2018 Ram 2500 Automatic Transmission Parts

This table covers the pistons inside a transmission accumulator. Read more

4 Accumulator Piston parts for the 2018 Ram 2500 come from 3 brands — SONNAX, MOPAR and TRANSGO.

Listed part numbers: MOPAR 4446620AD, SONNAX 4489401K and SONNAX 4489401MK, plus the other parts above.

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. Read more

2 Accumulator Spring parts for the 2018 Ram 2500 come from MOPAR.

This group includes MOPAR 52119702AA and MOPAR 4471880.

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. Read more

DURA-BOND supplies the 4 Bushing parts for the 2018 Ram 2500.

This group includes DURA-BOND 37994TG, DURA-BOND 37993TG and DURA-BOND DOT13BR and the remaining parts above.

This table covers the Bushing kits. Read more

DURA-BOND supplies the 3 Bushing Kit parts for the 2018 Ram 2500.

Part numbers include DURA-BOND TK9, DURA-BOND TK9B and DURA-BOND TK9BHP.

This table covers the transmission or transfer-case housings. Read more

One part is listed for the 2018 Ram 2500 — MOPAR 5189883AC.

This table covers the Clutch drums. Read more

This group shows a single part: MOPAR 4799648AD.

This table covers the Clutch housings. Read more

SONNAX supplies both parts for the 2018 Ram 2500.

Listed part numbers: SONNAX 7296006K and SONNAX 7296016K.

This table covers the pistons that apply a clutch pack. Read more

2 Clutch Pack Piston parts for the 2018 Ram 2500 come from MOPAR.

This group includes MOPAR 4799650 and MOPAR 4799652.

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. Read more

This group shows a single part: MOPAR 52119929AB.

This table covers the clutch-plate packs inside the transmission or transfer case. Read more

4 Clutch Plate Pack parts are listed for the 2018 Ram 2500, from RAYBESTOS POWERTRAIN and SONNAX.

The Friction Plate Pack section lists 2 options from RAYBESTOS POWERTRAIN — grouped under the catalog's "Friction Plate Pack" designation — the notes column spells out what sets them apart. RAYBESTOS POWERTRAIN FRMCHRY01 is listed in this group.

In the Steel Plate Pack grade, RAYBESTOS POWERTRAIN supplies 1 part: grouped under the catalog's "Steel Plate Pack" designation — the notes column spells out what sets them apart. A representative part number is RAYBESTOS POWERTRAIN STMCHRY12.

1 ungrouped part is not assigned to a grade, with the same engine-level match.

This group includes RAYBESTOS POWERTRAIN FRMCHRY01, RAYBESTOS POWERTRAIN RGPZ272 and RAYBESTOS POWERTRAIN STMCHRY12 and the remaining parts above.

This table covers the Dipstick / Fluid Filler tubes. Read more

3 Dipstick / Fluid Filler Tube parts are listed for the 2018 Ram 2500, from MOPAR and DORMAN.

Listed part numbers: DORMAN 921239, MOPAR 53032517AG and MOPAR 4627910AC.

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. Read more

DURA-BOND supplies both parts for the 2018 Ram 2500.

Part numbers include DURA-BOND 37992 and DURA-BOND RP6189T.

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. Read more

5 Extension Housing Seal parts for the 2018 Ram 2500 come from 4 brands — NATIONAL, SCHAEFFLER, TIMKEN and 1 other brand. The "Popular" part is NATIONAL 710941.

Part numbers include NATIONAL 710941, NATIONAL 4741 and SCHAEFFLER SS3159, among others listed above.

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. Read more

23 Filter parts are listed for the 2018 Ram 2500, from ATP, VARIOUS MFR, VAICO and 6 other brands. ATP B200 carries the "Popular" badge.

The Basic Kit (Without Transmission Fluid) section lists 1 option from VAICO — grouped under the catalog's "Basic Kit (Without Transmission Fluid)" designation — the notes column spells out what sets them apart. VAICO V330525BEK is listed in this group.

