Western Star service campaign SF718
What it saysField Service Campaign for Transmission Oil Cooler Line Clearance NHTSA’s full summary ↓
Western Star filed this with NHTSA as a service campaign dated Jun 3, 2025, received Jun 27, 2025, about the power train — 3 documents under this number: SF718-OWN LTR, SF718-DLR LTR, SF718-Bulletin. It names 4 model years (2025–2026). 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 communicationField Service Campaign for Transmission Oil Cooler Line Clearance
Documents filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| SF718-OWN LTR | Service campaign | Jun 3, 2025 | 11019811 | PDF, 1,288 KB |
| SF718-DLR LTR | Service campaign | Jun 3, 2025 | 11019810 | PDF, 1,288 KB |
| SF718-Bulletin | Service campaign | Jun 3, 2025 | 11019809 | PDF, 1,288 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: 2025 Western Star 47X; 2026 Western Star 47X; 2025 Western Star 49X; 2026 Western Star 49X.
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 Western Star, by the number printed on the letter.
Common questions
Source: NHTSA, 49 CFR 579.5Is Western Star SF718 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 SF718 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 SF718 cover?
The manufacturer filed it against 4 model years: 2025 Western Star 47X, 2026 Western Star 47X, 2025 Western Star 49X, 2026 Western Star 49X. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.