Caterpillar original 20R-0056 Fuel Injector C12 C15 C18 Engine 3512 3516 Excavator Replacement for OEM 212-3463 10R-0967 350-7555  original new injector

The Caterpillar 20R-0056 fuel injector is a genuine OEM remanufactured component engineered for CAT C10 and C12 industrial diesel engines, including C12 ATAAC, C12 Marine, C12 Generator, 3176, and 3196 variants. It is widely applied across Caterpillar 345B, 365B, 725, 730, 972G II, and R1600G equipment used in construction, mining, marine propulsion, power generation, and oil and gas operations. Direct cross references include 350-7555, 170-5252, 203-7685, and 10R-1268, allowing seamless replacement across multiple machine platforms and engine configurations.

Manufactured to strict OEM dimensional tolerances, this injector delivers precise fuel metering under continuous high-pressure diesel injection conditions. Hardened steel construction, wear-resistant internal components, and corrosion-treated surfaces ensure extended service life in harsh operating environments. Optimized nozzle geometry produces fine fuel atomization, improving air-fuel mixing, supporting more complete combustion, and reducing particulate emissions for better thermal efficiency and lower fuel consumption.

Operators benefit from stable fuel delivery across varying loads and speeds, resulting in increased horsepower, enhanced engine response, and consistent performance. Routine daily inspection for fuel leaks, excessive smoke, rough idle, or power loss is recommended, along with scheduled injector maintenance. Installation requires depressurization of the fuel system, cleaning of the injector bore, replacement of all seals, lubrication of O-rings, and application of OEM torque values to ensure proper sealing and reliable long-term operation.