Caterpillar original 0R-4374 Mechanical Fuel Injector for 3116 C3116 Engine Excavator E322B E325B 446B Truck Parts Replaces 0R-8467 162-0212 7E-8952 original new injector

The Caterpillar 0R-4374 fuel injector is engineered to deliver precise and consistent fuel atomization for the CAT 3116 diesel engine platform. Manufactured using high-strength alloy steel with CNC-machined components and precision-ground internal parts, each injector undergoes OEM flow testing and advanced nozzle calibration to ensure stable fuel delivery and improved combustion efficiency. The hardened steel body, corrosion-resistant coating, and high-temperature-resistant construction provide a long service life even in the most demanding operating environments.

This direct injection nozzle is designed to enhance overall engine performance by lowering fuel consumption, reducing black smoke emissions, and delivering enhanced throttle response. The tight tolerance internal components and consistent spray pattern help maintain optimal air-fuel mixture, supporting smoother idle operation and stronger output under heavy loads. Every unit is built to OEM quality standards and 100% performance tested to guarantee reliable operation across a wide range of industrial and mobile applications.

The 0R-4374 injector is widely used in Caterpillar construction machinery such as excavators, wheel loaders, bulldozers, and compaction equipment, as well as in heavy-duty trucks, generator sets, marine vessels, mining equipment, and industrial power units. Cross-referenced with 0R4374, 137-4374, and 1374374, it serves as a direct OEM replacement component for global construction, transportation, power generation, marine, and mining industries operating the CAT 3116 engine platform.