Freightliner 108SD 2017–2022 — technical service bulletin
Bulletin SB49-038 · NHTSA communication 10189320 · issued Mar 16, 2021
Technical service bulletin
communication type
Engine and Engine Cooling
component
2017–2022
model years
29
vehicle entries
Official summary
Revised Freightliner Service Bulletin for netized Fill Neck for Six-Gallon DEF Tanks. A design change removed the magnets from the fill necks for some 6-gallon diesel exhaust fluid (DEF) tanks. If the vehicle is equipped with a non-magnetic fill neck 04-32529-000, it can be updated to a magnetic neck 04-32529-001. This bulletin replaces the version dated 04/18/2017. Updated availability of magnetic fill neck option for other diesel exhaust fluid (DEF) tank part numbers.
Vehicles covered
- 2017 Freightliner 108SD
- 2018 Freightliner 108SD
- 2019 Freightliner 108SD
- 2020 Freightliner 108SD
- 2021 Freightliner 108SD
- 2022 Freightliner 108SD
- 2017 Freightliner 114SD
- 2018 Freightliner 114SD
- 2019 Freightliner 114SD
- 2020 Freightliner 114SD
- 2021 Freightliner 114SD
- 2022 Freightliner 114SD
- 2017 Freightliner 122SD
- 2018 Freightliner 122SD
- 2019 Freightliner 122SD
- 2020 Freightliner 122SD
- 2021 Freightliner 122SD
- 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
- 2017 Freightliner Cascadia
- 2018 Freightliner Cascadia
- 2019 Freightliner Cascadia
- 2020 Freightliner Cascadia
- 2021 Freightliner Cascadia
- 2022 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.