Fuel Injector Compatible for Delphi A3 Series Common Rail Diesel Fuel Injector 33800-84100 , High-Pressure Injector compatible for Hyundai D4GA Engines in Commercial Vehicles

The Delphi A3 33800-84100 diesel injector is a high-pressure common rail injector used in Hyundai D4GA diesel engines, powering a range of light and medium-duty commercial vehicles. As part of Delphi’s A3 electronic injector family, it delivers precise fuel dosing for improved engine performance, fuel economy, and emission control under daily urban and highway driving conditions.

Equivalent / OEM Codes:

• Delphi: A3 33800-84100

• Hyundai OEM: 33800-84100

• Cross-reference (catalog dependent): 28370611, 3380084100

Engine Compatibility:

• Hyundai D4GA 3.9L 4-cylinder diesel engine

• Typically Euro IV / Euro V emissions-compliant configurations

• Common in Hyundai’s commercial vehicle platforms from 2012 onward

Compatible Equipment (examples):

• Hyundai HD65, HD72, HD78 trucks (D4GA engine versions)

• Hyundai Mighty EX-series commercial vehicles

• Hyundai County buses with D4GA engine

• Various light-duty transporters and delivery vehicles in Asia, South America, and Eastern Europe

Technical Notes:
The 33800-84100 injector, from Delphi’s A3 high-pressure common rail system, ensures accurate fuel atomization, resulting in cleaner combustion, better fuel economy, and reliable cold starts. ECU coding is typically required upon installation for full synchronization with the engine management system.