Holset 4051113 Turbocharger Assembly HX40W

The Holset HX40W is a high-efficiency turbocharger designed for Cummins C-series and B-series diesel engines up to 12.0 liters displacement. This unit features an internal wastegate and twin-scroll turbine housing configuration on specific variants to optimize exhaust gas energy utilization and transient response. The compressor wheel and turbine shaft assembly are manufactured from high-strength 42CrMo alloy steel to withstand high rotational speeds and thermal cycling. It serves as a direct OEM replacement for numerous Cummins engine applications including 6BT 5.9L, 6CT 8.3L, ISC, ISL, QSC, and QSB models. Cross-reference interchangeability includes Holset part numbers 4050078, 3538677, 4045055, 3795468, 4050739, 4046101, 4051438, 4051300, 4033324H, 4035653, 4038421, 4031130, 4044646, 4051320, 4089918, 3783603, 4045076, 4050203, 4050236, and associated CHRA cartridges 4046053 and 5451470H. OEM applications span Komatsu PC300-6 excavators, Volvo construction equipment with MD9 engines, Dongfeng Tianlong trucks, and various Kenworth, Vermeer, and agricultural machinery platforms.