Detroit Diesel Series 60 14L fuel injector, part number EX631018. Equivalent to RFE4E00001, FE4E00001, 23537123, and others. E3.25 injector type with 6-hole nozzle, 1.46-degree spray angle, and 1.75 L/min flow rate. Remanufactured Delphi unit from D&W Diesel: disassembled, inspected, cleaned, and rebuilt to OEM standards. New old stock (NOS) in original sealed packaging, unused. Metal parts like gears have grease on them, this is not rust as some pictures my seem to show. HIGH-VALUE / SERIALIZED DIESEL PART? Clear evidence of part swapping or fraud? Honest mistakes or fitment questions? Happy to work it out!