Cummins original Diesel Engine Fuel Injector 4964171 Cross Reference 4964172 for Cummins K19 KTA19 QSK19 QSK38 QSK50 QSK60, 2882077 for Excavator, Compatible with 4089972 original new injector

Designed for the fuel-system demands of large Cummins diesel engines, the Cummins QSK19 Diesel Fuel Injector 4964171 supports accurate fuel metering, high-pressure atomization and stable combustion. Its heavy-duty injection function is intended to assist engine power recovery, support fuel economy and maintain reliable long-hour operation. The QSK19-Series context includes a 19-liter inline six-cylinder platform using a high-pressure fuel pump, Modular Common Rail fuel system and integrated electronic control system.

This injector is positioned for diesel generator sets, G-Drive engines, mining trucks, excavators, marine propulsion and auxiliary engines, oilfield frac units, drilling rigs, rail equipment, construction machinery and industrial power units. It also serves emergency power systems, rental power fleets, heavy-equipment repair providers, diesel repair shops, fleet maintenance companies and engine rebuilders. For B2B sourcing, its broad application coverage and clearly listed part-number references support catalog matching across power generation, marine, mining, oil and gas, rail and industrial maintenance channels.

Related market-listed numbers include 4964170, 4964172, 4955524, Y431K05417, Y431K05558, F00BL0J018, 2867147 and 2882077. These references aid sourcing and buyer searches but are not official Cummins interchange confirmation. Although public listings also associate 4964171 with K19, KTA19 and QSK38 searches, final fitment should be verified by engine serial number, CPL, old injector number, injector body marking, fuel system type, ECM calibration and equipment model before quotation or shipment.