(Used) Allison, TRANSMISSION ECM- Model: 2200HS, Part Number: 29544772, Serial Number: BK4772N06251HV4F, CIN Number: 450048E0012, GOV RPM: 1700, Pri Mode: 5321-Gm, Customer Number: W0009898, For more information about this item, give us a call. We ship Worldwide! (CRG HEAVY TRUCK PARTS) 929 W PULASKI HWY, ELKTON, MD 21921