(Used) 2008 Allison (AT), TRANSMISSION ASSEMBLY- Model: B500R Serial Number: 72371100007005 Part Number: A 629 270 01 00 Engine: Detroit Series 60 Epa07, Reference images for condition For more information about this item, give us a call. We ship Worldwide! (CRG HEAVY TRUCK PARTS) 929 W PULASKI HWY, ELKTON, MD 21921