0 Allison B400R, , Transmission Assys, Fits to: , (Used) Allison, TRANSMISSION ASSEMBLY- Model: B400RRM, Serial Number: 9330004035, Part Number: 29557071, Engine: Cummins, For more information about this item, give us a call. We ship Worldwide! (CRG HEAVY TRUCK PARTS) 929 W PULASKI HWY ELKTON, MD 21921, Serial# 9330004035, Casting# 9330004035, Part# 29557071