - Left SideRegular Cab Chassis Wheelbase 36 Speed Auto Aisin AS66RC HD Trans
or:
Heavy Duty HEMI MDS EngineExc. Power Take Off Prep - Left SideRegular Cab Chassis Wheelbase 46 Speed Auto Aisin AS66RC HD Trans
or:
Heavy Duty HEMI MDS EnginePower Take Off Prep - Left SideRegular Cab Chassis Wheelbase 16 Speed Auto Aisin AS66RC HD Trans
or:
Heavy Duty HEMI MDS EnginePower Take Off Prep - Left SideRegular Cab Chassis Wheelbase 26 Speed Auto Aisin AS66RC HD Trans
or:
Heavy Duty HEMI MDS EnginePower Take Off Prep - Left SideRegular Cab Chassis Wheelbase 36 Speed Auto Aisin AS66RC HD Trans
or:
Heavy Duty HEMI MDS EnginePower Take Off Prep - Left Sid
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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.

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
Fitment notes — MOPAR 4627953AB
Fits:
Heavy Duty HEMI MDS Engine.Regular Cab Chassis Wheelbase 36 Speed Auto Aisin AS66RC HD Trans
or:
Heavy Duty HEMI MDS Engine.Regular Cab Chassis Wheelbase 46 Speed Auto Aisin AS66RC HD Trans
or:
Heavy Duty HEMI MDS Engine.Crew Cab Wheelbase 46 Speed Auto Aisin AS66RC HD Trans
or:
Heavy Duty HEMI MDS Engine.Regular Cab Chassis Wheelbase 16 Speed Auto Aisin AS66RC HD Trans
or:
Heavy Duty HEMI MDS Engine.Regular Cab Chassis Wheelbase 26 Speed Auto Aisin AS66RC HD Trans
or:
Heavy Duty HEMI MDS Engine.Body 94Crew Cab197.4" Wheelbase6 Speed Auto Aisin AS66RC HD Trans
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MOPAR Fits: 6.4L V8 68241491AA
🇺🇸 US 🇨🇦 CA
Fits Heavy Duty HEMI MDS Engine.Except Power Take Off Preparation - Left Side
Fitment notes — MOPAR 68241491AA
Fits:
Heavy Duty HEMI MDS Engine.Except Power Take Off Preparation - Left SideCrew Cab Wheelbase 46 Speed Auto Aisin AS66RC HD Trans
or:
Heavy Duty HEMI MDS Engine.Except Power Take Off Preparation - Left SideRegular Cab Chassis Wheelbase 16 Speed Auto Aisin AS66RC HD Trans
or:
Heavy Duty HEMI MDS Engine.Except Power Take Off Preparation - Left SideRegular Cab Chassis Wheelbase 26 Speed Auto Aisin AS66RC HD Trans
or:
Heavy Duty HEMI MDS Engine.Except Power Take Off Preparation - Left SideRegular Cab Chassis Wheelbase 36 Speed Auto Aisin AS66RC HD Trans
or:
Heavy Duty HEMI MDS Engine.Except Power Take Off Preparation - Left SideRegular Cab Chassis Wheelbase 46 Speed Auto Aisin AS66RC HD Trans
or:
Heavy Duty HEMI MDS Engine.Power Take Off Prep - Left SideCrew Cab Wheelbase 46 Speed Auto Aisin AS66RC HD Trans
or:
Heavy Duty HEMI MDS Engine.Power Take Off Prep - Left SideRegular Cab Chassis Wheelbase 16 Speed Auto Aisin AS66RC HD Trans
or:
Heavy Duty HEMI MDS Eng
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This table covers the Dipstick / Fluid Filler tubes.

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
Fitment notes — MOPAR 68250385AA
Fits:
Heavy Duty HEMI MDS EnginePower Take Off Prep - Left SideRegular Cab Chassis Wheelbase 16 Speed Auto Aisin AS66RC HD Trans
or:
Heavy Duty HEMI MDS EnginePower Take Off Prep - Left SideRegular Cab Chassis Wheelbase 26 Speed Auto Aisin AS66RC HD Trans
or:
Heavy Duty HEMI MDS EnginePower Take Off Prep - Left SideRegular Cab Chassis Wheelbase 36 Speed Auto Aisin AS66RC HD Trans
or:
Heavy Duty HEMI MDS EnginePower Take Off Prep - Left SideRegular Cab Chassis Wheelbase 46 Speed Auto Aisin AS66RC HD Trans
or:
Heavy Duty HEMI MDS EngineExc. Power Take Off Prep - Left SideCrew Cab Wheelbase 46 Speed Auto Aisin AS66RC HD Trans
or:
Heavy Duty HEMI MDS EnginePower Take Off Prep - Left SideCrew Cab Wheelbase 46 Speed Auto Aisin AS66RC HD Trans
or:
Heavy Duty HEMI MDS Engine197.4 WheelbaseExcept Power Take Off Preparation - Left SideCrew Cab Crew Cab197.4" Wheelbase6 Speed Auto Aisin AS66RC HD Trans
or:
Heavy Duty HEMI MDS EngineExcept Power Take Off Preparatio
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This table covers the Extension housings.

