FCCC XBP 2016–2021 — technical service bulletin

Bulletin WI21-004 · NHTSA communication 10187900 · issued Feb 1, 2021

Technical service bulletin

communication type

Engine and Engine Cooling

component

2016–2021

model years

vehicle entries

Official summary

Warranty Information Letter for Detroit Resources: Exploded View DD Platform and DT12 Posters. Detroit's TechComm team created visual aids for the network and released exploded view posters for DD platform engines. In early 2021, Detroit added multiple DT12 posters.

Vehicles covered

2016 FCCC XBP
2017 FCCC XBP
2018 FCCC XBP
2019 FCCC XBP
2020 FCCC XBP
2021 FCCC XBP
2016 FCCC XCR
2017 FCCC XCR
2018 FCCC XCR
2019 FCCC XCR
2020 FCCC XCR
2021 FCCC XCR
2016 Freightliner 108SD
2017 Freightliner 108SD
2018 Freightliner 108SD
2019 Freightliner 108SD
2020 Freightliner 108SD
2021 Freightliner 108SD
2016 Freightliner 114SD
2017 Freightliner 114SD
2018 Freightliner 114SD
2019 Freightliner 114SD
2020 Freightliner 114SD
2021 Freightliner 114SD
2016 Freightliner 122SD
2017 Freightliner 122SD
2018 Freightliner 122SD
2019 Freightliner 122SD
2020 Freightliner 122SD
2021 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
2016 Freightliner Cascadia
2017 Freightliner Cascadia
2018 Freightliner Cascadia
2019 Freightliner Cascadia
2020 Freightliner Cascadia
2021 Freightliner Cascadia
2019 Freightliner Econic SD
2020 Freightliner Econic SD
2021 Freightliner Econic SD
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
2016 Western Star 4700
2017 Western Star 4700
2018 Western Star 4700
2019 Western Star 4700
2020 Western Star 4700
2021 Western Star 4700
2016 Western Star 4900
2017 Western Star 4900
2018 Western Star 4900

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.