DENSO DCRI300890 Diesel Injector

2.5L DI-D 16V · Remanufactured

DENSO DCRI300890 remanufactured common-rail diesel injector for Mitsubishi 2.5 DI-D 16V (4D56 16V / 4D56-HP) engines — L200/Triton, Pajero Sport / Shogun Sport, Challenger. Professionally tested and calibrated to OEM specification. Includes: OEM Tested, 12 Month Warranty, Free UK Delivery.

Shared engine codes

4D56 16V, 4D56-HP

Compatible vehicles

Common DCRI300890 injector failure symptoms

Hard starting or no-start; rough, shaky idle; misfire or one cylinder cutting out; black smoke and diesel-smelling exhaust; loss of power, higher fuel consumption, warning light. When two or more appear together, suspect the injector before peripherals — a comparative leak-off test isolates the failed unit without tear-down.

What causes these injectors to fail

Nozzle wear / clogging from contaminated fuel degrading atomisation — the documented main cause on this common-rail 4d56; injector internal leakage dragging rail pressure down; unregistered injector id codes after replacement causing rough idle and noise. Internal wear cannot be repaired in situ — once delivery drifts outside calibration, remanufacture or replacement is the reliable fix.

How workshops diagnose DCRI300890 faults

Denso injectors carry an ID code — register the new code after fitting or the engine will idle rough. Use a cylinder-balance test: minimal rpm change on one cylinder identifies the weak injector. Check for external diesel leaks around the injector bases and lines. Rule out SCV / rail-pressure control faults (P0088/P0089) before condemning injectors. Never condemn a common-rail injector on a fault code alone.

How every unit is tested before despatch

Each remanufactured DCRI300890 is fully stripped, ultrasonically cleaned and inspected; worn components are replaced with OE-grade parts. The rebuilt unit is calibrated on a common-rail test bench against the manufacturer's specification — delivery, back-leak and response verified — and despatched with a 12-month parts warranty and its calibration data on file.

Vehicle coverage at a glance

The DCRI300890 trusted family covers 3 verified vehicle fitments across 1 makes: Mitsubishi. Every fitment listed is registry-verified.

OE & cross-references

DCRI300890 cross-references 7 further OE numbers, including HRD731, HRD738, 1465A367, 295050-0890, 2950500890, 295050-089X and 295050089X. Always match the reference etched on your failed unit's body.

Related fault codes & engine guides

Remanufactured diesel fuel injectors on a UK testing bench
UK's Leading Diesel Injector Specialists

Find the Exact Fuel Injector
by Vehicle Registration

UK diesel injector specialists supplying OEM tested and calibrated remanufactured injectors. Trusted by garages and mechanics nationwide with 12-month warranty on every part.