0 Detroit DD13, , Engine Misc Parts, Fits to: , (Used) Engine Detroit DD13, EGR RECIRCULATION PIPE- Serial Number: 164913170, Part Number:A4721401208, flexible metal hose stainless steel over braided. Engine Information- Serial Number: 471928S, 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, Serial# 164913170, Casting# 164913170, Part# A4721401208