Ford bulletin 25B47 S1
What it saysCertain 2021-2024 Model Year Transit All-Wheel-Drive (AWD) Vehicles Transfer Case Replacement NHTSA’s full summary ↓
Ford filed this with NHTSA as a manufacturer communication dated Dec 15, 2025, received Jan 1, 2026, about the power train. It names 4 model years (2021–2024). A manufacturer communication 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 communicationCertain 2021-2024 Model Year Transit All-Wheel-Drive (AWD) Vehicles Transfer Case Replacement
Document filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| 25B47 S1 | Other | Dec 15, 2025 | 11026876 | PDF, 317 KB |
What the document itself lists
The manufacturer titles it “Customer Satisfaction Program 25B47 – Supplement #1”.
Parts the bulletin names
| Part number | Description | Qty | Find it |
|---|---|---|---|
| W714288-S439 | — | — | |
| W506434-S439 | — | — | |
| W505434-S439 | — | — | |
| W716331-S439 | — | — | |
| W718943-S439 | — | — | |
| W520215-S442 | — | — | |
| W711137-S442 | — | — | |
| LK4Z-9450-A | — | — | |
| W520514-S440 | — | — | |
| W711076-S442 | — | — | |
| W710660-S441 | — | — | |
| W712503-S440 | — | — | |
| LK4Z-7A195-D | Transfer Case Assembly | — | eBay Motors → |
Read by machine from the document NHTSA serves (8 pages), read Sep 30, 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.
Doing the repair yourself, or pricing it before the shop does? Search the part by fitment on eBay Motors — the listing and the price are the seller’s.
Find the body for the 2024 Transit →Affiliate disclosure: some links on this page are affiliate links. If you request a quote or buy through them we may earn a commission at no extra cost to you. Nothing on this page changes because of it.
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 4 model years this bulletin names have filed 152 complaints with NHTSA since 2015. 29 of them name Power Train, Structure — the same broad component group this bulletin is filed under. NHTSA groups complaints coarsely, so that means the same area of the vehicle, not necessarily the same fault.
The contact owns a 2023 Ford Transit. The contact received notification of NHTSA Campaign Number: 24V102000 (Power Train); however, the part to do the recall repair was unavailable. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was made aware of the issue.
2023 Ford Transit · Power Train · filed with NHTSA Sep 19, 2024 · ODI 11615491
The contact owns a 2021 Ford Transit. The contact stated that while driving 65 MPH in the middle lane, the vehicle lost motive power with the “WRENCH” warning light illuminated. The contact pulled over, turned off, and was able to restart the vehicle and continued driving. Two days later, the “WRENCH” light illuminated again.
2021 Ford Transit · Power Train · filed with NHTSA Aug 28, 2025 · ODI 11683666
While traveling straight at approximately 30 miles per hour, the front differential locked, causing the front wheels to lock and abruptly stopped the vehicle. Vehicle was towed to a Ford dealership, which verified the differential failed, and not due to lack of lubricant. There were no symptoms prior to failure.
2024 Ford Transit · Power Train · filed with NHTSA Jan 16, 2026 · ODI 11711509
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.
More bulletins about the power train
Source: same model, same component group41 other manufacturer communications filed against the Ford Transit under the same component group (power train), newest first. The eight newest are listed; the rest are on the Ford list.
| Number | Kind | Dated | NHTSA’s summary |
|---|---|---|---|
| TSB 26-2408 v2 | Service bulletin | Oct 22, 2026 | This bulletin supersedes 26-2309. Reason for update: update the Model section to remove Aviator 10R80, update theParts list to add 3.3L to W… |
| TSB 26-2431 | Service bulletin | Oct 21, 2026 | This bulletin supersedes 26-2226. Reason For Update: update the Service Procedure for 2021-2022 F-150 3.5L EcoBoost vehicles with the new Fo… |
| TSB 26-2408 | Service bulletin | Sep 22, 2026 | This bulletin supersedes 26-2309. Reason For Update: update the Model section to remove Aviator 10R80, update the Parts list to add 3.3L to… |
| SSM 55098 | Service bulletin | Aug 18, 2026 | Some 2013-2016 Super Duty vehicles equipped with a 6.7L diesel engine and 2015-2019 Transit vehicles equipped with a 3.2L diesel engine may… |
| TSB 26-2309 | Service bulletin | Jul 2, 2026 | This bulletin supersedes 26-2241. Reason For Update: update the parts list to correct the claim quantity of the part number JB3Z-4B496-B fro… |
| TSB 26-2281 | Service bulletin | Jun 12, 2026 | This bulletin supersedes 26-2091. Reason for update: To update the production cutoff date for Transit vehicles. Some of the vehicles listed… |
| TSB 26-2263 | Service bulletin | May 30, 2026 | This bulletin supersedes 26-2112. Reason For Update: add 2026 model year vehicles, update LV fluid XT-10-QLVC and CXT-10-LV6 description to… |
| TSB 26-2241 | Service bulletin | May 18, 2026 | This bulletin supersedes 25-2587. Reason For Update: update the Parts list to add the F-clutch friction plates HL3Z-7B164-D and the F-clutch… |
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 25B47 S1 a recall?
No. A manufacturer communication 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 25B47 S1 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 25B47 S1 cover?
The manufacturer filed it against 4 model years: 2024 Ford Transit, 2023 Ford Transit, 2022 Ford Transit, 2021 Ford Transit. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.