Cummins original 4061851 Diesel Engine Fuel Injector Replacement for OEM Fits M11 ISM11 QSM11 ISM CM570 CM876 Engines Cross Ref PN 4088327 4088665 3411753 original new injector

Engineered for demanding heavy-duty operations, this diesel fuel injector (OE Number 4061851) delivers precise fuel metering and dependable performance across the Cummins M11 engine platform. Built to OEM-level standards, it supports fleet operators, equipment integrators, and maintenance workshops seeking a reliable injection component for high-mileage and continuous-duty service environments.

This injector is compatible with Cummins M11, M11 CELECT, M11 CELECT Plus, ISM11, and QSM11 engines, covering 10.8L to 11.0L inline 6-cylinder configurations. It serves a wide range of platforms including Freightliner, Kenworth, Peterbilt, International, and Western Star trucks, Blue Bird and Gillig buses, as well as generator sets, marine engines, construction machinery, mining equipment, industrial power units, oilfield equipment, and agricultural applications. Cross numbers include 4026222, 4903472, 4902921, 3087772, 4903472RX, 4903472PX, 4026222RX, and 4026222PX for straightforward interchange.

Key benefits include stable fuel atomization, improved fuel economy, reduced exhaust smoke, increased engine power, lower maintenance cost, and long service life. For optimal operation, use high-quality diesel fuel, replace clogged filters immediately, avoid contaminated fuel, and perform regular injector balance testing. Recommended diagnostics include electronic injector testing, cylinder cut-out testing, leak-off testing, fuel pressure testing, bench flow testing, and ECM fault code analysis.