095000‑9560 / 1465A257 Common Rail Fuel Injector – Denso OE Replacement for Mitsubishi 4D56

This Denso common rail fuel injector carries the manufacturer reference 095000‑9560 and OEM part numbers 1465A257 and 1465A297. It is engineered as a direct-fit replacement for Mitsubishi 4D56 HP diesel engines, serving workshops and parts distributors who demand factory-level fuel delivery accuracy without dealership pricing. Each unit undergoes bench testing to verify solenoid response, return flow characteristics, and spray pattern integrity before dispatch.

The injector operates as an electro-hydraulically controlled solenoid valve within a high-pressure common rail circuit that reaches up to 2,000 bar at full load . Fuel enters the injector body from the rail and is metered through a precision control chamber and micro-filter assembly before exiting the nozzle. Key parameters include a solenoid coil resistance within the low-ohm range typical of Denso units, a 2-pin electrical connector, and a copper combustion washer for cylinder head sealing. The unit is calibrated for a 4-cylinder inline configuration, meaning one injector per cylinder and four units per complete engine set .

This common rail injector is specified for Mitsubishi 4D56 HP powerplants found across multiple platforms from approximately 2005 through 2015 and beyond on certain derivatives . Primary applications include the Mitsubishi L200 and Triton pickups, Pajero Sport and Montero Sport SUVs, and related 2.5 DID variants in both 4WD and 2WD configurations . The engine family designation may appear as 4D56 HP, Di-DC, or Di-D depending on market and model year. Parts professionals should always verify the VIN and the stamped reference on the injector body before finalizing a match, as Denso produced several closely related part numbers for this engine generation .

Proper installation begins with fuel system isolation and removal of high-pressure lines using the correct line wrench to avoid deforming the fittings. The injector bore in the cylinder head must be cleaned of carbon deposits and the old copper washer fully extracted before inserting the new unit. Lubricate the new O-rings with silicone grease only where the service procedure permits, and seat the injector squarely without forcing it into the bore . Critically, most 4D56 common rail systems require ECU coding after injector replacement-each injector carries a unique alphanumeric correction code that the engine management system uses to balance fuel delivery across cylinders. Skipping this step typically results in rough idle, black smoke, and reduced power . Torque all high-pressure fittings to OEM specification and perform a system leak check before returning the vehicle to service.

For diesel repair shops and parts distributors, this injector addresses a recurring maintenance demand in a large installed base of Mitsubishi 4D56 engines. Common rail injectors subjected to fuel contamination, water ingress, or high mileage internal wear lose their ability to maintain consistent injection timing and pilot injection volume, producing symptoms such as combustion knock, white smoke at idle, and elevated fuel consumption . Rather than sending the vehicle to a dealership for complete injector set replacement, independent workshops can restore performance with individual or matched-set replacements. The OE-level fitment and Denso manufacturing lineage mean customers receive a component built to the same tolerances as the original, with the commercial advantage of aftermarket supply channels .

Q1: Can I replace just one injector, or must I replace the full set of four?
For diagnostic repairs, one injector is acceptable if the remaining three test within specification. However, for high-mileage engines, matched-set replacement is strongly advised to prevent cylinder-to-cylinder balance drift .

Q2: Is coding mandatory on every 4D56 application?
Yes, in virtually all cases. The ECU correction code on the new injector must be programmed via a diagnostic platform. Failure to do so triggers injector balance faults and drivability complaints .

Q3: What causes these injectors to fail prematurely?
Contaminated fuel-specifically water and fine particulate matter-is the leading cause. The micro-filter inside the injector traps particles, but once saturated, abrasive debris reaches the control valve and nozzle, causing return flow excess and spray pattern degradation .

Q4: Does this injector include the copper washer and sealing components?
Yes, each unit is supplied with the necessary combustion seal and O-rings for installation. We recommend inspecting the high-pressure line nuts and return line clips for reuse condition .

Q5: What warranty terms apply for trade accounts?
Coverage varies by distributor. Confirm return flow specifications and solenoid resistance on receipt, and retain the anti-counterfeit verification from the supplier.