Cummins original 1481827 Diesel Fuel Injector for ISX ISX15 QSX15 4-series R420 Truck Excavator Construction Machinery Cross Ref 1464994 1521978 1764364 1764365 original new injector

Engineered for the demanding duty cycles of 15-liter Cummins power, the 1481827 diesel fuel injector delivers dependable fuel management for the QSK15, QSKX15, QSX15, ISX15 and X15 engine families. Positioned for high-load, heavy-duty service, it supports precision fuel metering and fine atomization that keep combustion stable across the full 450–675 hp / 336–503 kW and 1650–2050 lb-ft / 2237–2779 N·m operating range of these platforms.

This injector functions as an engine-matched replacement built for real industrial conditions. Key characteristics include heavy-duty durability, power recovery, reduced smoke potential and global supply flexibility, making it suitable for trucks, excavators, wheel loaders, mining machinery, generator sets, oil and gas equipment, rail units and construction machinery. It cross-references a wide range of Cummins numbers, giving procurement and service teams broad interchange coverage for agriculture, construction, mining, oil and gas, rail, drilling and well servicing fleets.

To maximize service life, use clean diesel, replace fuel filters on time, drain the water separator, avoid contaminated fuel and inspect injector performance during engine service. When symptoms such as hard starting, rough idle, black or white smoke, power loss, high fuel consumption, knocking, misfire or engine derate appear, proper diagnosis should include ECM fault-code reading, fuel pressure testing, return-flow testing and injector balance testing.