Bosch original 0986445003 Diesel Unit Pump Fuel Pump Element Assembly for Diesel Engine, for heavy duty diesel engine application, Compatible with OM904 OM906 OM926 Series original new injector

Engineered to Bosch's world-leading fuel injection technology standards, the BOSCH 0986445003 Diesel Unit Pump Injector from the proven 799 Series is an OEM-grade fuel injection component designed for Mercedes-Benz and Setra vehicles powered by OM904, OM906, and OM926 diesel engines. Supplied in original new condition, this fuel pump element assembly restores factory-level injection performance across trucks, buses, construction machinery, agricultural equipment, generator sets, and industrial power units.

The unit pump converts high-pressure diesel into a finely atomized spray, ensuring precise fuel metering, optimal atomization, and superior combustion efficiency. Supporting pilot, pre, main, and post injection events, it helps improve combustion, reduce emissions, lower fuel consumption, increase engine power, and reduce engine noise. Built with high-precision components, the assembly delivers stable performance and long-term durability under the severe operating conditions typical of commercial transport and industrial service.

For straightforward identification and sourcing, this injector cross-references Bosch numbers 0986445103, F00E200403, G523, 0414799006, and 0414799008, plus 28565336 and further alternative codes. For maximum service life, recommended installation practice includes replacing the fuel filter, cleaning the fuel rail and injector bore, fitting a new sealing washer, and completing leak, fuel pressure, and ECU calibration checks. The 0986445003 is a dependable replacement choice for distributors, fleet maintenance providers, and engine rebuilders serving transportation, construction, agriculture, mining, marine, and power generation markets.