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
Fitment notes — MOPAR 68244610AA
Fits:
Heavy Duty HEMI MDS EngineExc. Power Take Off Prep - Left SideRegular Cab Chassis Wheelbase 16 Speed Auto Aisin AS66RC HD Trans
or:
Heavy Duty HEMI MDS EngineExc. Power Take Off Prep - Left SideRegular Cab Chassis Wheelbase 26 Speed Auto Aisin AS66RC HD Trans
or:
Heavy Duty HEMI MDS EngineExc. Power Take Off Prep - Left SideRegular Cab Chassis Wheelbase 36 Speed Auto Aisin AS66RC HD Trans
or:
Heavy Duty HEMI MDS EngineExc. Power Take Off Prep - Left SideRegular Cab Chassis Wheelbase 46 Speed Auto Aisin AS66RC HD Trans
or:
Heavy Duty HEMI MDS EnginePower Take Off Prep - Left SideRegular Cab Chassis Wheelbase 16 Speed Auto Aisin AS66RC HD Trans
or:
Heavy Duty HEMI MDS EnginePower Take Off Prep - Left SideRegular Cab Chassis Wheelbase 26 Speed Auto Aisin AS66RC HD Trans
or:
Heavy Duty HEMI MDS EnginePower Take Off Prep - Left SideRegular Cab Chassis Wheelbase 36 Speed Auto Aisin AS66RC HD Trans
or:
Heavy Duty HEMI MDS EnginePower Take Off Prep - Left Sid
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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.

Extension Housing Seal

Brand Part Number Markets Notes Buy
NATIONAL Popular Fits: 6.4L V8 710941
🇺🇸 US 🇨🇦 CA
4 X 4Trans. code 66RFE
Fitment notes — NATIONAL 710941
4 X 4Trans. code 66RFEChrysler trans.
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NATIONAL Fits: 6.4L V8 711100
🇺🇸 US 🇨🇦 CA
with Aisin AS69RC Transmission
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NATIONAL Fits: 6.4L V8 4741
🇺🇸 US 🇨🇦 CA
with 4x2with 6-Speed Chrysler 66RFE Transmission
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WJB / INMOTION PARTS Fits: 6.4L V8 WS711100
🇺🇸 US 🇨🇦 CA
with Aisin AS69RC Transmission
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WJB / INMOTION PARTS Fits: 6.4L V8 WS710941
🇺🇸 US 🇨🇦 CA
Width (In): 0.39400000000000002 In
Fitment notes — WJB / INMOTION PARTS WS710941
Width (In): 0.39400000000000002 In
4 X 4Trans. code 66RFEChrysler trans.
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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.

Filter

Economy

Brand Part Number Markets Notes Buy
AUTOTECNICA Fits: 6.4L V8 DG1222947K
🇺🇸 US 🇨🇦 CA
Includes:Transmission Filter (5013470AE) and Gasket
Fitment notes — AUTOTECNICA DG1222947K
Includes:Transmission Filter (5013470AE) and Gasket
Trans. code 66RFE
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AUTOTECNICA Fits: 6.4L V8 RM1222960K
🇺🇸 US 🇨🇦 CA
Trans. code AS66RCTransmission Filter (68224232AA) and Gasket
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VARIOUS MFR Fits: 6.4L V8 PT99613
🇺🇸 US 🇨🇦 CA
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Standard Replacement

Brand Part Number Markets Notes Buy
HASTINGS / BALDWIN Popular Fits: 6.4L V8 20070
🇺🇸 US 🇨🇦 CA
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MOPAR Popular Fits: 6.4L V8 68224232AA
🇺🇸 US 🇨🇦 CA
Fits Heavy Duty HEMI MDS Engine.Power Take Off Prep - Left Side
Fitment notes — MOPAR 68224232AA
Fits:
Heavy Duty HEMI MDS Engine.Power Take Off Prep - Left SideCrew Cab Wheelbase 46 Speed Auto Aisin AS66RC HD Trans
or:
Heavy Duty HEMI MDS Engine.Power Take Off Prep - Left SideRegular Cab Chassis Wheelbase 16 Speed Auto Aisin AS66RC HD Trans
or:
Heavy Duty HEMI MDS Engine.Power Take Off Prep - Left SideRegular Cab Chassis Wheelbase 26 Speed Auto Aisin AS66RC HD Trans
or:
Heavy Duty HEMI MDS Engine.Power Take Off Prep - Left SideRegular Cab Chassis Wheelbase 36 Speed Auto Aisin AS66RC HD Trans
or:
Heavy Duty HEMI MDS Engine.Power Take Off Prep - Left SideRegular Cab Chassis Wheelbase 46 Speed Auto Aisin AS66RC HD Trans
or:
Heavy Duty HEMI MDS Engine.Body 94Exc. Power Take Off Prep - Left SideCrew Cab197.4" Wheelbase6 Speed Auto Aisin AS66RC HD Trans
or:
Heavy Duty HEMI MDS Engine.Exc. Power Take Off Prep - Left SideCrew Cab Wheelbase 46 Speed Auto Aisin AS66RC HD Trans
or:
Heavy Duty HEMI MDS Engine.Exc. Power Take Off Prep - Left SideRegular Cab
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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
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WIX Fits: 6.4L V8 WL11218
🇺🇸 US
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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.

