original 198-6877 Common Rail Fuel Injector Assembly for 3126 Diesel Engine Excavator 1986877 177-4754 188-1320 196-4229 198-6605 20R-4147 Injectors original new injector

Engineered for demanding diesel powertrains, the 198-6877 HEUI Fuel Injector delivers precision fuel metering and superior atomization for 3126, 3126B, and 3126E engine platforms, as well as selected C7 and marine 3126 applications. Manufactured according to OEM specifications and strict industrial quality standards, this component provides reliable combustion efficiency and extended service life under continuous, high-load operating conditions. It is a direct replacement solution designed for professional fleet operators, OEM service partners, and industrial maintenance providers.

This injector cross-references a comprehensive range of authorized OE numbers, including 198-6877, 222-5972, 232-1170, 232-1168, 232-1171, 232-1173, 232-1183, 153-5938, 169-7408, 174-7528, 198-6605, 20R-0758, 1OR-1267, 10R-0781, 10R-0782, 10R-1262, 10R-1257, 128-6601, 131-7150, 173-9379, 178-6342, 179-6020, 188-1320, 222-5963, 495-0327, 7E-1130, and 4P-7163. It supports heavy-duty truck fleets in North America, agricultural and industrial power systems in Europe, oilfield and generator equipment across the Middle East, construction and port machinery in Asia Pacific, and mining, power generation, and infrastructure projects in Africa.

Installation requires cleaning the fuel system, replacing injector O-rings and sealing washers, verifying fuel and HEUI oil pressure, following service manual torque specifications, performing ECM injector coding when required, and priming the fuel system before start. Backed by a 12-month warranty, this new or reman optional injector ensures dependable HEUI system performance.