(Used) 2007 Freightliner MT45 Allison 1000 TRANSMISSION ECM - Part Number: 29544773, Serial Number: BK4773N16165DZZX, TCM+CAL: A4100299, For more information about this item, give us a call. We ship Worldwide! (CRG HEAVY TRUCK PARTS) 929 W PULASKI HWY ELKTON, MD 21921