original 359-7434 Common Rail Diesel Fuel Injector for C15 C18 Excavator Engine Replacement for OEM 20R-1304 374-0750 20R-2284 3597434 Truck Parts original new injector

Engineered for demanding heavy-duty diesel platforms, the 359-7434 Fuel Injector Assembly delivers precision fuel metering and controlled atomization for C15 and C18 diesel engines. Cross-referenced with 20R-1304, CA3597434, and CA20R1304, this mechanical electronic injector GP (MEUI) is a direct replacement fitment when the OE number matches, supporting XQ500 power systems, SR4B generator sets, CX31-P600-C18I and CX35-P800-C18I petroleum power train packages, and a broad range of C15/C18 industrial and petroleum engine configurations.

Built to withstand high-load industrial environments, the injector features coated plungers optimized for modern low-sulfur, low-lubricity diesel fuels, ensuring consistent spray patterns, reliable ignition timing, and long service life. It is well suited for heavy duty truck service, construction machinery, mining support equipment, marine auxiliary power, agricultural heavy power, generator sets, and petroleum equipment. C13/C15 fitment should be treated as conditional and verified against the OE number and ECM trim requirements before installation.

Common symptoms indicating injector service include hard starting, rough idle, black or white smoke, misfire, low power, high fuel consumption, engine knocking, elevated exhaust temperature, ECM injector fault codes, and fuel leakage. Recommended diagnostics cover ECM scan, fuel pressure testing, cylinder cutout, return flow testing, harness inspection, and seal verification. Maintain clean diesel fuel, scheduled filter replacement, water separator drainage, and correct injector trim programming to maximize reliability and minimize unplanned downtime.