Holset 4089854 Turbocharger Assembly HX55W

The Holset HX55W turbocharger (Cummins OE 4089854) is engineered for the Cummins M11 series 11.0-liter diesel engines, including ISM11 and QSM11 variants rated at 450-460 HP. This wastegated turbo model features a 11000 cc displacement compatibility and is designed for Tier-3 industrial emissions standards (2005-02 production). Primary OEM cross-references include Cummins part numbers 4036915 and 4035893. Additional manufacturer references encompass 3529190, 3803685, 4025254, and 3529041. The unit serves as a direct replacement for heavy-duty applications in construction machinery such as rotary drilling rigs, reach stackers, excavators, loaders, and generator sets. Manufactured to OEM specifications for precise fitment and durability under high-boost operating conditions.