Caterpillar original Caterpillar 553-2592 fuel injector assembly replacement for OEM common rail diesel engine part new injector original new injector

The CAT C9 Fuel Injector 553-2592 is a common rail diesel injector GP engineered specifically as a direct replacement for Caterpillar CAT C9 industrial and construction engines. It is widely fitted to CAT 330D, 336D, 336D2, and 340DL excavators, and is also compatible with other CAT C9-powered construction machinery and earthmoving equipment operating in heavy-duty field environments. The injector is interchangeable with OE references including 387-9433, 20R-1917, 572-0119, and 10R-7222, allowing flexible stocking and fast cross-reference identification for global aftermarket channels.

Manufactured to original-type dimensional and functional standards, the 553-2592 injector delivers precise fuel metering, fine atomization, and consistent injection quantity under high-load conditions. Its heavy-duty design supports long operating hours, high torque output, and demanding excavator duty cycles, while the precision-machined nozzle and robust solenoid assembly help maintain stable rail pressure and clean combustion. Every unit undergoes mandatory bench testing before shipment to verify spray pattern, leakage, and flow performance.

Packaging is available in neutral, branded, or custom-label formats, with engine-model, machine-model, and OE-number-based sales compatibility. Suitable for repair workshops, fleet maintenance companies, diesel engine rebuilders, heavy equipment parts distributors, mining contractors, and construction machinery dealers, this 553-2592 injector offers a dependable replacement solution for the global CAT C9 service and rebuild market.