Cummins original 3411821 Diesel Fuel Injector Injector Nozzle Fits M11 ISM Engines Part Numbers 3071494 3071497 4914328 Construction Machinery Components for Heavy Truck Generator Parts

Engineered for demanding powertrain operations, the Cummins M11 PT Injector 3411821 delivers reliable fuel delivery across the full M11 and N14 engine family. Built as a direct OEM-quality replacement, this injector assembly integrates precision machined components and hardened internal parts to withstand the high pressures and temperatures characteristic of the Cummins PT fuel system. Its OEM calibration ensures balanced fuel atomization, promoting stable combustion, consistent power output, and controlled exhaust emissions.

The 3411821 is compatible with Cummins M11, M11 Plus, M11 CELECT, M11 CELECT Plus, N14, and industrial, marine, and generator variants. It cross references part numbers 3087648, 3076130, 3411767, 3411768, 3411821RX, 3411821NX, 3803474, 3803475, 3803476, 3803477, and 3803478, offering broad interchangeability for fleet and equipment operators. Corrosion resistant materials and a heavy duty design support long service life in trucks, construction machinery, mining, agricultural, and oil and gas applications.

Every unit undergoes multi-stage quality inspection to verify performance and dimensional accuracy. To maximize service life, inspect fuel filters regularly, use high quality diesel fuel, drain water separators, perform injector calibration checks, and follow the OEM maintenance schedule. This injector helps resolve difficult starting, excessive smoke, power loss, high fuel consumption, rough idle, engine knock, cylinder misfire, and high exhaust temperature caused by injector wear or poor atomization.