Flexplate Mounting Bolt

Brand Part Number Markets Notes Buy
DORMAN Fits: 6.4L V8 14131
🇺🇸 US 🇨🇦 CA
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This table covers the Flexplate Mounting bolts.

Fluid Cooler

Brand Part Number Markets Notes Buy
DORMAN Fits: 6.4L V8 918545
🇺🇸 US 🇨🇦 CA
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MOPAR Fits: 6.4L V8 68184883AA
🇺🇸 US 🇨🇦 CA
Fits Heavy Duty HEMI MDS EngineRegular Cab Chassis Wheelbase 1or Heavy Duty HEMI MDS Engine
Fitment notes — MOPAR 68184883AA
Fits:
Heavy Duty HEMI MDS EngineRegular Cab Chassis Wheelbase 1or Heavy Duty HEMI MDS EngineRegular Cab Chassis Wheelbase 2or Heavy Duty HEMI MDS EngineRegular Cab Chassis Wheelbase 3or Heavy Duty HEMI MDS EngineRegular Cab Chassis Wheelbase 4or Heavy Duty HEMI MDS EngineCrew Cab Wheelbase 4or Heavy Duty HEMI MDS EngineCrew Cab197.4" Wheelbase
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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.

Fluid Cooler Control Valve

Brand Part Number Markets Notes Buy
DORMAN Fits: 6.4L V8 624647
🇺🇸 US 🇨🇦 CA
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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.

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
Fitment notes — MOPAR 68214905AA
Fits:
Heavy Duty HEMI MDS Engine.Except Power Take Off Preparation - Left SideCrew Cab Wheelbase 46 Speed Auto Aisin AS66RC HD Trans
or:
Heavy Duty HEMI MDS Engine.Except Power Take Off Preparation - Left SideRegular Cab Chassis Wheelbase 16 Speed Auto Aisin AS66RC HD Trans
or:
Heavy Duty HEMI MDS Engine.Except Power Take Off Preparation - Left SideRegular Cab Chassis Wheelbase 26 Speed Auto Aisin AS66RC HD Trans
or:
Heavy Duty HEMI MDS Engine.Except Power Take Off Preparation - Left SideRegular Cab Chassis Wheelbase 36 Speed Auto Aisin AS66RC HD Trans
or:
Heavy Duty HEMI MDS Engine.Except Power Take Off Preparation - Left SideRegular Cab Chassis Wheelbase 46 Speed Auto Aisin AS66RC HD Trans
or:
Heavy Duty HEMI MDS Engine.Power Take Off Prep - Left SideCrew Cab Wheelbase 46 Speed Auto Aisin AS66RC HD Trans
or:
Heavy Duty HEMI MDS Engine.Power Take Off Prep - Left SideRegular Cab Chassis Wheelbase 16 Speed Auto Aisin AS66RC HD Trans
or:
Heavy Duty HEMI MDS Eng
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This table covers the pans that hold automatic-transmission fluid.

Fluid Pan Gasket

Brand Part Number Markets Notes Buy
FEL-PRO Fits: 6.4L V8 TOS18770
🇺🇸 US 🇨🇦 CA
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MAHLE / CLEVITE Fits: 6.4L V8 W33448
🇺🇸 US 🇨🇦 CA
Cork-RubberAutomatic Transmission Oil Pan Gasket
Fitment notes — MAHLE / CLEVITE W33448
Cork-RubberAutomatic Transmission Oil Pan Gasket
20 Bolt Holeswith AS69RC Transmission
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VICTOR REINZ Fits: 6.4L V8 711953900
🇺🇸 US 🇨🇦 CA
Trans. code 66RFEEnhanced Design
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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.

