original 170-5252 Diesel Engine Fuel Injector for C10 C12 Excavator Truck Common Rail Injector Nozzle Assembly Replacement for OEM 1705252 original new injector

Engineered for demanding diesel powertrain applications, this C12 Fuel Injector (OE 170-5252) is an OEM-equivalent replacement component built to restore precise fuel metering and combustion performance in C12 engines. Cross-referenced with 10R-0955 and 0R-8479, the injector serves as a drop-in solution for fleet operators, service workshops, and industrial maintenance teams that require reliable spare parts inventory for the C12 platform across trucking, marine, generator set, and industrial power configurations.

The Electronic Unit Injector (EUI) design delivers stable injection pressure and enhanced fuel atomization, contributing to improved combustion efficiency, reduced fuel consumption, higher engine output, and lower exhaust emissions. Constructed from high-durability, corrosion-resistant materials, the injector body withstands continuous thermal and pressure cycling in heavy-duty duty cycles. Optimized nozzle geometry supports strong cold-start behavior, precise fuel delivery across the RPM range, and extended service life under sustained operation in mining, construction, oilfield, and marine propulsion environments.

Recommended installation practices include cleaning the injector bore, inspecting fuel lines, replacing all sealing components, applying correct torque values, bleeding the fuel system, and performing diagnostic verification with leak inspection. Consistent use of clean diesel fuel, regular filter replacement, and adherence to scheduled maintenance help prevent common failures such as black smoke, white smoke, power loss, and hard starting linked to injector wear or solenoid malfunction, ensuring dependable long-term C12 engine performance.