9-Speed Automatic Transmission Assembly for 2020-2022 Ram ProMaster City
Product Notes Read before buying
This is a 9-speed automatic transmission for a front-wheel drive Ram ProMaster City with the 2.4L gasoline engine. Please verify your vehicle's specifications before ordering.
Voice or type your vehicle details and Wrenchy will confirm fitment in seconds.
Vehicle Fitment Guide
This part fits the following vehicles:
| SubmodelSUB- MODEL |
Body Style | Years | Engine | Attributes |
|---|---|---|---|---|
| Base | Mini Passenger Van | 2020 - 2022 | L4 2.4L | FWD | Automatic |
| SLT | Mini Passenger Van | 2020 - 2022 | L4 2.4L | FWD | Automatic |
| ST | Mini Passenger Van | 2020 - 2022 | L4 2.4L | FWD | Automatic |
| Tradesman | Mini Cargo Van | 2020 - 2022 | L4 2.4L | FWD | Automatic |
| Tradesman SLT | Mini Cargo Van | 2020 - 2021 | L4 2.4L | FWD | Automatic |
Know This Transmission Before You Buy
The research behind our purchase interview — recalls, bulletins and real install economics for this transmission family:
A quick look at your own vehicle makes sure the right transmission shows up:
- Confirm the vehicle has a physical, mechanical shifter cable (Park-by-Cable) rather than an electronic rotary dial (Park-by-Wire).
- Verify the vehicle is FWD and equipped with the 2.4L Tigershark engine.
- Locate and photograph the transmission ID tag on the side or top of the case to verify the part number.
What the install really takes — plan and budget with confidence:
Special tools this job needs:
- Mopar Dipstick Tool 10323A
- OBD2 Scan Tool with Live Data
- Bi-directional Scan Tool (Mopar wiTECH or equivalent)
- Transmission jack
- Engine support bar
Budget for these consumables at install:
- Mopar ZF 8 & 9 Speed ATF (P/N 68157995AB) or equivalent ZF Lifeguard 9 / Mopar SP-IV fluid (pale green)
- Front pump/torque converter seal (Mopar P/N or Timken 224660)
- Axle shaft seals
- Professional solvent-based cooler line flush (e.g., Lubegard Kooler Kleen)
What your vehicle’s computers will need after the swap:
What’s involved: TCM Adaptive Relearn (Quick Learn procedure)
A 'Quick Learn' procedure is mandatory after installation to reset clutch adaptive values. If the valve body or TCM are also replaced, a 'Valve Body Solenoid Learn' is required. This must be performed using a dealer-level scan tool like Mopar wiTECH.
Pro tips for a smooth first start-up — hand them to whoever does the install:
- Torque Converter Seating: Ensure the torque converter is fully seated (three distinct clicks/drops) before bolting to the engine to avoid cracking the front pump.
- Engine Alignment Dowels: Verify two alignment dowels are present in the engine block to prevent rapid input shaft bushing wear and P1DB7 codes.
- Fluid Level Checking: No underhood dipstick. Must use Mopar 10323A tool through the side check plug with fluid temperature strictly between 122°F and 140°F (50°C to 60°C).
- Shifter Cable Calibration: Carefully adjust and lock the mechanical Park-by-Cable linkage to prevent no-start conditions or gear mismatch.
- Mandatory Cooler Flush: Thoroughly flush lines to prevent old debris from contaminating the replacement unit's sensitive solenoids.
Easy to get right once you know them:
- Ordering for a Jeep Cherokee, Compass, Renegade, or Chrysler Pacifica/200 based on engine size alone (these use incompatible Park-by-Wire systems or AWD configurations).
- Skipping the mandatory scan-tool-based Quick Learn adaptive reset before driving.
- Using incorrect fluid such as standard ATF+4, Dexron VI, or generic multi-vehicle fluids instead of Mopar ZF 8 & 9 Speed ATF.
- Reusing a contaminated torque converter or failing to flush the transmission cooler lines.
- Assuming the swap is plug-and-play without planning for professional electronic calibration.
Not issues with the units on this page — the manufacturer documented these for every transmission of this family, wherever you buy one. Handy for your installer:
🔎 Recommended at install: Install updated service kit P/N 68732959AB if TCC slip or DTC P1DB7-00 occurs.
🔎 Recommended at install: Tighten lower transmission bolts to updated torque specifications.
🔎 Recommended at install: Update TCM software calibration.
🔎 Recommended at install: Verify fluid level and inspect for internal damage.
🔎 Recommended at install: Inspect wiring harness connector pins for damage or loose terminals.
🔎 Recommended at install: Inspect and secure internal pressure valve bolt to prevent drop in oil pressure.
Researched from factory recalls, TSBs and OEM service data (reference unit 400-11188-5027874). Unit-specific details — mileage, condition, warranty, freight — are covered in the checkout interview.
Policies, in plain English.
Shipping & Handling
- Ships by LTL freight on a pallet — a real freight truck, not a parcel van
- Your checkout freight quote covers delivery to your door (liftgate service included for residential addresses)
- The carrier calls ahead to schedule a delivery window — someone must be present to receive it
- Typically palletized and picked up within 2–3 business days; transit time depends on distance
120-Day Warranty
This part includes a 120-day warranty.
- If the part fails within the warranty window, we'll replace it or refund per the coverage terms
- Coverage is parts-only — installation labor is not included
- Warranty covers defects — not installation errors, misuse, or damage after installation
Your pre-purchase interview reviews these exact terms with you before anything is charged.
Returns (30 Days)
We accept returns of uninstalled parts within 30 days of delivery for this part.
- Defective parts: We will replace the part or issue a refund at our discretion
- Programming: "Needs to be programmed to my vehicle" is not a valid return reason. Many modules require dealer programming — we're happy to help connect you with resources if your dealer says it's not programmable
- Return shipping: This part ships by freight (LTL) — the part price is refundable per the terms above, but shipping costs are non-refundable and return freight follows the seller's return terms. Your pre-purchase interview walks through the exact numbers before you buy
- Parts must be returned in original packaging and unmodified condition
- Poorly packaged returns that arrive damaged will not be credited
Damaged in Shipping?
Freight damage is rare — and you're fully protected when you do two things at delivery:
- Inspect before you sign — you're allowed time to look the pallet over while the driver waits
- Write any damage on the delivery receipt before signing — that one line is what makes a freight claim succeed
- Severe damage? Refuse the delivery — it goes back at no cost to you and we make it right
- Photograph the pallet before unwrapping; report concealed damage within 24 hours of delivery
We handle the carrier claim — you just help document it. Your pre-purchase interview walks through this checklist too.
Order Cancellation
Cancel before shipment for a full refund. Once the pallet has been built, a preparation charge may apply — and once the freight carrier picks it up, shipping costs are non-refundable and standard return terms apply. Your pre-purchase interview shows the exact numbers before you pay.
Expert Guides
2020-2022 Ram ProMaster City 948TE Transmission: Problems, Identification, and Used Replacement
Learn how to identify the ZF 9HP48 transaxle, diagnose common shifting failures, and know when replacing it with a used OEM unit is the smartest choice.
Read Full Guide →Related Trouble Codes (OBD-II)
23 matching guidesIf your scan tool is showing one of these trouble codes, this part is a common fix. Each guide explains the code, how to diagnose it, and exactly what to replace.
Miscellaneous Information
OEM Part Numbers:
Ram: 68428562AA, R8428562AA
Fits Years: 2020 2021 2022
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Backed By The Selling Yard
This unit ships with the selling yard's 120-day warranty. Longer plans can be requested during checkout.
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