Daimler Truck warranty extension WI24-019
What it saysWarranty Information letter for Detroit Line or Line Seal, High Pressure Fuel Injector Standard Repair Time Updates NHTSA’s full summary ↓
Daimler Truck filed this with NHTSA as a warranty extension dated Nov 11, 2024, received Dec 4, 2024, about the engine. It names 210 model years across Freightliner, Western Star, Fccc and Thomas Built Buses (2016–2025). A warranty extension 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.
One page for every brand it was filed under. Each brand’s bulletins: Freightliner · Western Star · Fccc · Thomas Built Buses.
What the bulletin says
Source: NHTSA's summary of the manufacturer's communicationWarranty Information letter for Detroit Line or Line Seal, High Pressure Fuel Injector Standard Repair Time Updates
One of the 432 warranty extensions and special-coverage programs on file — every make, with the term each runs to.
Document filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| WI24-019 | Warranty extension | Nov 11, 2024 | 11011076 | PDF, 167 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 themFreightliner 50 model years
Also filed against: 2016 Freightliner 108SD; 2017 Freightliner 108SD; 2018 Freightliner 108SD; 2019 Freightliner 108SD; 2020 Freightliner 108SD; 2021 Freightliner 108SD; 2022 Freightliner 108SD; 2023 Freightliner 108SD; 2024 Freightliner 108SD; 2025 Freightliner 108SD; 2016 Freightliner 114SD; 2017 Freightliner 114SD; 2018 Freightliner 114SD; 2019 Freightliner 114SD; 2020 Freightliner 114SD; 2021 Freightliner 114SD; 2022 Freightliner 114SD; 2023 Freightliner 114SD; 2024 Freightliner 114SD; 2025 Freightliner 114SD; 2016 Freightliner 122SD; 2017 Freightliner 122SD; 2018 Freightliner 122SD; 2019 Freightliner 122SD; 2020 Freightliner 122SD; 2021 Freightliner 122SD; 2022 Freightliner 122SD; 2023 Freightliner 122SD; 2024 Freightliner 122SD; 2025 Freightliner 122SD; 2016 Freightliner Business Class M2; 2017 Freightliner Business Class M2; 2018 Freightliner Business Class M2; 2019 Freightliner Business Class M2; 2020 Freightliner Business Class M2; 2021 Freightliner Business Class M2; 2022 Freightliner Business Class M2; 2023 Freightliner Business Class M2; 2024 Freightliner Business Class M2; 2025 Freightliner Business Class M2; 2016 Freightliner Cascadia; 2017 Freightliner Cascadia; 2018 Freightliner Cascadia; 2019 Freightliner Cascadia; 2020 Freightliner Cascadia; 2021 Freightliner Cascadia; 2022 Freightliner Cascadia; 2023 Freightliner Cascadia; 2024 Freightliner Cascadia; 2025 Freightliner Cascadia.
Western Star 38 model years
Also filed against: 2016 Western Star 4700; 2017 Western Star 4700; 2018 Western Star 4700; 2019 Western Star 4700; 2020 Western Star 4700; 2021 Western Star 4700; 2022 Western Star 47X; 2023 Western Star 47X; 2024 Western Star 47X; 2025 Western Star 47X; 2016 Western Star 4900; 2017 Western Star 4900; 2018 Western Star 4900; 2019 Western Star 4900; 2020 Western Star 4900; 2021 Western Star 49X; 2022 Western Star 49X; 2023 Western Star 49X; 2024 Western Star 49X; 2025 Western Star 49X; 2016 Western Star 5700; 2017 Western Star 5700; 2018 Western Star 5700; 2019 Western Star 5700; 2020 Western Star 5700; 2021 Western Star 5700; 2022 Western Star 5700; 2023 Western Star 57X; 2024 Western Star 57X; 2025 Western Star 57X; 2016 Western Star 6900; 2017 Western Star 6900; 2018 Western Star 6900; 2019 Western Star 6900; 2020 Western Star 6900; 2021 Western Star 6900; 2022 Western Star 6900; 2023 Western Star 6900.
