(Used) Allison, TRANSMISSION ECM- Model: 2500PTS, Part Number: 29545538, Serial Number: BK5538N34198016B, CIN Number: 4F00RB6012W GOV RPM: 2800, Pri Mode: 5421-V, Customer Number: 6311010274, For more information about this item, give us a call. We ship Worldwide! (CRG HEAVY TRUCK PARTS) 929 W PULASKI HWY, ELKTON, MD 21921