original 386-1753 Common Rail Fuel Injector for C3500 C3500B C3508B 3512B Excavator Diesel Engine Replacement for OEM 20R-1265 379-0509 original new injector

Engineered for continuous-duty industrial operation, the 386-1753 Fuel Injector is a precision-manufactured fuel injection unit developed for the . 3512B and 3516B V12 four-stroke diesel engines within the 3500 Series platform. This injector delivers metered fuel quantities into the combustion chamber under extreme pressure, supporting stable performance across power generation, marine, mining, and oil & gas applications. Cross-referenced with OE numbers 386-1753, 3861753, 20R-1265, 20R1265, CA3861753, and CAT3861753, it provides a direct replacement solution for OEM service requirements.

Constructed from high-strength alloy steel, the injector features high-precision fuel metering, superior atomization producing ultra-fine fuel droplets, and heavy-duty structural integrity to withstand harsh operating environments. Corrosion-resistant surface treatment makes the unit suitable for marine and offshore installations, while the design conforms to OEM dimensional and performance standards. Operational benefits include improved fuel efficiency, increased combustion efficiency, lower emissions, higher engine power output, reduced fuel consumption, and improved cold-start performance. Each injector is backed by a 12-month warranty and engineered for extended service life under continuous load.

The 386-1753 injector is widely supplied to . dealers, diesel engine rebuilders, generator service companies, marine repair facilities, mining contractors, oil & gas operators, and industrial maintenance providers across North America, South America, Europe, the Middle East, Africa, Southeast Asia, and Australia. Installation requires cleaning the injector bore, replacing all sealing components, applying calibrated torque, fuel leak testing, and diagnostic performance verification.