Holset 4039503 Turbocharger HX35W Assembly

The Holset HX35W turbocharger assembly (Cummins part number 4039503) is engineered for Cummins ISB6 series diesel engines compliant with Euro 4 and Euro 5 emission standards. This unit features a pneumatically actuated wastegate for precise boost pressure control and a water-cooled center housing to manage thermal loads in heavy-duty applications. The rotating assembly is high-speed balanced to ensure low vibration and extended bearing life. It serves as a direct OEM replacement for Dongfeng commercial vehicles including the Tianlong, Tianjin, and Dali Shen series equipped with the Dongfeng Cummins ISB6 powerplant. Cross-reference part numbers include 4040204 and 4043245. The compressor and turbine wheels are manufactured from high-nickel alloy and Inconel respectively to withstand exhaust gas temperatures exceeding 950°C.