original 573-4235 Diesel Fuel Injector Assembly Common Rail Injector for C9 C7 C13 C15 Engine Excavator 5734235 20R-8427 10R-2828 original new injector

Engineered as a direct OEM-equivalent replacement, the 573-4235 Fuel Injector is purpose-built for the C9 diesel engine platform, including C9 ACERT, C9 Industrial, C9 Marine, C9 Generator, and C9 Power Unit applications. Manufactured to strict original equipment tolerances, this injector assembly delivers precise, high-pressure fuel atomization required by modern electronic common rail systems. It is a proven solution for hydraulic excavators, wheel loaders, motor graders, soil compactors, articulated trucks, mining machinery, road construction equipment, marine vessels, and industrial generator sets operating under continuous heavy-duty loads.

The 573-4235 injector features a precision-machined nozzle for accurate fuel delivery, high-strength alloy steel construction for extended service life, and corrosion-resistant internal components designed to withstand harsh operating environments. Its optimized spray pattern enhances combustion efficiency, resulting in reduced fuel consumption, lower exhaust emissions, improved cold-start performance, and increased engine power output. High-pressure capability ensures stable performance across variable load conditions, while durable internal components significantly reduce maintenance intervals and long-term ownership costs for fleet operators and industrial end users.

Recommended service intervals include fuel filter inspection every 250 hours, injector performance verification every 1000 hours, and complete fuel system cleaning every 2000 hours. Installation requires cleaning the mounting seat, replacing sealing washers, torqueing to OEM specification, and priming the fuel system. Common diagnostic indicators such as misfire, excessive smoke, hard starting, power loss, or rough idle are effectively resolved through timely injector replacement.