Holset 5499593 HE400WG Turbocharger Assembly

The Holset HE400WG is a high-efficiency, twin-scroll turbocharger designed for heavy-duty diesel engines in the 9-11 liter displacement class. This unit features a 60 mm compressor wheel inducer diameter and a 16 cm2 turbine housing A/R ratio with a T3 flange configuration. The wastegate actuator is pneumatically controlled for precise boost management. Core manufacturer part numbers include 5499593 and 5497799. Major OEM cross-references cover Volvo part numbers 3792723, 21831660, 3792724, 21913701, 3788087, 3788088, and 3795515; Cummins part numbers 5494455H, 3785222, and 4037541. The CHRA (Center Housing Rotating Assembly) interchanges with part numbers 4030896 and 6421453H. Primary applications include Volvo MD9 engines in A25F/A35F articulated haulers, Cummins QSL industrial engines in Hyster reach stackers, and Volvo Penta TAD1140VE/TAD1141VE/TAD1142VE marine and industrial power units.