original 370-7286 Diesel Common Rail Fuel Injector T409981 3454124 for C4.4 Excavator 316EL 318EL Replacement for OEM original new injector

Engineered specifically for the C4.4 engine platform, injector 370-7286 delivers factory-grade fuel delivery across every C4.4 variant, including the C4.4 ACERT, C4.4 Tier III, C4.4 Tier IV, generator, industrial, and construction configurations. The high pressure common rail design ensures precise fuel metering and superior atomization at every injection event, supporting stable combustion, enhanced fuel economy, and low emissions output in compliance with Tier 3 and Tier 4 operating requirements. Manufactured to OEM specification standards, the injector body is constructed from hardened alloy steel, the nozzle from precision tool steel, and the valve from heat treated steel, with fluorocarbon seals and industrial grade spring steel internals for long term durability.

This 370-7286 injector is fully interchangeable with part numbers 326-4700, 320-0680, 295-1411, 321-3600, 2645A751, 2645A747, 2645A746, and 2645A734, allowing direct fitment on 305E2, 306E2, 307E2, and 308E2 equipment platforms without modification. The component integrates seamlessly with excavators, wheel loaders, telehandlers, generator sets, backhoe loaders, compact loaders, road equipment, mining machinery, agricultural power units, and industrial marine auxiliary packages. Its corrosion resistant construction and stable performance characteristics make it a dependable service replacement for the entire C4.4 product family operating in construction, mining, power generation, agriculture, and marine sectors.

Proper installation requires verification of the engine serial number and injector bore condition before fitting a new sealing washer and O-rings, applying the specified torque to the injector, reconnecting the fuel line, and performing the fuel bleeding procedure. Routine inspection of fuel leakage, smoke output, vibration, rail pressure, and spray pattern helps maintain optimal combustion efficiency throughout the service life of the C4.4 engine.