Ford bulletin TSB 25-2134
What it saysThis bulletin supersedes TSB 25-2024. NHTSA’s full summary ↓
Ford filed this with NHTSA as a service bulletin dated Apr 18, 2025, received Apr 23, 2025. It names 5 model years (2019–2023). A service bulletin is not a safety recall: it is the manufacturer telling its dealers how to diagnose or repair a condition, and whether the work is paid for depends on the warranty in force. Quoting the number at a service desk can save a diagnosis.
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What the bulletin says
Source: NHTSA's summary of the manufacturer's communicationWhat it applies to, as the document itself states it — the build window in the manufacturer’s own words, read by machine from the PDF NHTSA serves. The build date is on the certification label in the driver’s door jamb; the dealer settles a borderline vehicle by its VIN.
This bulletin supersedes TSB 25-2024. Reason for update: update the Part List and Service Procedure Some of the vehicles listed in the Model statement above may exhibit at least one of the following conditions: * Harsh engagement * Delayed engagement * Harsh shift * Delayed shift * Illuminated malfunction indicator lamp (MIL) with diagnostic trouble codes (DTC) P0751, P0752, P0756, P0757, P0761, P0762, P0766, P0767, P0771, P0772, P2700, P2701, P2702, P2703, P2704, P2705, P2707, P2708, P0729, P0731, P0732, P0733, P0734, P0735, P0736, P076F, P07D9, P07F6 and/or P07F7 stored in the powertrain control module (PCM) or transmission control module (TCM). This may be due to axial movement of the CDF clutch cylinder (7H351) sleeve causing hydraulic circuit leaks. NOTE: If internal transmission service is required to address a concern detected with the CDF clutch cylinder following this article, technicians should carefully inspect and replace other transmission components and flush transmission fluid cooler only as necessary to confirm proper function. Add a new line to the repair order to document any additional
Trouble codes it names: P0729 P0731 P0732 P0733 P0734 P0735 P0736 P0751 P0752 P0756 P0757 P0761 P0762 P0766 P0767 P076F P0771 P0772 P07D9 P07F6 P07F7 P2700 P2701 P2702 P2703 P2704 P2705 P2707 P2708
Document filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| TSB 25-2134 | Service bulletin | Apr 18, 2025 | 11017141 | PDF, 790 KB |
What the document itself lists
Parts the bulletin names — the first 40 it lists
| Part number | Description | Qty | Find it |
|---|---|---|---|
| HL3Z-7G199-A | Auxiliary Pump Tube Seal (If Equipped) | — | eBay Motors → |
| HL3Z-7A248-A | Torque Converter Seal | — | eBay Motors → |
| JL3Z-7N134-A | Front Support Bolts | — | eBay Motors → |
| LC3Z-7H223-A | Front Support Bolt Seals | — | eBay Motors → |
| HL3Z-7A248-G | Front Support To Case Seal | — | eBay Motors → |
| HL3Z-7G091-F | Input Shaft Seals (F2) | — | eBay Motors → |
| HL3Z-7B399-C | Sun Gear No. 3 Shaft Seals (F7) | — | eBay Motors → |
| HL3Z-7C099-A | C Clutch Balance Dam Inner Seal | — | eBay Motors → |
| HL3Z-7A548-B | C Clutch Balance Dam And Piston Outer Seal | — | eBay Motors → |
| HL3Z-7D404-A | C And D Clutch Piston Inner Seals | — | eBay Motors → |
| HL3Z-7A262-C | D Clutch Balance Dam | — | eBay Motors → |
| HL3Z-7D403-A | D Clutch Piston Outer Seal | — | eBay Motors → |
| HL3Z-7A548-G | F Clutch Balance Dam And Piston Outer Seal | — | eBay Motors → |
| HL3Z-7A548-A | F Clutch Balance Dam And Piston Inner Seal | — | eBay Motors → |
| HL3Z-7G091-G | Input Shaft To Sun Gear No. 3 Shaft Seals (F8) | — | eBay Motors → |
| HL3Z-7G091-C | Input Shaft Seal (F9) | — | eBay Motors → |
| JR3Z-7H351-B | CDF Cylinder | — | eBay Motors → |
| PC3Z-7B177-A | Clutch And Planetary Container Cylinder | — | eBay Motors → |
| HL3Z-7A191-B | Fluid Pan Gasket | — | eBay Motors → |
| HL3Z-7A098-A | Fluid Filter | — | eBay Motors → |
| 7T4Z-7Z302-A | Transmission Fluid Filter Seal | — | eBay Motors → |
| HL3Z-7J227-A | Auxiliary Pump Tube O-ring (If Equipped) | — | eBay Motors → |
| HL3Z-7B066-AB | A Pressure Plate | — | eBay Motors → |
