Caterpillar original Caterpillar 116-5414 Fuel Injector for C12 Diesel Engine Components Replacement for OEM new injector original new injector

The Caterpillar Fuel Injector 116-5414 is an OEM-specification Electronic Unit Injector engineered for CAT C12, C12 ATAAC, C10, 3176B, and 3196 diesel engines. Manufactured from high-strength alloy steel with precision-ground nozzle components, this injector delivers accurate fuel metering, optimized atomization, and consistent high-pressure performance across demanding industrial, marine, mining, and on-highway applications. Cross-referenced with 0R-8479 and 10R-0957, it serves as a direct-fit replacement that meets original factory calibration tolerances.

Designed for direct cylinder-head installation, the 116-5414 injector undergoes rigorous factory testing to confirm flow rate, spray pattern, and solenoid response. Its corrosion-resistant construction ensures long operational lifespan even when exposed to harsh environments and variable fuel quality. The injector supports improved combustion efficiency, reduced exhaust emissions, better fuel economy, and stable engine output under heavy load cycles typical of excavators, wheel loaders, articulated dump trucks, generator sets, and marine propulsion units.

Installation requires replacement of sealing washers and adherence to Caterpillar service manual torque specifications, while injector tips must remain contamination-free throughout the process. Routine maintenance includes the use of clean diesel fuel, regular fuel filter replacement, prevention of water ingress, and inspection of fuel lines for leaks. Operators diagnosing hard starting, excessive black smoke, or power loss can rely on the 116-5414 as a trusted OEM-standard replacement component.