View 11 Photos View 0 Videos Allison 2000 Transmission for a 2011 Freightliner B2 Contact for price (Used) 2010 Allison (AT), TRANSMISSION ASSEMBLY- Model: 2500 RETRAN, Serial Number: 9730032437, Part Number: 29550042, Engine: Cummins ISB 6.7, Reference images for condition, For more... ConditionUsedEngine ModelCummins ISB 175Fits To Make(s)FreightlinerFits To Model(s)B2Will Fit Year(s)2011Stock NumberP-113055 MLS Number13905481CategoryTransmissions Last Updated5/13/2026 LocationElkton, MD, US Sold ByCRG Heavy Truck Parts (844) 402-___ SHOWNUMBERCall Seller Email Seller Save More Info