original 386-1769 Common Rail Diesel Injector for 3508 3512 3516 C3500 Engine 5130B 5230B Excavator Replacement new injector original new injector

Engineered specifically for the 3512B engine platform, the 386-1769 fuel injector delivers OEM-level performance and direct-fit compatibility across the 3516B and select C175 Series configurations. Built as an electronic unit injector with precision-machined and hardened internal components, this assembly withstands the high-pressure demands of heavy-duty diesel operation. Corrosion-resistant materials and advanced nozzle technology ensure consistent fuel atomization, precise metering, and stable combustion across long service intervals in industrial power generation, marine propulsion, and mining equipment environments.

The 386-1769 injector integrates seamlessly with the engine electronic control module, supporting accurate injection timing and balanced cylinder performance. It is calibrated to original equipment standards, enabling improved combustion efficiency, enhanced engine power output, reduced exhaust emissions, and lower overall fuel consumption. Operators benefit from reliable cold-start capability and steady idle-to-load transitions, making the component suitable for prime power plants, standby generator systems, marine auxiliary engines, and oilfield machinery running continuously under demanding load profiles.

Compatible with authorized cross references 10R-7224 and 20R-8063, the 386-1769 serves as a dependable replacement injector for fleet maintenance and engine overhaul programs. Routine service should include the use of high-quality diesel fuel, regular fuel filter replacement, fuel system pressure verification, and inspection of the cylinder head injector bore with new seals. Following torque specifications and ECM communication checks during installation ensures long service life and reliable operation across 3512B and 3516B large bore diesel engine applications.