Holset 3580902 Turbocharger CHRA Cartridge HX35

The Holset 3580902 is a Center Housing Rotating Assembly (CHRA) designed for the HX35 turbocharger frame size. This core assembly integrates the compressor wheel, turbine wheel, shaft, and bearing system within the center housing. It serves as a direct replacement for Holset service part numbers 5451473 and 5451473H, and supersedes core assemblies 3595027 and 3575169. Primary OEM applications include Cummins 6BT and 6BTA 5.9L diesel engines (OEM references 3539698, 3804877) and Komatsu S6D102 series engines used in PC200-6 excavators (OEM references 6735-81-8201, 6735-81-8301, 6735-81-8401). Additional cross-reference compatibility extends to Yuchai YC4A series construction engines. The unit features a forged milled aluminum compressor wheel, investment cast Inconel turbine wheel, and full-floating journal bearing system lubricated by engine oil.