Caterpillar original 172-5780 235-9649 188-8739 217-2570 10R-7224 C9 C7 Common Rail Diesel Engine Fuel Injector for 330C 973C Excavator Loader original new injector

Engineered to meet the demanding requirements of heavy-duty diesel powertrains, this . C7 / C9 Fuel Injector (OE 172-5780) delivers precision fuel delivery for high-performance industrial engines. Manufactured from high strength alloy steel and built to OEM specifications, the injector assembly is fully cross-referenced with 235-2888, 235-9649, 188-8739, 217-2570, 236-0962, 10R-7224, and CA1725780, providing broad compatibility across construction, mining, and agricultural fleets operating . C7, C7 ACERT, C9, and C9 ACERT engines.

The injector operates on a six-stage high-pressure electronically controlled fuel injection principle: fuel is supplied under high pressure from the fuel pump, activated by ECM electronic signals, precisely metered via solenoid control, and atomized through multi-hole nozzle tips for optimal combustion inside the chamber, resulting in efficient power generation. This process ensures superior fuel atomization, reduced fuel consumption, and enhanced engine performance under continuous duty cycles typical of 330C, 330C L, 330C FM excavators, D6R II tractors, 973C loaders, and MT735/MT745 machines.

Designed for long service life and heavy duty construction, the 172-5780 injector is suitable for industrial generator sets, earthmoving equipment, material handling systems, and mining power units. Each unit is subjected to strict flow calibration and leakage testing to guarantee reliable field performance. Backed by a 12-month warranty, this replacement injector is the trusted choice for OEM distributors, rebuilders, and fleet maintenance operations requiring dependable diesel fuel injection components.