original 211-3025 Diesel Engine Fuel Injector for C15 C16 3406E Excavator E329D Truck Engine Injector 2113025 10R-0955 239-4909 254-4183 Parts original new injector

Engineered as a direct replacement for OE 211-3025 and cross reference 10R-0957, this Electronic Unit Injector (EUI) delivers dependable high-pressure diesel fuel injection for C15, C15 ACERT, C16, and 3406E engine platforms. Manufactured to strict OEM fitment tolerances, the injector assembly integrates a precision-machined nozzle, wear-resistant internal components, and a corrosion-resistant housing to sustain continuous operation in demanding industrial environments. Alternate reference numbers include CAT2113025 and CAT10R0957.

This injector supports precise fuel metering and stable electronic performance, resulting in optimized combustion, reduced fuel consumption, lower exhaust emissions, and improved engine power output across the full load range. Typical applications include haul trucks, excavators, bulldozers, wheel loaders, motor graders, drilling systems, heavy-duty highway trucks, commercial marine vessels, offshore support ships, diesel generator sets, emergency backup power systems, and hydraulic fracturing power units. The robust construction extends service life under high-hour duty cycles common in mining, construction, transportation, marine, power generation, and oil & gas operations.

Installation requires disconnecting battery power, cleaning the injector bore, fitting new sealing components, and torquing to OEM specifications, followed by ECM diagnostics, leak testing, and fuel pressure verification. Preventive maintenance—clean diesel fuel, regular filter replacement, injector balance tests, and exhaust monitoring—helps identify diagnostic codes such as Injector Circuit Fault, Solenoid Failure, Fuel Delivery Imbalance, and Cylinder Contribution Fault before major failures occur.