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
Fitment notes — MOPAR 68019660AA
Fits:
Heavy Duty HEMI MDS Engine.Power Take Off Prep - Left SideCrew Cab Wheelbase 46 Speed Auto Aisin AS66RC HD Trans
or:
Heavy Duty HEMI MDS Engine.Power Take Off Prep - Left SideRegular Cab Chassis Wheelbase 16 Speed Auto Aisin AS66RC HD Trans
or:
Heavy Duty HEMI MDS Engine.Power Take Off Prep - Left SideRegular Cab Chassis Wheelbase 26 Speed Auto Aisin AS66RC HD Trans
or:
Heavy Duty HEMI MDS Engine.Power Take Off Prep - Left SideRegular Cab Chassis Wheelbase 36 Speed Auto Aisin AS66RC HD Trans
or:
Heavy Duty HEMI MDS Engine.Power Take Off Prep - Left SideRegular Cab Chassis Wheelbase 46 Speed Auto Aisin AS66RC HD Trans
or:
Heavy Duty HEMI MDS Engine.Body 94Exc. Power Take Off Prep - Left SideCrew Cab197.4" Wheelbase6 Speed Auto Aisin AS66RC HD Trans
or:
Heavy Duty HEMI MDS Engine.Exc. Power Take Off Prep - Left SideCrew Cab Wheelbase 46 Speed Auto Aisin AS66RC HD Trans
or:
Heavy Duty HEMI MDS Engine.Exc. Power Take Off Prep - Left SideRegular Cab
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This table covers the Fluid Pan magnets.

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
Fitment notes — MOPAR 68269470AB
Fits:
Heavy Duty HEMI MDS Engine.Power Take Off Prep - Left SideCrew Cab Wheelbase 46 Speed Auto Aisin AS66RC HD Trans
or:
Heavy Duty HEMI MDS Engine.Power Take Off Prep - Left SideRegular Cab Chassis Wheelbase 16 Speed Auto Aisin AS66RC HD Trans
or:
Heavy Duty HEMI MDS Engine.Power Take Off Prep - Left SideRegular Cab Chassis Wheelbase 26 Speed Auto Aisin AS66RC HD Trans
or:
Heavy Duty HEMI MDS Engine.Power Take Off Prep - Left SideRegular Cab Chassis Wheelbase 36 Speed Auto Aisin AS66RC HD Trans
or:
Heavy Duty HEMI MDS Engine.Power Take Off Prep - Left SideRegular Cab Chassis Wheelbase 46 Speed Auto Aisin AS66RC HD Trans
or:
Heavy Duty HEMI MDS Engine.Body 94Exc. Power Take Off Prep - Left SideCrew Cab197.4" Wheelbase6 Speed Auto Aisin AS66RC HD Trans
or:
Heavy Duty HEMI MDS Engine.Exc. Power Take Off Prep - Left SideCrew Cab Wheelbase 46 Speed Auto Aisin AS66RC HD Trans
or:
Heavy Duty HEMI MDS Engine.Exc. Power Take Off Prep - Left SideRegular Cab
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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.

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
Fitment notes — MOPAR 68244638AA
Fits:
Heavy Duty HEMI MDS Engine.Power Take Off Prep - Left SideCrew Cab Wheelbase 46 Speed Auto Aisin AS66RC HD Trans
or:
Heavy Duty HEMI MDS Engine.Power Take Off Prep - Left SideRegular Cab Chassis Wheelbase 16 Speed Auto Aisin AS66RC HD Trans
or:
Heavy Duty HEMI MDS Engine.Power Take Off Prep - Left SideRegular Cab Chassis Wheelbase 26 Speed Auto Aisin AS66RC HD Trans
or:
Heavy Duty HEMI MDS Engine.Power Take Off Prep - Left SideRegular Cab Chassis Wheelbase 36 Speed Auto Aisin AS66RC HD Trans
or:
Heavy Duty HEMI MDS Engine.Power Take Off Prep - Left SideRegular Cab Chassis Wheelbase 46 Speed Auto Aisin AS66RC HD Trans
or:
Heavy Duty HEMI MDS Engine.Body 94Exc. Power Take Off Prep - Left SideCrew Cab197.4" Wheelbase6 Speed Auto Aisin AS66RC HD Trans
or:
Heavy Duty HEMI MDS Engine.Exc. Power Take Off Prep - Left SideCrew Cab Wheelbase 46 Speed Auto Aisin AS66RC HD Trans
or:
Heavy Duty HEMI MDS Engine.Exc. Power Take Off Prep - Left SideRegular Cab
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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.

Fluid Pump Repair Sleeve

Brand Part Number Markets Notes Buy
NATIONAL Fits: 6.4L V8 99187
🇺🇸 US 🇨🇦 CA
with 6-Speed Chrysler 66RFE Transmission
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WJB / INMOTION PARTS Fits: 6.4L V8 WS99187
🇺🇸 US 🇨🇦 CA
Frontwith 6-Speed Chrysler 66RFE Transmission
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This table covers the precision wear sleeves used to restore a transmission pump seal surface.

Fluid Pump Seal

Brand Part Number Markets Notes Buy
NATIONAL Fits: 6.4L V8 710907
🇺🇸 US 🇨🇦 CA
Frontwith 6-Speed Aisin AS66RC Transmission
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WJB / INMOTION PARTS Fits: 6.4L V8 WS710907
🇺🇸 US 🇨🇦 CA
Frontwith 6-Speed Aisin AS66RC Transmission
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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.

