Holset 4029180 Turbocharger HX40W Assembly

The Holset HX40W is a fixed-geometry turbocharger with an internal wastegate actuator designed for Cummins 6CT and 6CTA 8.3 liter diesel engines. It utilizes an axial flow turbine wheel constructed from K18 high-nickel alloy to withstand high exhaust gas temperatures. The compressor stage features an aluminum alloy wheel optimized for the airflow requirements of the 8.3L displacement range. This assembly replaces Cummins OEM part numbers 4029180, 4029181, 4029184, 4049355, 4045277, 4027949, 4049356, 4033164, 4050202, 3535635, and 3802651. It is commonly applied in heavy-duty trucks, hydraulic excavators such as the Hyundai R350-7, and industrial power units. The unit is oil-cooled and lubricated via the engine lubrication system.