2006 Allison 2200HS, Truck Delivery, Transmission ECMs, Fits to: Freightliner MT55 Chassis, (Used) 2006 Allison (AT), TRANSMISSION TCM- ECM Model: 466, Part Number: 29542725, Serial Number: BKDYPSM1608064QY, Transmission information- Model: 2200HS, Serial Number: 6310636492, 2 Rectangular Plugs with 32 Pins each, Reference images for condition. For more information about this item, give us a call. We ship worldwide! (CRG HEAVY TRUCK PARTS) 929 W PULASKI HWY, ELKTON, MD 21921, Serial# BKDYPSM1608064QY, Casting# BKDYPSM1608064QY, Truck Year 2006 4UZAARCP16CX33210