Fuel Injector Compatible for Delphi High-Pressure Common Rail Diesel Injector 400903-00074C / 40090300074C , Heavy-Duty Fuel Injector compatible for Doosan and Perkins Engines

The Delphi diesel injector 400903-00074C / 40090300074C is a robust high-pressure common rail injector designed for heavy-duty industrial engines, primarily those manufactured by Doosan and select Perkins applications. It ensures accurate fuel delivery under extreme operating conditions, making it ideal for construction, mining, and large agricultural machinery.

Equivalent / OEM Codes:

• Delphi: 400903-00074C

• Delphi: 40090300074C

• Alternate formats may appear as: 400903 00074C (spacing variation in catalogues)

Engine Compatibility:

• Doosan DL06, DL06P series diesel engines

• Some compatibility with Perkins industrial platforms, depending on engine control calibration and injector mapping

Compatible Equipment (examples):

• Doosan DX Series excavators (e.g. DX225LC, DX255LC with DL06 engines)

• Doosan wheel loaders and construction machinery

• Select Perkins-powered generators or pumps (limited, based on setup)

• Other industrial-grade stationary engines or power units requiring Delphi high-pressure systems

Technical Notes:
This injector is part of a Delphi electronic common rail system, capable of delivering fuel at extremely high pressures with exceptional precision. It contributes to lower fuel consumption, enhanced power output, and reduced emissions, especially in Tier 3 / Stage IIIA emissions-compliant systems. ECU coding and calibration is often required during replacement to ensure proper synchronization with the fuel management system.