Cummins 4955151 Turbocharger Kit HX40W

The Cummins 4955151 is a Holset HX40W turbocharger kit designed for Cummins 6.7L QSB, QSM11, and QSL series diesel engines. This unit features a wastegate actuator for boost control and integrates a water-cooled bearing housing for thermal management. It serves as a direct replacement for the factory turbocharger on equipment such as the Terex RT780 rough terrain crane powered by the QSB6.7 engine. The kit includes the turbocharger cartridge and necessary installation hardware. Cross-references include Cummins part numbers 4956137, 4049178, 4049152, and 4049428.