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
Fitment notes — MOPAR 68020004AA
Fits:
Heavy Duty HEMI MDS EngineExc. Power Take Off Prep - Left SideRegular Cab Chassis Wheelbase 16 Speed Auto Aisin AS66RC HD Trans
or:
Heavy Duty HEMI MDS EngineExc. Power Take Off Prep - Left SideRegular Cab Chassis Wheelbase 26 Speed Auto Aisin AS66RC HD Trans
or:
Heavy Duty HEMI MDS EngineExc. Power Take Off Prep - Left SideRegular Cab Chassis Wheelbase 36 Speed Auto Aisin AS66RC HD Trans
or:
Heavy Duty HEMI MDS EngineExc. Power Take Off Prep - Left SideRegular Cab Chassis Wheelbase 46 Speed Auto Aisin AS66RC HD Trans
or:
Heavy Duty HEMI MDS EnginePower Take Off Prep - Left SideRegular Cab Chassis Wheelbase 16 Speed Auto Aisin AS66RC HD Trans
or:
Heavy Duty HEMI MDS EnginePower Take Off Prep - Left SideRegular Cab Chassis Wheelbase 26 Speed Auto Aisin AS66RC HD Trans
or:
Heavy Duty HEMI MDS EnginePower Take Off Prep - Left SideRegular Cab Chassis Wheelbase 36 Speed Auto Aisin AS66RC HD Trans
or:
Heavy Duty HEMI MDS EnginePower Take Off Prep - Left Sid
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WELLS Fits: 6.4L V8 5S15266
🇺🇸 US 🇨🇦 CA
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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.

Manual Shaft Seal

Brand Part Number Markets Notes Buy
NATIONAL Fits: 6.4L V8 221207
🇺🇸 US 🇨🇦 CA
Fits with 6-Speed Aisin AS66RC Transmission
Fitment notes — NATIONAL 221207
Fits:
with 6-Speed Aisin AS66RC Transmission
or:
with 6-Speed Aisin AS69RC Transmission
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WJB / INMOTION PARTS Fits: 6.4L V8 WS221207
🇺🇸 US 🇨🇦 CA
Fits with 6-Speed Aisin AS66RC Transmission
Fitment notes — WJB / INMOTION PARTS WS221207
Fits:
with 6-Speed Aisin AS66RC Transmission
or:
with 6-Speed Aisin AS69RC Transmission
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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.

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
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WJB / INMOTION PARTS Fits: 6.4L V8 RB6009
🇺🇸 US 🇨🇦 CA
Outer4 X 4
Fitment notes — WJB / INMOTION PARTS RB6009
Outer4 X 4with 6-Speed Chrysler 66RFE Transmission
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Standard Replacement

Brand Part Number Markets Notes Buy
NATIONAL Popular Fits: 6.4L V8 109
🇺🇸 US 🇨🇦 CA
Outer4 X 4
Fitment notes — NATIONAL 109
Outer4 X 4with 6-Speed Chrysler 66RFE Transmission
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NATIONAL Fits: 6.4L V8 208
🇺🇸 US 🇨🇦 CA
4 X 2with 6-Speed Chrysler 66RFE Transmission
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Brand Part Number Markets Notes Buy
NATIONAL Fits: 6.4L V8 211
🇺🇸 US 🇨🇦 CA
Innerwith 6-Speed Chrysler 66RFE Transmission
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WJB / INMOTION PARTS Fits: 6.4L V8 RB6211
🇺🇸 US 🇨🇦 CA
Innerwith 6-Speed Chrysler 66RFE Transmission
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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.

