Caterpillar original Replacement Common Rail Fuel Injector 0R-3052 0R8338 for Caterpillar 3500A 3508 3512 3516 Engines, 111-3718, 0R2925 for Excavator 777B 785 789 Diesel Parts original new injector

The Caterpillar 0R-3052 fuel injector is a precision-engineered fuel delivery component purpose-built for the CAT 3512A diesel engine platform. Manufactured in strict accordance with OEM specifications, it delivers accurate fuel metering and reliable atomization under high-pressure operating conditions. As a core part of the diesel fuel injection system, it directly influences engine performance, combustion efficiency, fuel economy, emissions control and long-term operational reliability.

Built with advanced nozzle technology and precision-machined heat-treated alloy steel internal components, it maintains consistent spray patterns to support efficient combustion, reduce particulate and smoke emissions, and resist corrosion and high temperatures during continuous heavy-load operation. It fits all listed CAT 3512A engine variants, including generator, marine, industrial and mining configurations, and is widely used in power generation, marine propulsion, mining, oil and gas, industrial power, backup generator and heavy construction equipment.

As a direct-fit replacement requiring no modification, it supports both OEM replacement and aftermarket maintenance applications, making it a reliable solution for fleet operators, engine rebuilders, Caterpillar dealers, maintenance contractors and industrial power generation facilities. It optimizes fuel utilization to lower operating costs and sustains stable engine performance in harsh industrial environments.