original 0R-9530 Diesel Engine Fuel Injector for C12 Excavator Engine Common Rail Fuel Injector Assembly 20R-0056 166-0149 10R-0963 Nozzle original new injector

Engineered for demanding diesel operations, the 0R-9530 fuel injector is a precision-manufactured injection nozzle assembly designed as an OEM-level replacement for the C12 diesel engine platform. Cross-referenced to 10R-0953 and 10R-9530, this component delivers accurate high-pressure fuel atomization, optimized combustion efficiency, and stable delivery volumes across the full engine duty cycle. Every unit is remanufactured to strict tolerances and factory-tested to ensure reliable, consistent injection performance under continuous heavy-duty load.

Internal components are precision-machined for extended service life, while corrosion-resistant materials protect against fuel contamination and thermal stress. The injector supports reduced fuel consumption, smoother idle stability, and lower emissions by maintaining OEM-equivalent spray patterns and pressure characteristics. Typical service applications include long-haul trucks, excavators, wheel loaders, bulldozers, mining haul trucks, diesel generator sets, marine auxiliary engines, and industrial pump and compressor drives, making it a versatile solution for fleet operators, MRO buyers, and OEM service partners.

For optimal reliability, operators should use high-quality diesel fuel, replace fuel filters at recommended intervals, perform periodic injector performance testing, and inspect for leakage. Symptoms such as hard starting, power loss, black or white smoke, rough idle, or increased fuel consumption often indicate injector wear or internal leakage and warrant immediate inspection. Engine compatibility must always be verified using the engine serial number (ESN) and injector part number.