0 Detroit DD13, , Engine Misc Parts, Fits to: , (Used) Detroit DD13, METERING UNIT - HC-HD, DD13/15- Part Number: RA4710700055, Serial Number: R1HP0SYE, Engine Information- ESN: 471927S0236193, 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# R1HP0SYE, Part# RA4710700055,