In the Economy grade, VARIOUS MFR, AUTOTECNICA and SKP supply 6 parts: the catalog's value-priced group. A representative part number is AUTOTECNICA DG1222947K.

The Standard Replacement section lists 16 options from ATP, WIX, HASTINGS / BALDWIN and 3 other brands — built to original-equipment specification. ATP B200 is listed in this group.

This table covers the flexplates that connect the crankshaft to the torque converter. Read more

2 Flexplate parts for the 2018 Ram 2500 come from 2 brands — ATP and PIONEER.

Part numbers include ATP Z653 and PIONEER FRA599.

This table covers the Flexplate Mounting bolts. Read more

This group shows a single part: DORMAN 14131.

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. Read more

5 Fluid Cooler parts are listed for the 2018 Ram 2500, from DORMAN, GPD, MOPAR and 2 other brands. DORMAN 918545 carries the "Popular" badge.

This group includes DORMAN 918545, GPD 2611428 and MOPAR 68184883AA and the remaining parts above.

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. Read more

This group shows a single part: DORMAN 624647.

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. Read more

3 Fluid Cooler Line / Hose parts are listed for the 2018 Ram 2500, from DORMAN, MOPAR and TRANSTEC.

Listed part numbers: DORMAN 724227, MOPAR 68184916AI and TRANSTEC 71004002.

This table covers the pans that hold automatic-transmission fluid. Read more

5 Fluid Pan parts for the 2018 Ram 2500 come from 5 brands — SKP, DORMAN, MOPAR and 2 other brands. The "Popular" part is SKP SK265870.

Listed part numbers: SKP SK265870, DORMAN 265870 and MOPAR 4736676AA, plus the other parts above.

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. Read more

3 Fluid Pan Gasket parts are listed for the 2018 Ram 2500, from MOPAR, TRANSTEC and VICTOR REINZ.

Listed part numbers: MOPAR 68425659AA, TRANSTEC 49444827 and VICTOR REINZ 711953900.

This table covers the Fluid Pan magnets. Read more

This group shows a single part: MOPAR 68207789AA.

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. Read more

5 Fluid Pressure Sensor parts for the 2018 Ram 2500 come from 5 brands — MOPAR, NTK, ROSTRA and 2 other brands. The "Popular" part is MOPAR 4799758AD.

Part numbers include MOPAR 4799758AD, NTK AT0017 and ROSTRA 501040, among others listed above.

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. Read more

MOPAR supplies both parts for the 2018 Ram 2500.

Listed part numbers: MOPAR 68009879AF and MOPAR R8009879AE.

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. Read more

DURA-BOND supplies both parts for the 2018 Ram 2500.

Part numbers include DURA-BOND 37998TG and DURA-BOND 37998.

This table covers the precision wear sleeves used to restore a transmission pump seal surface. Read more

3 Fluid Pump Repair Sleeve parts for the 2018 Ram 2500 come from 3 brands — BCA, NATIONAL and WJB / INMOTION PARTS.

This group includes BCA NS88187, NATIONAL 99187 and WJB / INMOTION PARTS WS99187.

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. Read more

3 Fluid Pump Seal parts for the 2018 Ram 2500 come from 3 brands — BCA, NATIONAL and WJB / INMOTION PARTS.

Listed part numbers: BCA NS710557, NATIONAL 710557 and WJB / INMOTION PARTS WS710557.

This table covers the governors and modulators that control transmission shift pressure. Read more

2 Governor / Modulator parts are listed for the 2018 Ram 2500, from DORMAN and SONNAX.

Listed part numbers: DORMAN 601215 and SONNAX RFELB1.

This table covers the Input shafts. Read more

2 Input Shaft parts are listed for the 2018 Ram 2500, from MOPAR and SONNAX.

Part numbers include MOPAR 5114582AA and SONNAX 72670B01.

