original 222-5963 Diesel Common Rail Fuel Injector for 3126 3126B 3126E Excavator Engine Replacement for OEM 2225963 10R-1262 218-4109 original new injector

Engineered as a direct-fit replacement for . 3126 series diesel engines, this Electronic Unit Injector (EUI) carries the primary OE reference 222-5963 and cross-interchanges with 10R0957, 0R8479, and CAT2225963. Designed to OEM dimensional accuracy, the injector delivers precise high-pressure fuel atomization required by modern electronic fuel injection systems, ensuring optimized combustion efficiency and stable performance across . 3126, 3126B, and 3126E platforms operating in demanding industrial environments.

The injector features a precision-machined nozzle assembly, corrosion-resistant construction, and superior thermal resistance for extended durability under continuous heavy-load service. Its stable electronic control response supports smoother idling, reliable cold starts, and reduced fuel consumption. Suitable applications include construction excavators, wheel loaders, motor graders, articulated dump trucks, mining equipment, diesel generator sets, marine engines, commercial buses, medium-duty trucks, and industrial power units serving construction, mining, oil & gas, marine, power generation, and infrastructure development sectors. Manufactured under ISO quality standards and supplied new with a 12-month warranty.

For optimal service life, thoroughly clean the injector bore, replace all sealing components, verify calibration codes where applicable, and torque to service specifications before bleeding the fuel system and running diagnostic tests. Common symptoms indicating injector replacement include hard starting, rough idle, black or white smoke, power loss, high fuel consumption, and engine misfire. Regular filter replacement, clean diesel fuel, and periodic ECM diagnostics are recommended to preserve injector performance.