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
Fitment notes — MOPAR 68257950AA
Fits:
Except Power Take Off Preparation - Left SideRegular Cab Chassis Wheelbase 16 Speed Auto Aisin AS66RC HD Trans
or:
Except Power Take Off Preparation - Left SideRegular Cab Chassis Wheelbase 36 Speed Auto Aisin AS66RC HD Trans
or:
Except Power Take Off Preparation - Left SideRegular Cab Chassis Wheelbase 26 Speed Auto Aisin AS66RC HD Trans
or:
Except Power Take Off Preparation - Left SideRegular Cab Chassis Wheelbase 46 Speed Auto Aisin AS66RC HD Trans
or:
Except Power Take Off Preparation - Left SideCrew Cab Wheelbase 46 Speed Auto Aisin AS66RC HD Trans
or:
Body 94Except Power Take Off Preparation - Left SideCrew Cab197.4" Wheelbase6 Speed Auto Aisin AS66RC HD Trans
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MOPAR Fits: 6.4L V8 68257951AD
🇺🇸 US 🇨🇦 CA
Fits Except Power Take Off Preparation - Left SideRegular Cab Chassis Wheelbase 1
Fitment notes — MOPAR 68257951AD
Fits:
Except Power Take Off Preparation - Left SideRegular Cab Chassis Wheelbase 16 Speed Auto Aisin AS69RC HD Trans
or:
Except Power Take Off Preparation - Left SideRegular Cab Chassis Wheelbase 26 Speed Auto Aisin AS69RC HD Trans
or:
Except Power Take Off Preparation - Left SideRegular Cab Chassis Wheelbase 36 Speed Auto Aisin AS69RC HD Trans
or:
Except Power Take Off Preparation - Left SideRegular Cab Chassis Wheelbase 46 Speed Auto Aisin AS69RC HD Trans
or:
Except Power Take Off Preparation - Left SideCrew Cab Wheelbase 46 Speed Auto Aisin AS69RC HD Trans
or:
Body 94Except Power Take Off Preparation - Left SideCrew Cab197.4" Wheelbase6 Speed Auto Aisin AS69RC HD Trans
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MOPAR Fits: 6.4L V8 68259656AC
🇺🇸 US 🇨🇦 CA
Fits Power Take Off Prep - Left SideRegular Cab Chassis Wheelbase 4
Fitment notes — MOPAR 68259656AC
Fits:
Power Take Off Prep - Left SideRegular Cab Chassis Wheelbase 46 Speed Auto Aisin AS69RC HD Trans
or:
Power Take Off Prep - Left SideRegular Cab Chassis Wheelbase 16 Speed Auto Aisin AS69RC HD TransLT. Duty 4WD
or:
Power Take Off Prep - Left SideRegular Cab Chassis Wheelbase 26 Speed Auto Aisin AS69RC HD Trans
or:
Power Take Off Prep - Left SideCrew Cab Wheelbase 46 Speed Auto Aisin AS69RC HD Trans
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MOPAR Fits: 6.4L V8 68259656AD
🇺🇸 US 🇨🇦 CA
Fits Power Take Off Prep - Left SideRegular Cab Chassis Wheelbase 3
Fitment notes — MOPAR 68259656AD
Fits:
Power Take Off Prep - Left SideRegular Cab Chassis Wheelbase 36 Speed Auto Aisin AS69RC HD Trans
or:
Power Take Off Prep - Left SideRegular Cab Chassis Wheelbase 46 Speed Auto Aisin AS69RC HD Trans
or:
Power Take Off Prep - Left SideRegular Cab Chassis Wheelbase 16 Speed Auto Aisin AS69RC HD Trans
or:
Power Take Off Prep - Left SideRegular Cab Chassis Wheelbase 26 Speed Auto Aisin AS69RC HD Trans
or:
Power Take Off Prep - Left SideCrew Cab Wheelbase 46 Speed Auto Aisin AS69RC HD Trans
or:
Power Take Off Prep - Left Side, Body 94Crew Cab197.4" Wheelbase6 Speed Auto Aisin AS69RC HD Trans
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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.

Shift Shaft Seal

Brand Part Number Markets Notes Buy
SCHAEFFLER Fits: 6.4L V8 SS2111
🇺🇸 US 🇨🇦 CA
Aisin trans.7 MM Width
Fitment notes — SCHAEFFLER SS2111
Aisin trans.7 MM Width22.25 mm Outside DiameterNitrile12 MM Shaft Diameter
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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.

Transmission Fluid

ATF +4

Brand Part Number Markets Notes Buy
VALVOLINE Popular Fits: 6.4L V8 822348
🇺🇸 US 🇨🇦 CA
ATF + 41 Quart
Fitment notes — VALVOLINE 822348
ATF + 41 Quart
Trans. code 66RFE
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MOPAR Fits: 6.4L V8 68218057AC
🇺🇸 US 🇨🇦 CA
ATF+4Quart
Fitment notes — MOPAR 68218057AC
ATF+4Quart32 oz
Fits:
Regular Cab Chassis Wheelbase 3or Regular Cab Chassis Wheelbase 4or Regular Cab Chassis Wheelbase 1or Regular Cab Chassis Wheelbase 2or Crew Cab Wheelbase 4or Body 94Crew Cab197.4" Wheelbase
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PENTOSIN Fits: 6.4L V8 1058112
🇺🇸 US 🇨🇦 CA
ATF441 Liter
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PENTOSIN Fits: 6.4L V8 1058212
🇺🇸 US 🇨🇦 CA
ATF445 Liters
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VALVOLINE Fits: 6.4L V8 883587
🇺🇸 US 🇨🇦 CA
ATF + 41 Gallon
Fitment notes — VALVOLINE 883587
ATF + 41 Gallon
Trans. code 66RFE
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VALVOLINE Fits: 6.4L V8 886642
🇺🇸 US 🇨🇦 CA
ATF + 45 Gallon
Fitment notes — VALVOLINE 886642
ATF + 45 Gallon
Trans. code 66RFE
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JWS 3309

