Freightliner 108SD 2017–2026 — technical service bulletin
Bulletin TSB26-056-FTL · NHTSA communication 11017555 · issued Apr 30, 2025
Technical service bulletin
communication type
Power Train
component
2017–2026
model years
24
vehicle entries
Official summary
Service Solution for DT12 Oil Plug Ports
Vehicles covered
- 2022 Freightliner 108SD
- 2023 Freightliner 108SD
- 2024 Freightliner 108SD
- 2025 Freightliner 108SD
- 2026 Freightliner 108SD
- 2022 Freightliner 114SD
- 2023 Freightliner 114SD
- 2024 Freightliner 114SD
- 2025 Freightliner 114SD
- 2026 Freightliner 114SD
- 2023 Freightliner Business Class M2
- 2024 Freightliner Business Class M2
- 2025 Freightliner Business Class M2
- 2026 Freightliner Business Class M2
- 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
- 2026 Freightliner Cascadia
What a TSB means. Technical service bulletins are repair guidance manufacturers send to dealers — they are not recalls, and repairs are not automatically free (warranty extensions are an exception worth checking). The full document is available via NHTSA’s vehicle lookup.