0 Detroit DD13, , Engine Misc Parts, Fits to: , (Used) Detroit DD13, EGR COOLER- Detroit A4711403375 Detroit A4711405675 Serial Number: NL9321, Part Number: A4711405675, Z3861004, Engine Information- Serial Number: 471927S0233126, 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# NL9321, Casting# NL9321, Part# A4711405675