original 232-1168 Fuel Injector Assembly 1OR-0781 1OR-1267 173-4059 169-7408 232-1170 3126 Engine original new injector

Engineered exclusively for the 3126 engine platform, the 232-1168 fuel injector is calibrated to match the combustion characteristics of the 3126, 3126B, and 3126E diesel engines. Each unit is built to OEM dimensional and flow tolerances, ensuring direct bolt-on compatibility with the engine cylinder head and fuel rail connections without modification. The injector delivers stable injection pressure and high fuel atomization efficiency, which supports the precise fuel metering required by the electronic control module of the 3126 series across varying load and speed conditions.

The injector assembly is manufactured with wear-resistant internal components and high-temperature sealing materials that withstand the continuous-duty operating environment typical of 3126 industrial and on-highway applications. Compatibility is verified against multiple cross references including 10R7226, 326-1640, 6I2021, and 0R1078, allowing the unit to serve as a direct replacement in heavy duty trucks such as Freightliner FL70, FL80, FL112, International 4700 and 4900, Peterbilt 330 and 335, Kenworth T300 and T400, and Sterling Acterra, as well as construction equipment, generator sets, marine propulsion systems, and agricultural machinery powered by the 3126 platform.

Installation requires inspection of the injector bore, replacement of all seals and O-rings, cleaning of the fuel supply lines, and verification of ECU fault codes prior to calibration. Technicians should confirm fuel pressure against OEM specifications, perform a post-installation injector calibration, and conduct a road test to validate performance. Periodic injector diagnostics, scheduled filter replacement, and the use of ultra-clean diesel fuel are recommended to protect the injector internals and sustain the long service life expected from a 3126 fuel system component.