original 183-6797 Diesel Fuel Injector for 3126 3126B C7 Engine Excavator Common Rail Injector 1836797 10R-1262 0R-9348 222-5965 Spare Parts original new injector

Engineered as a direct-fit replacement for the 3126 engine family, the 183-6797 HEUI fuel injector delivers precise fuel metering and superior atomization for demanding heavy-duty applications. Cross-referenced with authorized numbers 10R-9000, 218-4109, 229-8842, 229-5928, 178-6342, 178-6343, 177-4752, 177-4753, and 171-9704, this unit is compatible with 3126, 3126B, and 3126E inline six-cylinder 7.2L turbocharged diesel engines used across global industrial markets.

Manufactured to micron-level tolerances, the injector features multi-hole nozzle technology for superior fuel atomization, advanced metallurgy for wear resistance, and thermal stability under extreme operating temperatures. Corrosion-protected internals ensure long service life in harsh mining, marine, and construction environments. Operational benefits include improved fuel economy, reduced emissions, higher power output, better cold starting, lower smoke levels, and enhanced combustion efficiency—making it ideal for construction equipment, mining machinery, generator sets, marine propulsion systems, and vocational trucks.

For optimal performance, inspect the injector bore, replace sealing washers, clean the fuel rail, and verify engine serial number compatibility before installation. Follow torque specifications, lubricate O-rings, and verify calibration codes during fitting. After installation, prime the fuel system, check for leaks, perform ECM diagnostic verification, and conduct an injector balance test. Proper procedures resolve hard starting, black smoke, power loss, rough idle, and high fuel consumption issues.