Kenworth service campaign 14-037
Kenworth filed this with NHTSA as a service campaign dated Aug 11, 2026, received Aug 20, 2026, about the unknown or other. It names 20 model years (2024–2027). A service campaign is not a safety recall — there is no NHTSA campaign number and no federal requirement — but it is usually work the manufacturer pays for on the vehicles it names; the dealer checks the VIN against the manufacturer’s list.
What the bulletin says
Source: NHTSA's summary of the manufacturer's communicationAn improved transmission bracket is now available for replacement on certain chassis equipped with a PACCAR TX-12 transmission, featuring a more durable design for enhanced long-term performance.
Document filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| 14-037 | Service campaign | Aug 11, 2026 | 11036288 | PDF, 401 KB |
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: 2024 Kenworth T280; 2025 Kenworth T280; 2026 Kenworth T280; 2027 Kenworth T280; 2024 Kenworth T380; 2025 Kenworth T380; 2026 Kenworth T380; 2027 Kenworth T380; 2024 Kenworth T480; 2025 Kenworth T480; 2026 Kenworth T480; 2027 Kenworth T480; 2024 Kenworth T680; 2025 Kenworth T680; 2026 Kenworth T680; 2027 Kenworth T680; 2024 Kenworth T880; 2025 Kenworth T880; 2026 Kenworth T880; 2027 Kenworth T880.
None of these model years has a page on this site (it covers EPA-certified cars, trucks and SUVs from 2016), so the bulletin is listed here on its own.
Common questions
Source: NHTSA, 49 CFR 579.5Is Kenworth 14-037 a recall?
No. A service campaign 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.
Is the 14-037 repair free?
A service campaign is usually paid by the manufacturer on the vehicles it names, within the terms and time limit the document sets; the dealer checks the VIN against the manufacturer’s list.
Which vehicles does 14-037 cover?
The manufacturer filed it against 20 model years: 2024 Kenworth T280, 2025 Kenworth T280, 2026 Kenworth T280, 2027 Kenworth T280, 2024 Kenworth T380, 2025 Kenworth T380 and more. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.