0 Allison B400R, , Transmission Assys, Fits to: , (Used) 2008 Allison, TRANSMISSION ASSEMBLY- Model: B400RRM, Serial Number: 9330008885, Part Number: 29549631, Engine: Cummins ISM, 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# 9330008885, Casting# 9330008885, Engine Make Cummins