Caterpillar original Caterpillar 10R-3147 fuel injector for 3406E C12 C15 engine diesel spare part new injector original new injector

The Caterpillar CAT C13 Fuel Injector 10R-3147 is an OEM-grade electronic unit injector designed for the CAT C13 diesel engine platform. Manufactured from high-strength alloy steel with a precision-machined nozzle assembly, this injector delivers consistent high-pressure fuel atomization for reliable combustion. Each unit is factory tested and calibrated to meet original equipment flow specifications, ensuring direct-fit compatibility across CAT C13, C13 ACERT, industrial, on-highway, power unit, generator set, and marine engine applications.

This fuel injector is engineered to support a wide range of Caterpillar equipment, including excavators, wheel loaders, articulated trucks, motor graders, generator sets, and marine engines used in construction, mining, transportation, power generation, marine, and oil and gas industries. The hardened steel construction provides excellent corrosion resistance and long operational life under heavy load conditions. Installation is performed at the cylinder head, and the injector is designed to improve fuel economy, lower emissions, deliver faster throttle response, reduce engine knock, maintain stable idle operation, and enhance cold starting performance.

Proper installation and maintenance are critical for optimal injector performance. Operators should use OEM-grade fuel filters, maintain clean fuel tanks, and monitor fuel pressure regularly. Before installation, verify the part number, confirm the engine serial number, inspect fuel rail cleanliness, and replace injector seals and O-rings. During installation, follow Caterpillar service manual torque specifications and use clean diesel fuel to prevent contamination. After installation, check for fuel leakage, verify injection timing, perform idle and load tests, and clear any diagnostic codes such as injector circuit fault, fuel delivery imbalance, cylinder contribution error, injection pressure deviation, or ECM injector communication fault.