View 10 Photos View 0 Videos Allison 1000 Reman Transmission for a 2012 Freightliner MT55 Newly Listed Contact for price (Used) 2011 Allison (AT), TRANSMISSION ASSEMBLY- Model: 1000 Reman, Serial Number: TMG040775-1, Part Number: 29550024, Engine: GM/Chev (HD), Reference images for condition. For more... ConditionUsedEngine Model6.0LFits To Make(s)FreightlinerFits To Model(s)MT55Will Fit Year(s)2012Part Number29550024Stock NumberP-501689 MLS Number14295578CategoryTransmissions Last Updated4/8/2026 LocationElkton, MD, US Sold ByCRG Heavy Truck Parts (844) 402-___ SHOWNUMBERCall Seller Email Seller Save More Info