2 0 Allison 2500PTS Transmission Control Module (TCM) for a 2018 Freightliner B2 $450 USD USED TCM OFF ALLISON 2500PTS PART #29556882, Serial#: 6311528081, Engine Make: Cummins, Engine Model: B6.7 ConditionUsedEngine ModelCummins B6.7Fits To Make(s)FreightlinerFits To Model(s)B2Will Fit Year(s)2018Part NumberA66-00577-134 29556882Stock Number121524-20 MLS Number13647826CategoryTransmission Control Modules (TCM) Last Updated6/15/2025 LocationUcon, ID, US Sold ByHolst Truck Parts (833) 541-___ SHOWNUMBERCall Seller Email Seller Save More Info