Cummins original 4913325 Fuel Injector Assembly for NT855 Engine SD22 Bulldozer Injector Nozzle Construction Machinery Parts 3054220 original new injector

Engineered for demanding diesel powertrains, the Cummins 4913325 PT Fuel Injector delivers dependable fuel delivery for engines operating under continuous heavy-duty conditions. Built to OEM-level manufacturing standards, this injector assembly integrates seamlessly into the Cummins PT fuel system, which relies on pressure-time fuel metering technology to achieve highly accurate fuel atomization, stable combustion performance and extended service life. It is a direct-fit component for Cummins N14, NT855, NTA855, KTA19, KTA38, KTA50 and QSK19 engines.

This PT series injector supports interchange with cross reference numbers 3047973, 3054228, 3054233, 3069767, 4914308, 4914325 and 4914328, simplifying sourcing and inventory management for fleet operators and industrial maintenance teams. Key features include precision fuel metering, corrosion resistance, improved combustion efficiency and proven heavy-duty operation capability. These qualities make it well suited for transportation, mining, construction, marine, agriculture, power generation and oil & gas applications worldwide.

To maximize injector performance and durability, use clean diesel fuel, replace fuel filters regularly, avoid water contamination, maintain correct fuel pressure and inspect injectors during scheduled maintenance. For troubleshooting, check fuel pressure, inspect fuel filters, perform a cylinder cut-out test, examine the injector spray pattern, verify PT pump operation and confirm injector calibration to ensure reliable, long-term engine efficiency.