Remanufactured 3794429 Cummins ISB 6.7L Holset HE300VG Turbocharger with HOLSET OEM VGT Actuator

The 3794429 Turbocharger is a purpose-matched Holset HE300VG assembly for Cummins ISB 6.7L, Cummins QSB 6.7L EPA13 medium-duty applications. It is built around the exact compressor, turbine, housing, and control specification associated with part number 3794429, so fitment should be confirmed from the engine serial number and original turbo tag rather than by engine family alone.

The 3794429 is an EPA13-era HE300VG calibration used on Cummins ISB/QSB 6.7L applications. The variable geometry system actively manages turbine flow to support transient response, EGR flow, aftertreatment temperature management, and exhaust-brake operation.

Because the vane position is part of the engine's air-management strategy, correct actuator calibration and free movement of the nozzle ring are as important as compressor and turbine condition.

This complete version includes a HOLSET OEM VGT actuator matched to the turbocharger. The actuator and vane mechanism are checked for full travel and correct indexing so the assembly can be installed as a complete unit; the vehicle's required calibration or learn procedure must still be completed after installation. Turbo Centre remanufacturing begins with complete disassembly and thorough cleaning so every critical surface can be inspected. Worn bearings, seals, and service components are replaced; shaft, wheel, housing, and vane-system condition are measured; the rotating assembly is balanced; and the completed turbo is checked for smooth operation, oil sealing, and correct control movement before shipment. This process restores the unit as a complete engineered assembly rather than simply replacing the visibly damaged component.