Brand Part Number Markets Notes Buy
MOPAR Fits: 6.4L V8 5189977AA
🇺🇸 US 🇨🇦 CA
Gallon
Fitment notes — MOPAR 5189977AA
Gallon
Fits:
Heavy Duty HEMI MDS Engine.Power Take Off Prep - Left SideCrew Cab Wheelbase 46 Speed Auto Aisin AS66RC HD Trans
or:
Heavy Duty HEMI MDS Engine.Power Take Off Prep - Left SideCrew Cab197.4" Wheelbase6 Speed Auto Aisin AS66RC HD Trans
or:
Heavy Duty HEMI MDS Engine.Power Take Off Prep - Left SideRegular Cab Chassis Wheelbase 16 Speed Auto Aisin AS66RC HD Trans
or:
Heavy Duty HEMI MDS Engine.Power Take Off Prep - Left SideRegular Cab Chassis Wheelbase 26 Speed Auto Aisin AS66RC HD Trans
or:
Heavy Duty HEMI MDS Engine.Power Take Off Prep - Left SideRegular Cab Chassis Wheelbase 36 Speed Auto Aisin AS66RC HD Trans
or:
Heavy Duty HEMI MDS Engine.Power Take Off Prep - Left SideRegular Cab Chassis Wheelbase 46 Speed Auto Aisin AS66RC HD Trans
or:
Heavy Duty HEMI MDS Engine.197.4" WheelbaseExcept Power Take Off Prep - Left SideCrew Cab6 Speed Auto Aisin AS66RC HD Trans
or:
Heavy Duty HEMI MDS Engine.Except Power Take Off Prep - Left SideCrew Ca
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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
Fitment notes — VALVOLINE VV3246
Max Life Multi-Vehicle or Maxlife Multi-Vehicle Full Synthetic ATF1 QuartDEXRON VI, MERCON LV, DEX/MERC
Trans. code AS66RC or Trans. code AS69RCProduct Not Applicable For California
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MOBIL Fits: 6.4L V8 126505
🇺🇸 US 🇨🇦 CA
Multi-Vehicle ATF
Fitment notes — MOBIL 126505
Multi-Vehicle ATF
Trans. code AS66RC
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VALVOLINE Fits: 6.4L V8 773775
🇺🇸 US 🇨🇦 CA
Max Life Multi-Vehicle or Maxlife Multi-Vehicle Full Synthetic ATF1 Gallon
Fitment notes — VALVOLINE 773775
Max Life Multi-Vehicle or Maxlife Multi-Vehicle Full Synthetic ATF1 Gallon
Trans. code AS66RC or Trans. code AS69RCProduct Not Applicable For California
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VALVOLINE Fits: 6.4L V8 881051
🇺🇸 US 🇨🇦 CA
Maxlife Multi-Vehicle Full Synthetic ATF5 Gallon Bay Box
Fitment notes — VALVOLINE 881051
Maxlife Multi-Vehicle Full Synthetic ATF5 Gallon Bay Box
Trans. code AS66RC or Trans. code AS69RCProduct Not Applicable For California
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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
Fitment notes — AISIN ATF0T4
1 QuartType T-IV1 Quart
Trans. code AS69RCAisin trans.
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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.

Transmission Fluid Additive

Brand Part Number Markets Notes Buy
LUBEGARD Popular Fits: 6.4L V8 19610
🇺🇸 US 🇨🇦 CA
Instant Shudder Fixx2 oz
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LUBEGARD Fits: 6.4L V8 60902
🇺🇸 US 🇨🇦 CA
Automatic Transmission Fluid Protectant10 oz
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LUBEGARD Fits: 6.4L V8 63010
🇺🇸 US 🇨🇦 CA
Platinum Universal ATF Protectant10 oz
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LUBEGARD Fits: 6.4L V8 63016
🇺🇸 US 🇨🇦 CA
Platinum Universal ATF Protectant15 oz
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LUBEGARD Fits: 6.4L V8 63032
🇺🇸 US 🇨🇦 CA
Platinum Universal ATF Protectant32 oz
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This table covers the conditioners and additives used with this transmission fluid.

Transmission Mount

Economy

Brand Part Number Markets Notes Buy
SKP Fits: 6.4L V8 SKM3376
🇺🇸 US 🇨🇦 CA
RearReuse OE Bracket
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Standard Replacement

Brand Part Number Markets Notes Buy
ANCHOR Fits: 6.4L V8 3376
🇺🇸 US 🇨🇦 CA
RearReuse OE Bracket
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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.

