(Used) 2007 Workhorse Allison 2200HS TRANSMISSION ECM - Part Number: 29544772, Serial Number: BK4772N06251HTKT, A4000440, W0010318, For more information about this item, give us a call. We ship Worldwide! (CRG HEAVY TRUCK PARTS) 929 W PULASKI HWY ELKTON, MD 21921