Cummins original 3411691 Fuel Injector Fits QSN14 N14 Diesel Engine Cross Reference 3083846 3083622 3087560 3087733 Truck Machinery Parts for Body Systems original new injector

Built for demanding heavy-duty duty cycles, the Cummins N14 fuel injector 3411691 is a precision-engineered electronic unit injector developed for the N14 Celect and N14 Celect Plus engine family across 310HP to 525HP ratings. Manufactured to OEM-equivalent standards, this new replacement component delivers accurate fuel metering and consistent injection performance that keeps diesel powertrains operating within specification.

This injector interchanges with a broad cross-reference range, including 3411765, 3411766, 3411766R, 3411766RX, 3411766PX, 3409975, EX631766, DT3411766R, 209993X, 3652541, 3652542, 3087560, 3088178, 3411760, 3411761, 3411763, and 3411764. It fits leading heavy-duty platforms such as Freightliner Century Classic, Kenworth T800 and W900, Peterbilt 379 and 389, and International, and supports commercial transportation, mining, construction, marine, and power generation applications.

Operational benefits include improved combustion efficiency, reduced fuel consumption, lower black smoke emissions, enhanced power output, and lower operating costs. Each unit is backed by a 12-month warranty. For optimal service life, use clean diesel fuel, replace fuel filters regularly, avoid water contamination, monitor engine performance, and conduct periodic injector testing. Installation involves removing the old injector, inspecting the bore, cleaning the seating surface, replacing sealing components, torquing to OEM specification, priming the fuel system, verifying pressure, and performing an engine test.