(Used) 2009 Allison, TRANSMISSION ASSEMBLY- Model: B400RM, Serial Number: 9330008946, Part Number: 29549631, Engine: Cummins ISM, Broke bell chk pictures For more information about this item, give us a call. We ship Worldwide! (CRG HEAVY TRUCK PARTS) 929 W PULASKI HWY, ELKTON, MD 21921