This table covers the seals at the Input 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. Read more

This group shows a single part: ELRING 096490.

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. Read more

2 Manual Shaft Seal parts for the 2018 Ram 2500 come from 2 brands — NATIONAL and WJB / INMOTION PARTS.

Part numbers include NATIONAL 710753 and WJB / INMOTION PARTS WS710753.

This table covers the O-rings and seals at this joint. Read more

This group shows a single part: ELRING 821430.

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. Read more

9 Output Shaft Bearing parts for the 2018 Ram 2500 come from 3 brands — WJB / INMOTION PARTS, NATIONAL and BCA. 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: 4 parts, from NATIONAL and BCA. A representative part number is NATIONAL 109.

3 further parts sit outside the graded sections, with the same engine-level match.

This group includes WJB / INMOTION PARTS RB6208, WJB / INMOTION PARTS RB6009 and NATIONAL 109 and the remaining parts above.

This table covers the rebuild kits for this assembly. Read more

4 Rebuild Kit parts for the 2018 Ram 2500 come from 2 brands — MOPAR and TRANSTEC.

In the Master Kit (Overhaul Kit + Friction & Steel Clutch Plates) grade, MOPAR supplies 1 part: grouped under the catalog's "Master Kit (Overhaul Kit + Friction & Steel Clutch Plates)" designation — the notes column spells out what sets them apart. A representative part number is MOPAR 68336843AB.

The Overhaul Kit (Gaskets, Seals, O-Rings & Sealing Rings) section lists 3 options from MOPAR and TRANSTEC — grouped under the catalog's "Overhaul Kit (Gaskets, Seals, O-Rings & Sealing Rings)" designation — the notes column spells out what sets them apart. MOPAR 00006841AA is listed in this group.

This group includes MOPAR 68336843AB, MOPAR 00006841AA and MOPAR 00006821AA and the remaining parts above.

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. Read more

This group shows a single part: MOPAR 68039341AB.

This table covers the Shift Improvement kits. Read more

4 Shift Improvement Kit parts are listed for the 2018 Ram 2500, from TRANSGO and SONNAX.

The Daily Driver section lists 2 options from SONNAX and TRANSGO — grouped for everyday commuting duty. SONNAX 22771TL12 is listed in this group.

In the High Performance grade, TRANSGO supplies 2 parts: engineered beyond original-equipment specification. A representative part number is TRANSGO 45RFEHD2A.

This group includes SONNAX 22771TL12, TRANSGO SK45RFEA and TRANSGO 45RFEHD2A and the remaining parts above.

This table covers the Shift Interlock 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. Read more

One part is listed for the 2018 Ram 2500 — DORMAN 924985.

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. Read more

6 Shift Solenoid parts for the 2018 Ram 2500 come from 4 brands — DORMAN, MOPAR, STANDARD MOTOR PRODUCTS and 1 other brand. The "Popular" part is DORMAN 609052.

Listed part numbers: DORMAN 609052, MOPAR 5170877AF and DORMAN 609040, plus the other parts above.

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. Read more

4 Solenoid Switch Valve Plug parts for the 2018 Ram 2500 come from TRANSGO.

Part numbers include TRANSGO RFESV420NT, TRANSGO RFESV453NT and TRANSGO RFESV420WT, among others listed above.

This table covers the Sun gears. Read more

This group shows a single part: MOPAR 52119771AA.

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. Read more

3 Torque Converter parts are listed for the 2018 Ram 2500, from MOPAR and TC REMANUFACTURING.

Part numbers include MOPAR R8143186AB, MOPAR R8143186AD and TC REMANUFACTURING R36BB.

This table covers the Torque Converter bolts. Read more

2 Torque Converter Bolt parts for the 2018 Ram 2500 come from 2 brands — ARP and DORMAN.

Part numbers include ARP 1477301 and DORMAN 14130.

This table covers the Torque Converter Clutch 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. Read more

This group shows a single part: TRANSGO RFETCCREGOS.