Holset 4050206 Turbocharger Assembly HX40W

The Holset HX40W turbocharger (Part Number 4050206) is designed for Cummins 6CT and 6CTA 8.3-liter diesel engines rated between 260 and 300 horsepower. This unit features a wastegated turbine housing with an integrated pneumatic actuator for boost pressure control. The compressor wheel features a 65 mm inducer and 91.2 mm outer diameter. The turbine wheel exducer measures approximately 74.6 mm. The center housing is water-cooled for enhanced thermal durability in heavy-duty cycle operations. It utilizes oil-lubricated journal bearings. Primary OEM cross-references include Cummins 4050205 and 4050208. Typical application includes Dongfeng Tianlong heavy-duty trucks equipped with DCEC (Dongfeng Cummins) C-series engines.