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March 20, 2026 Service bulletin

Instructions to remove DEF sensor bypass calibration from engine ECM and new sensor installation AR

Mci technical service bulletin ITS61080 for 2018 Mci D4500 and 2017 Mci D4000istv.

Bulletin number
ITS61080
Component
Engine
Summary
Instructions to remove DEF sensor bypass calibration from engine ECM and new sensor installation AR - 18inch DEF tank CA emissions

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