Caterpillar original 0R-8619 Common Rail Fuel Injector Replacement for 150-4453 1504453 0R8619 Engine Parts for 5130B 5230B 5130BC Machinery new original new injector

The Caterpillar 3512B fuel injector 0R-8619 is a precision-engineered diesel fuel injection component manufactured to meet original equipment performance standards. Built from heat-treated alloy steel with advanced surface treatments, this injector delivers consistent fuel atomization and reliable operation under the high cylinder pressures typical of the 3512B engine platform. It is designed to be fully compatible with the 3512B, 3512B Marine, 3512B Pump Drive, 3512B Mining, and 3512B Industrial variants.

This injector is approved for use across a wide range of heavy-duty industrial applications, including prime and standby power generation, data center backup generators, marine propulsion systems, mining haul trucks, oil and gas compressors, oilfield pumping units, industrial pump drives, construction machinery, and fire/emergency power systems. Authorized cross-reference numbers include 150-4453, 162-8809, 192-2817, 392-0224, 20R-1283, 386-1776, 8E-8836, 392-0204, 392-0203, 392-0225, and 392-0226, supporting flexible sourcing and fleet standardization.

Proper installation and maintenance are critical to maximizing service life. The recommended procedure includes depressurizing the fuel system, removing the injector with OEM tools, cleaning the injector bore, replacing O-rings, applying CAT-specified torque values, reconnecting fuel lines, and performing a functional leak test. With precision manufacturing tolerances and corrosion-resistant materials, the 0R-8619 minimizes performance degradation and supports long operational intervals in the most demanding 3512B-powered industrial environments.