Fccc 92 model years
Also filed against: 2017 Fccc MC; 2018 Fccc MC; 2019 Fccc MC; 2020 Fccc MC; 2021 Fccc MC; 2022 Fccc MC; 2023 Fccc MC; 2024 Fccc MC; 2025 Fccc MC; 2018 Fccc S2C; 2019 Fccc S2C; 2020 Fccc S2C; 2021 Fccc S2C; 2022 Fccc S2C; 2023 Fccc S2C; 2024 Fccc S2C; 2025 Fccc S2C; 2017 Fccc S2RV; 2018 Fccc S2RV; 2019 Fccc S2RV; 2020 Fccc S2RV; 2021 Fccc S2RV; 2022 Fccc S2RV; 2023 Fccc S2RV; 2024 Fccc S2RV; 2025 Fccc S2RV; 2016 Fccc XBP; 2017 Fccc XBP; 2018 Fccc XBP; 2019 Fccc XBP; 2020 Fccc XBP; 2021 Fccc XBP; 2016 Fccc XBR; 2017 Fccc XBR; 2018 Fccc XBR; 2019 Fccc XBR; 2020 Fccc XBR; 2021 Fccc XBR; 2016 Fccc XBS; 2017 Fccc XBS; 2018 Fccc XBS; 2019 Fccc XBS; 2020 Fccc XBS; 2021 Fccc XBS; 2022 Fccc XBS; 2023 Fccc XBS; 2024 Fccc XBS; 2025 Fccc XBS; 2016 Fccc XCL; 2017 Fccc XCL; 2018 Fccc XCL; 2019 Fccc XCL; 2020 Fccc XCL; 2021 Fccc XCL; 2016 Fccc XCM; 2017 Fccc XCM; 2018 Fccc XCM; 2019 Fccc XCM; 2020 Fccc XCM; 2021 Fccc XCM and 32 more.
Thomas Built Buses 30 model years
Also filed against: 2016 Thomas Built Buses SAF-T-Liner C2; 2017 Thomas Built Buses SAF-T-Liner C2; 2018 Thomas Built Buses SAF-T-Liner C2; 2019 Thomas Built Buses SAF-T-Liner C2; 2020 Thomas Built Buses SAF-T-Liner C2; 2021 Thomas Built Buses SAF-T-Liner C2; 2022 Thomas Built Buses SAF-T-Liner C2; 2023 Thomas Built Buses SAF-T-Liner C2; 2024 Thomas Built Buses SAF-T-Liner C2; 2025 Thomas Built Buses SAF-T-Liner C2; 2016 Thomas Built Buses SAF-T-Liner EFX; 2017 Thomas Built Buses SAF-T-Liner EFX; 2018 Thomas Built Buses SAF-T-Liner EFX; 2019 Thomas Built Buses SAF-T-Liner EFX; 2020 Thomas Built Buses SAF-T-Liner EFX; 2021 Thomas Built Buses SAF-T-Liner EFX; 2022 Thomas Built Buses SAF-T-Liner EFX; 2023 Thomas Built Buses SAF-T-Liner EFX; 2024 Thomas Built Buses SAF-T-Liner EFX; 2025 Thomas Built Buses SAF-T-Liner EFX; 2016 Thomas Built Buses SAF-T-Liner HDX; 2017 Thomas Built Buses SAF-T-Liner HDX; 2018 Thomas Built Buses SAF-T-Liner HDX; 2019 Thomas Built Buses SAF-T-Liner HDX; 2020 Thomas Built Buses SAF-T-Liner HDX; 2021 Thomas Built Buses SAF-T-Liner HDX; 2022 Thomas Built Buses SAF-T-Liner HDX; 2023 Thomas Built Buses SAF-T-Liner HDX; 2024 Thomas Built Buses SAF-T-Liner HDX; 2025 Thomas Built Buses SAF-T-Liner HDX.
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.
More bulletins about the engine
Source: same model, same component group15 other manufacturer communications filed against these Daimler Truck models under the same component group (engine), newest first. The eight newest are listed; the rest are on the Freightliner list.
| Number | Kind | Dated | NHTSA’s summary |
|---|---|---|---|
| TITANX EXTENSION | Warranty extension | Feb 4, 2026 | Standard Warranty Extension for vehicles with TitanX Radiators |
| FL997 | Emissions | Nov 25, 2025 | Revised emissions recall for FCCC Clean Idle Label |
| F1015 | Emissions | Nov 14, 2025 | Revised Emissions Recall for VECI Label Emissions Recall |
| F1011 | Emissions | Nov 14, 2025 | Revised Emissions Recall for GHG Label Emissions Recall |
| SF715 | Service campaign | Aug 29, 2025 | Field Service campaign for stalk switches |
| SF716 | Service campaign | May 23, 2025 | Field Service Campaign for DEF Regen Inhibit Dash Switch Indicator |
| F1014 | Emissions | Mar 25, 2025 | Emission recall for Western Star DEF Header |
| D24R7 | Emissions | Jan 31, 2025 | Emission Recall for DD8 EGR Monitor Software Reprogramming |
Quote the number at the service desk. It is what the dealer’s system is keyed on.
Every manufacturer communication NHTSA holds for Freightliner, Western Star, Fccc and Thomas Built Buses, by the number printed on the letter.
Common questions
Source: NHTSA, 49 CFR 579.5Is Daimler Truck WI24-019 a recall?
No. A warranty extension 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 WI24-019 repair free?
A warranty extension 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 WI24-019 cover?
The manufacturer filed it against 210 model years across 4 brands (Freightliner, Western Star, Fccc and Thomas Built Buses): 2017 Fccc MC, 2018 Fccc MC, 2019 Fccc MC, 2020 Fccc MC, 2021 Fccc MC, 2022 Fccc MC and more. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.