(Used) 2000 Allison, TRANSMISSION ECM- Serial Number: 20007558, Part Number: 29543300, Model: 3500RDS, CIN: 0F00GK1004M V51896 ECB00GK1 For more information about this item, give us a call. We ship Worldwide! (CRG HEAVY TRUCK PARTS) 929 W PULASKI HWY ELKTON, MD 219