original 178-0199 Diesel Fuel Injector for 3126B 3126 3126E Engine E322C E325C 950G 962G Excavator Loader Injectors Repair Kit Parts original new injector

Engineered for heavy-duty diesel service, this HEUI fuel injector carries primary reference 178-0199 with cross numbers 1780199, 10R-0782, 10R0782, 128-6601, 1286601, 198-6605, 1986605, 222-5966, 2225966, 173-9379, and 1739379. It is manufactured as an original-type replacement assembly for 3126, 3126B, 3126E, and C7 diesel engines, supporting a wide range of construction, forestry, and industrial machinery. The unit is designed to deliver precise fuel atomization and consistent injection timing under high-pressure hydraulic actuation.

Typical machine applications include excavators 322C, 322C FM, 325C, 325C L, 325C FM, M325C, and M325C MH; wheel loaders 950G II and 962G II; integrated toolcarrier IT62G II; and wheel harvesters 570B and 580B. Core features include heavy-duty diesel compatibility, precision fuel delivery, stable engine output, electronic control compatibility, thermal resistance, and vibration resistance. Every injector is verified through leakage testing, flow testing, electrical testing, response testing, and visual inspection, ensuring dependable performance for diesel repair shops, engine rebuilders, fleet operators, machinery dealers, and global parts distributors.

Before installation, verify injector number, engine model, engine serial number, machine model, and old injector number. Clean the fuel system, replace the fuel filter, inspect the injector bore, replace sealing components, and follow service-manual torque and calibration procedures. For HEUI systems, clean engine oil and correct high-pressure oil operation are essential. After installation, inspect for leaks, smoke, misfire, rough idle, abnormal noise, and diagnostic codes.