Ford bulletin TSB 26-2406
What it saysSome of the vehicles listed in the Model statement above may exhibit at least one of the following conditions: Poor shift quality Illuminated powertrain malfunction (wrench) indicator with diagnostic trouble codes… NHTSA’s full summary ↓
Ford filed this with NHTSA as a service bulletin dated Sep 5, 2026, received Sep 12, 2026, about the power train. It names 6 model years (2026). 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.
Get the next Ford bulletin for your model by email Weekly, only when something new is filed. Nothing else; one-click unsubscribe.
What the bulletin says
Source: NHTSA's summary of the manufacturer's communicationWhat it applies to, as NHTSA’s summary states it — build dates and equipment as the manufacturer filed them. The dealer checks the VIN and the build date on the door jamb; a vehicle outside the window is not covered by this bulletin.
Some of the vehicles listed in the Model statement above may exhibit at least one of the following conditions: Poor shift quality Illuminated powertrain malfunction (wrench) indicator with diagnostic trouble codes (DTCs) P2704 and P0771 stored in the powertrain control module (PCM)/transmission control module (TCM) This may be due to sticking valves in the main control valve body and/or damaged E clutch friction plates and/or E clutch steel plates. Additional model information: 6.7L Diesel Engine 7.3L Gas Engine 10R140 Automatic Transmission
Trouble codes it names: P0771 P2704
Document filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| TSB 26-2406 | Service bulletin | Sep 5, 2026 | 11037298 | PDF, 293 KB |
What the document itself lists
Parts the bulletin names
| Part number | Description | Qty | Find it |
|---|---|---|---|
| LC3Z-7H223-AA | Front Support Assembly Bolt Washers | — | eBay Motors → |
| LC3Z-7B031-B | Front Support-To-Case Seal | — | eBay Motors → |
| LC3Z-7A248-A | Torque Converter Hub Seal | — | eBay Motors → |
| LC3Z-7G091-D | Input Shaft Torque Converter (F0) Teflon Seals | — | eBay Motors → |
| LC3Z-7G091-C | Input Shaft Seals (F9) | — | eBay Motors → |
| LC3Z-7G091-B | Input Shaft Front (F2) Teflon Seals | — | eBay Motors → |
| LC3Z-7B399-A | Sun Gear No. 3 Shaft (F7) Seals | — | eBay Motors → |
| LC3Z-7G091-A | Input Shaft (F8) Seals | — | eBay Motors → |
| LC3Z-7G242-C | Input Shaft Small O-Ring Seals | — | eBay Motors → |
| LC3Z-7G242-D | Input Shaft Large O-Ring Seal | — | eBay Motors → |
| LC3Z-7A262-F | E Clutch Piston | — | eBay Motors → |
| LC3Z-7F227-A | E Clutch Balance Dam Outer Seal | — | eBay Motors → |
| LC3Z-7G242-A | E Clutch Piston And Balance Dam Inner Seal | — | eBay Motors → |
| LC3Z-7G242-B | E Clutch Piston And Balance Dam Inner Seal | — | eBay Motors → |
| LC3Z-7B164-C | E Clutch Friction Plates | — | eBay Motors → |
| LC3Z-7B442-E | E Clutch Steel Plates | — | eBay Motors → |
| W715131-S442 | Transmission Fluid Cooler Tube Bolt | — | eBay Motors → |
| W714824-S442 | Selector Lever Cable Bracket Bolts | — | eBay Motors → |
| W715618-S437 | Torque Converter Nuts | — | eBay Motors → |
| W718005-S900 | Exhaust Lower Downpipe-To-Catalyst And Particulate | — | eBay Motors → |
| W710356-S439 | Transmission Support Crossmember Bolts F-Super Duty | — | eBay Motors → |
| W520515-S440 | Transmission Support Crossmember Nuts F-Super Duty | — | eBay Motors → |
| W520115-S441 | Transmission Support Crossmember Nuts F-650, F-750 | — | eBay Motors → |
| TOOL-4201-C | Bar endplay | — | eBay Motors → |
Labour operations and the time the manufacturer allows
| Operation | Description | Time |
|---|---|---|
| 262406A | Repair Complete | 1.8 hrs |
| 262406B | — | 11.6 hrs |
| 262406C | Repair Complete | 1.8 hrs |
| 262406D | — | 12.8 hrs |
| 262406E | Repair Complete | 1.8 hrs |
| 262406F | 2026 F-Super Duty 4X2 6.7L 10R140: Retrieve DTCs, Perform The PCM/TCM Transmission… | 16.5 hrs |
| 262406G | Repair Complete | 1.8 hrs |
| 262406H | — | 16.8 hrs |
| 262406J | Repair Complete | 1.8 hrs |
| 262406K | — | 18.1 hrs |
Read by machine from the document NHTSA serves (7 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.
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.
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 themAlso filed against model years this site has no page for: 2026 Ford F-550 SD; 2026 Ford F-650 SD; 2026 Ford F-750 SD.
A vehicle page’s bulletin list shows the newest few communications filed against that model year; the count there is every one.
Email me new Ford bulletins for one of these models
A weekly email, sent only in a week when Ford files something new with NHTSA for the model you pick — service bulletins, campaigns, warranty extensions, over-the-air notices, every model year. Nothing else is sent; one-click unsubscribe in every message. Separate from recall alerts.
What owners reported
Source: NHTSA complaint databaseOwners of the 3 model years this bulletin names have filed 20 complaints with NHTSA since 2015. 3 of them name Power Train — 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.
I purchased my 2026 Ford F-350 Platinum from Sandy Sansing Ford Lincoln on June 11, 2026. I was not informed that the vehicle has two unrepaired/unresolved Recall's. Both of the recalls were issued in March, 2026. The Dealership had this vehicle on their lot from September, 2025 to the date that I purchased it.
2026 Ford F-350 Super Duty · Power Train · filed with NHTSA Jun 30, 2026 · ODI 11747451
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 group64 other manufacturer communications filed against these Ford models 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 |
|---|---|---|---|
| SSM 55218 | Service bulletin | Oct 6, 2026 | For 20202026 vehicles equipped with the 10R140 transmission, a new Transmission Clutch Circuit Leak Test has been introduced in the Ford… |
| TSB 26-2088 v2 | Service bulletin | Oct 1, 2026 | This bulletin supersedes 24-2249. Reason for update: update the claim quantity of the torque converter nuts, part number and claim quantity… |
| TSB 26-2252 | Service bulletin | Sep 5, 2026 | Some of the vehicles listed in the Model statement above may exhibit at least one of the following conditions: Poor shift quality Illumi… |
| 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… |
| SSM 54900 | Service bulletin | Jun 4, 2026 | Some 2023-2026 F-Super Duty vehicles equipped with a 10R100 or 10R140 transmission may exhibit an intermittent failure to engage forward or… |
| SSM 54899 | Service bulletin | Jun 4, 2026 | Some 2023-2026 F-53 Motorhome Chassis/F-59 Commercial Stripped Chassis and 2024-2026 F-650/F-750/E-Series vehicles equipped with a 6R140 tra… |
| 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 26-2251 | Service bulletin | May 28, 2026 | This article supersedes TSB 25-2545. Reason for update: To correct the current Pinpoint Test description. Some of the vehicles listed in the… |
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 26-2406 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 26-2406 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 26-2406 cover?
The manufacturer filed it against 6 model years: 2026 Ford F-250 Super Duty, 2026 Ford F-350 Super Duty, 2026 Ford F-450 Super Duty, 2026 Ford F-550 SD, 2026 Ford F-650 SD, 2026 Ford F-750 SD. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.