Caterpillar original Fuel Injector for Caterpillar C15 primary OE 10R-0959, cross reference 10R-3263, Replacement for OEM 0R-4118 249-0709, for Genset and Truck applications original new injector

Built for rigorous heavy-duty diesel operating conditions, the CAT 10R-0959 electronic unit injector is a precision fuel delivery component engineered for compatibility with Caterpillar C15, C15 ACERT, C16, and selected 3406E diesel engines. It fits a broad portfolio of equipment across industrial sectors, including Peterbilt, Kenworth and Freightliner on-highway trucks, CAT mining trucks, excavators and wheel loaders, generator sets, marine diesel engines, oilfield power equipment, and industrial stationary engines, with both new replacement and OEM remanufactured options available.

Integrated into Caterpillar’s electronic fuel injection system, the injector operates via camshaft-driven fuel pressurization and ECM-controlled solenoid actuation to deliver precisely timed, high-pressure fuel atomization. Aligned with OEM calibration specifications, it optimizes combustion efficiency to enhance engine power output, improve fuel economy, reduce particulate emissions, lower engine noise, and deliver faster throttle response, while hardened wear-resistant and corrosion-resistant construction supports long-term durability in harsh environments.

Every 10R-0959 injector completes 100% bench testing for flow performance and leakage resistance before dispatch, meeting OEM-equivalent quality standards and supported by a 12-month warranty. It is a mission-critical replacement component for global transportation, construction, mining, power generation, marine, and oil and gas operations, supporting consistent, reliable engine performance across all listed applications.