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December 7, 2021 Service bulletin

DT12 Transmission Control Harness Chafing the Transmission Control Module

Freightliner technical service bulletin SB26-054 for 2017-2022 Freightliner Cascadia.

Bulletin number
SB26-054
Component
Power train
Summary
DT12 Transmission Control Harness Chafing the Transmission Control Module. Classic and New Cascadia vehicles equipped with DT12 transmissions, built from approximately January 2017 to mid-March 2021, may experience rubbing/chafing on the chassis harness near the transmission.

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