Freightliner Business Class M2 2016–2020 — technical service bulletin
Bulletin 19TL-14 · NHTSA communication 10164626 · issued Sep 9, 2019
Technical service bulletin
communication type
Power Train
component
2016–2020
model years
26
vehicle entries
Official summary
Tool Letter for New Final Drive Driver Controlled Differential Lock Spring Compressor. These new axles require a new tool to compress the Driver Controlled Differential Lock (DCDL) spring. To remove and install the DCDL spring, the tool DSN0FDA17001 is needed.
Vehicles covered
- 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
- 2016 Freightliner Cascadia
- 2017 Freightliner Cascadia
- 2018 Freightliner Cascadia
- 2019 Freightliner Cascadia
- 2020 Freightliner Cascadia
- 2016 Freightliner Coronado
- 2017 Freightliner Coronado
- 2018 Freightliner Coronado
- 2019 Freightliner Coronado
- 2016 Western Star 4700
- 2017 Western Star 4700
- 2018 Western Star 4700
- 2019 Western Star 4700
- 2016 Western Star 4900
- 2017 Western Star 4900
- 2018 Western Star 4900
- 2019 Western Star 4900
- 2016 Western Star 5700
- 2017 Western Star 5700
- 2018 Western Star 5700
- 2019 Western Star 5700
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.