2 0 Allison B400R Transmission for a 2017 Gillig Low Floor Bus $1,495 USD GOOD INSPECTED TAKEOUT HAS RETARDER/ 90 DAY WARRANTY EXCHANGE, Serial#: 6511442190, Engine Make: Cummins, Casting#: NA, Engine Model: ISL ConditionUsedEngine ModelCummins ISLFits To Make(s)GilligFits To Model(s)Low Floor BusWill Fit Year(s)2017Part NumberB400RStock Number111824-2 MLS Number13251841CategoryTransmissions Last Updated11/19/2025 LocationUcon, ID, US Sold ByHolst Truck Parts (833) 541-___ SHOWNUMBERCall Seller Email Seller Save More Info