Kenworth service campaign 46-020
What it says"KW: A new electric power take-off (ePTO) motor mount shim and an improved spline shaft are available for certain T680 BEV chassis with ePTO motors. NHTSA’s full summary ↓
Kenworth filed this with NHTSA as a service campaign dated Jun 27, 2026, received Jul 2, 2026. It names 2 model years (2023–2024). 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 communication"KW: A new electric power take-off (ePTO) motor mount shim and an improved spline shaft are available for certain T680 BEV chassis with ePTO motors. PB: A new electric power take-off (ePTO) motor mount shim and an improved spline shaft are available for certain Model 520 BEV and 579 BEV chassis with ePTO motors."
Document filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| 46-020 | Service campaign | Jun 27, 2026 | 11034286 | PDF, 755 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: 2023 Kenworth T680; 2024 Kenworth T680.
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.
Quote the number at the service desk. It is what the dealer’s system is keyed on.
Every manufacturer communication NHTSA holds for Kenworth, by the number printed on the letter.
Common questions
Source: NHTSA, 49 CFR 579.5Is Kenworth 46-020 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 46-020 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 46-020 cover?
The manufacturer filed it against 2 model years: 2023 Kenworth T680, 2024 Kenworth T680. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.