Bosch original Fuel Unit Pump Injector 1478543 DC12 DC16 D12 Series Diesel Engine Assembly Replacement for OEM 0414701020 0414701028 0414701080 1440580 original new injector

Engineered specifically for the Volvo D12 engine platform, the BOSCH 1478543 Electronic Unit Injector (EUI) delivers precise fuel delivery across the full range of Volvo D12A, D12B, D12C, D12D, and D12E power units. Built to OEM-level precision engineering, this injector supports TD122, TD123, Marine D12, and Generator D12 applications, ensuring reliable performance in demanding operating conditions.

This unit injector is fully interchangeable with OE number 1478543 and cross references 20440388, 20524648, 8113941, 8112517, 8112550, 8112908, 8113151, 8113408, and 8113473, simplifying sourcing for fleet operators and workshops. Optimized fuel atomization and high pressure injection capability promote superior fuel economy and stable power delivery, while heavy-duty internal construction supports a long operational lifespan. It is suitable for Volvo FH12, FM12, NH12, FH Series, FM Series, VM Series trucks, along with construction equipment, marine systems, and generator sets.

To maximize service life, use clean diesel fuel, avoid water contamination, replace fuel filters regularly, and follow OEM maintenance schedules. Recommended diagnostic methods include Injector Leak-Off Test, Flow Rate Analysis, Spray Pattern Inspection, Solenoid Resistance Test, ECU Diagnostic Scan, Cylinder Balance Test, and Fuel Pressure Testing. Manufactured to global Bosch quality standards, this injector provides dependable, precision-matched replacement for Volvo D12 diesel injection systems in heavy duty, marine, and industrial applications.