| HL3Z-7B164-E | A Clutch Friction Plates | — | eBay Motors → |
| HL3Z-7F220-A | A Clutch Steel Plates | — | eBay Motors → |
| HL3Z-7B442-F | C Clutch Steel Plates | — | eBay Motors → |
| HL3Z-7B164-A | C Clutch Friction Plates | — | eBay Motors → |
| ML3Z-7B477-A | C Clutch Pressure Plate | — | eBay Motors → |
| HL3Z-7B442-D | D Clutch Steel Plates | — | eBay Motors → |
| HL3Z-7B164-C | D Clutch Friction Plates | — | eBay Motors → |
| HL3Z-7B066-E | D Clutch Pressure Plate | — | eBay Motors → |
| HL3Z-7B164-G | F Clutch Steel Plates | — | eBay Motors → |
| HL3Z-7B164-D | F Clutch Friction Plates | — | eBay Motors → |
| HL3Z-7B066-A | F Clutch Pressure Plate | — | eBay Motors → |
| HL3Z-7B066-AA | A Clutch Apply Plate | — | eBay Motors → |
| HL3Z-7B066-Z | A Clutch Apply Plate | — | eBay Motors → |
| HL3Z-7B066-Y | A Clutch Apply Plate | — | eBay Motors → |
| HL3Z-7B066-X | A Clutch Apply Plate | — | eBay Motors → |
| HL3Z-7B066-W | A Clutch Apply Plate | — | eBay Motors → |
| HL3Z-7H032-C | T-3 Bearing (Replace If T-3 Shim Is Replaced) | — | eBay Motors → |
Labour operations and the time the manufacturer allows
| Operation | Description | Time |
|---|---|---|
| 252134A | — | 1 hrs |
| 252134B | — | 12.6 hrs |
| 252134C | — | 13.7 hrs |
Read by machine from the document NHTSA serves (9 pages), read Sep 29, 2026. A part number is shown only where it matches Ford’s own catalogue shape, an operation only with its code and time, and a description only where the reader got it whole; anything it could not settle is left out, and the PDF is the record. Times are the manufacturer’s warranty allowances, not a quote. Listings and prices on eBay Motors are the seller’s.
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The summary is NHTSA’s abstract of the document, as filed under 49 CFR 579.5. One communication is usually filed as several documents — the bulletin, a dealer notice, an owner letter — and the number on any of them finds this page. A PDF link is shown only once NHTSA’s own server has been seen to serve that document; the rest are checked over the following nights. Quote the number at a service desk; it is what the dealer’s system is keyed on.
Model years it names
Source: as the manufacturer filed themA vehicle page’s bulletin list shows the newest few communications filed against that model year; the count there is every one.
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What owners reported
Source: NHTSA complaint databaseOwners of the 5 model years this bulletin names have filed 576 complaints with NHTSA since 2015.
A complaint is one owner’s account, not a defect finding, and a bulletin is not a recall. Nothing here says this bulletin was issued because of these complaints, or that the repair it describes fixed them. Complaint files on this site begin in 2015.
Quote the number at the service desk. It is what the dealer’s system is keyed on.
Every manufacturer communication NHTSA holds for Ford, by the number printed on the letter.
Common questions
Source: NHTSA, 49 CFR 579.5Is Ford TSB 25-2134 a recall?
No. A service bulletin is a manufacturer communication filed with NHTSA under 49 CFR 579.5; a safety recall carries an NHTSA campaign number (two digits, a letter, six digits) and a federal duty to repair for free. Check the vehicle’s recalls by VIN at nhtsa.gov/recalls, or on its page here.
Is the TSB 25-2134 repair free?
Not automatically. A service bulletin describes how to diagnose or repair a condition; who pays depends on the warranty in force, any extension, and the dealer. Quoting the number can save a diagnosis either way.
Which vehicles does TSB 25-2134 cover?
The manufacturer filed it against 5 model years: 2023 Ford Ranger, 2022 Ford Ranger, 2021 Ford Ranger, 2020 Ford Ranger, 2019 Ford Ranger. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone. The document itself sets the build window: 2019-2023 Ranger: built on or before 15 Aug 2022 — the build date is on the certification label in the driver’s door jamb.