Caterpillar original 386-1769 Common Rail Fuel Injector 20R-1276 Replacement for OEM 392-0216 for Caterpillar 3512 3516 3508 C3500B Excavator 5130B 5230B Diesel Parts 392-0217 original new injector

The Caterpillar 386-1769 Electronic Unit Injector is a precision-engineered diesel fuel injection component built for heavy-duty Caterpillar engines operating across power generation, marine propulsion, mining, oil and gas, and general industrial sectors. It is compatible with CAT 3512B, 3516B and certain configurations of the C175 large-bore engine series, serving global aftermarket and OEM replacement needs for maintenance providers, engine rebuilders, authorized distributors and industrial fleet operators.

As a core component of the CAT Electronic Unit Injection system, this injector relies on signals from the engine’s electronic control module to deliver accurate fuel delivery timing and pressure. It features precision-machined, hardened internal components and corrosion-resistant materials, enabling precise fuel metering, optimized atomization, improved combustion efficiency, enhanced power output, reduced exhaust emissions and lower long-term fuel consumption even under harsh, high-load operating conditions.

Manufactured under strict ISO 9001 certified quality standards, the 386-1769 injector is available in new, OEM-equivalent or remanufactured conditions to suit different budget and operational requirements. It comes with a 12-month standard warranty, is held in stock for fast global delivery, and aligns with official installation, scheduled maintenance and diagnostic testing protocols to support long-term, stable engine performance.