Caterpillar original Caterpillar 10R-7231 diesel fuel injector replacement for 3406E C12 C15 engine original new injector

The Caterpillar C18 fuel injector 10R-7231 is an OEM replacement component engineered for CAT C18 ACERT diesel engines operating across industrial, marine, mining, and power generation sectors. It is designed to fit the C18 engine family's electronic unit injection fuel system, delivering reliable fuel metering under high-pressure conditions typical of heavy-duty commercial equipment.

Manufactured using advanced CNC precision machining and controlled microscopic tolerances, each injector incorporates wear-resistant internal components produced through specialized metallurgy and heat-treatment processes. The nozzle assembly features an optimized spray pattern that promotes uniform fuel atomization, contributing to stable combustion and consistent engine output. Specialized surface treatments provide corrosion resistance against moisture and fuel-borne contaminants, extending operational service life in harsh environments such as offshore marine operations and mining sites.

Before installation, technicians should clean the injector bore thoroughly, inspect all sealing surfaces, and replace sealing washers while verifying fuel rail cleanliness. Installation must follow Caterpillar torque procedures using approved tools, followed by a post-installation leak inspection and electronic diagnostic testing. For ongoing reliability, operators should use high-quality diesel fuel, replace fuel filters regularly, avoid water contamination, monitor fuel pressure, perform periodic injector balance testing, inspect for carbon buildup, and check the electronic control system. This injector serves as a direct cross reference for part numbers 10R-7231, 10R-7230, 10R-7232, 10R-7233, 10R-7234, 10R-7235, 10R-7228, 10R-7229, 10R-7236, 10R-9787, 10R-8988, and 10R-2772.