Cross-Reference: HRD731

This cross-reference page covers OEM injector number HRD731, a DENSO diesel injector reference used to identify compatible remanufactured replacements and equivalent OEM part numbers. In our verified trusted-family catalogue, HRD731 maps to the DENSO DCRI300890 master injector — a remanufactured unit that is OEM-tested, calibrated, and supplied with a 12-month UK warranty. It is most commonly fitted to engines using the 4D56 16V, 4D56-HP codes. Verified vehicle applications include Mitsubishi L200 / Triton (KB4T), Mitsubishi Pajero Sport / Shogun Sport, Mitsubishi Challenger. HRD731 has 7 known alternate references across Bosch, Delphi, Siemens VDO, and Denso catalogues — listed below for fitment confirmation. Use the sections below to confirm compatibility by engine code or vehicle before ordering. Every injector linked from this page is professionally remanufactured in our UK workshop and ships with full traceability.