Cummins original 579251 Fuel Injector Diesel Engine Parts Fits Scania HPI DC12.15 DC12.18 DC12.22 & X15 s Cross-Reference Parts: 570016 1499257 1529790 original new injector

Engineered for the demanding operating environments of the Cummins QSK15 and QSX15 15L diesel engine family, this fuel injector 579251 delivers precise fuel metering and stable atomization across a wide range of load conditions. Built as an HPI injector assembly, it is designed to restore engine power, support fuel economy, and reduce misfire risk in inline 6-cylinder platforms running 24V electrical systems and, on certain generator versions, HPI-TP fuel systems.

Constructed for heavy-duty service, the injector features high temperature resistance, reliable sealing, and durable internal components suited to continuous industrial operation. It carries the primary OE number 579251 with broad cross-reference coverage including 1499257, 4903451, 579263, 4954648, 1764364, 579261, 4030346, 4088660, 4954434, 4088327, 4088665, 4062569, 1846350, 1731091, 1464994, 1511696 and 1529790, simplifying part identification for global aftermarket buyers.

Suitable for diesel generator sets, mining trucks, excavators, wheel loaders, drilling rigs, marine auxiliary engines, and other off-highway and construction equipment, this injector supports reliable power across many applications. To maximize service life, use clean diesel fuel, replace fuel filters on time, drain the water separator, maintain proper engine oil condition, and perform professional diagnosis when power loss, smoke, hard starting, or misfire occurs.