Cummins original 3407776 Common Rail Fuel Injector Diesel Engine Part Compatible with N14 ISM11 QSM11 M11 Engines for Kenworth T600 W900 Trucks Crosses to 3083846T 4307776 original new injector

Engineered to restore precise fuel delivery across demanding heavy-duty operations, the 3407776 fuel injector is built as a direct replacement for Cummins N14, N14 Celect, and N14 Celect Plus diesel engines. It delivers dependable OEM fit and function, supporting reliable combustion performance in both on-highway and stationary industrial power applications.

This injector cross references authorized numbers 3076130, 3047991, 3411754, 3087648, 3087649, 3411760, 3411761, 3803528, 3803938, 3803473, 3804502, and 3803474, providing broad interchange coverage for fleet and equipment maintenance. It suits N14 platforms rated from 310HP through 500HP and is compatible with Freightliner, Kenworth, Peterbilt, Western Star, and International trucks, as well as diesel generator sets, construction and mining equipment, marine engines, and agricultural machinery. High injection accuracy promotes excellent fuel efficiency and reduced exhaust smoke.

Designed for long service life and heavy-duty reliability, this injector supports easy installation and consistent performance under continuous loads. To maximize service intervals, use high-quality diesel fuel, replace fuel filters regularly, drain water separators frequently, and avoid contaminated fuel. Recommended diagnostics include cylinder cut-out testing, injector balance testing, fuel pressure testing, ECM fault code scanning, leak-off testing, and visual inspection to verify optimal operation across every application.