(Used) 2006 Allison (AT), TRANSMISSION ECM- Part Number: 29545538,, Serial Number: BK5538N3010102AD, 12/24 Volts, Software Level: L09_1F5, Transmission Model: 2200HS, Plug Pins: 80 Pins Plug Rectangular, 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