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
Fitment notes — MOPAR 68090653AC
Fits:
Regular Cab Chassis Wheelbase 36 Speed Auto Aisin AS69RC HD Trans
or:
Regular Cab Chassis Wheelbase 46 Speed Auto Aisin AS69RC HD Trans
or:
Regular Cab Chassis Wheelbase 16 Speed Auto Aisin AS69RC HD Trans
or:
Regular Cab Chassis Wheelbase 26 Speed Auto Aisin AS69RC HD Trans
or:
Crew Cab Wheelbase 46 Speed Auto Aisin AS69RC HD Trans
or:
Body 94Crew Cab197.4" Wheelbase6 Speed Auto Aisin AS69RC HD Trans
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MOPAR Fits: 6.4L V8 68090654AC
🇺🇸 US 🇨🇦 CA
Fits Regular Cab Chassis Wheelbase 36 Speed Auto Aisin AS69RC HD Trans
Fitment notes — MOPAR 68090654AC
Fits:
Regular Cab Chassis Wheelbase 36 Speed Auto Aisin AS69RC HD Trans
or:
Regular Cab Chassis Wheelbase 46 Speed Auto Aisin AS69RC HD Trans
or:
Regular Cab Chassis Wheelbase 16 Speed Auto Aisin AS69RC HD Trans
or:
Regular Cab Chassis Wheelbase 26 Speed Auto Aisin AS69RC HD Trans
or:
Crew Cab Wheelbase 46 Speed Auto Aisin AS69RC HD Trans
or:
Body 94Crew Cab197.4" Wheelbase6 Speed Auto Aisin AS69RC HD Trans
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MOPAR Fits: 6.4L V8 68090657AB
🇺🇸 US 🇨🇦 CA
Fits Heavy Duty HEMI MDS EngineRegular Cab Chassis Wheelbase 1
Fitment notes — MOPAR 68090657AB
Fits:
Heavy Duty HEMI MDS EngineRegular Cab Chassis Wheelbase 16 Speed Auto Aisin AS66RC HD Trans
or:
Heavy Duty HEMI MDS EngineRegular Cab Chassis Wheelbase 26 Speed Auto Aisin AS66RC HD Trans
or:
Heavy Duty HEMI MDS EngineRegular Cab Chassis Wheelbase 36 Speed Auto Aisin AS66RC HD Trans
or:
Heavy Duty HEMI MDS EngineRegular Cab Chassis Wheelbase 46 Speed Auto Aisin AS66RC HD Trans
or:
Heavy Duty HEMI MDS EngineCrew Cab Wheelbase 46 Speed Auto Aisin AS66RC HD Trans
or:
Heavy Duty HEMI MDS EngineBody 94Crew Cab197.4" Wheelbase6 Speed Auto Aisin AS66RC HD Trans
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MOPAR Fits: 6.4L V8 68090657AC
🇺🇸 US 🇨🇦 CA
Fits Heavy Duty HEMI MDS EngineRegular Cab Chassis Wheelbase 1
Fitment notes — MOPAR 68090657AC
Fits:
Heavy Duty HEMI MDS EngineRegular Cab Chassis Wheelbase 16 Speed Auto Aisin AS66RC HD Trans
or:
Heavy Duty HEMI MDS EngineRegular Cab Chassis Wheelbase 26 Speed Auto Aisin AS66RC HD Trans
or:
Heavy Duty HEMI MDS EngineRegular Cab Chassis Wheelbase 36 Speed Auto Aisin AS66RC HD Trans
or:
Heavy Duty HEMI MDS EngineRegular Cab Chassis Wheelbase 46 Speed Auto Aisin AS66RC HD Trans
or:
Heavy Duty HEMI MDS EngineCrew Cab Wheelbase 46 Speed Auto Aisin AS66RC HD Trans
or:
Heavy Duty HEMI MDS EngineBody 94Crew Cab197.4" Wheelbase6 Speed Auto Aisin AS66RC HD Trans
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MOPAR Fits: 6.4L V8 68090660AC
🇺🇸 US 🇨🇦 CA
Fits Heavy Duty HEMI MDS EngineRegular Cab Chassis Wheelbase 1
Fitment notes — MOPAR 68090660AC
Fits:
Heavy Duty HEMI MDS EngineRegular Cab Chassis Wheelbase 16 Speed Auto Aisin AS66RC HD Trans
or:
Heavy Duty HEMI MDS EngineRegular Cab Chassis Wheelbase 26 Speed Auto Aisin AS66RC HD Trans
or:
Heavy Duty HEMI MDS EngineRegular Cab Chassis Wheelbase 36 Speed Auto Aisin AS66RC HD Trans
or:
Heavy Duty HEMI MDS EngineRegular Cab Chassis Wheelbase 46 Speed Auto Aisin AS66RC HD Trans
or:
Heavy Duty HEMI MDS EngineCrew Cab Wheelbase 46 Speed Auto Aisin AS66RC HD Trans
or:
Heavy Duty HEMI MDS EngineBody 94Crew Cab197.4" Wheelbase6 Speed Auto Aisin AS66RC HD Trans
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This table covers the isolators in a transmission mount.

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.