Remanufactured 4309077 Cummins ISX / ISX15 Holset HE561VE Turbocharger

The 4309077 Turbocharger is a purpose-matched Holset HE561VE assembly for Cummins ISX CM871 low-horsepower calibration, Cummins ISX15 applications where specified. It is built around the exact compressor, turbine, housing, and control specification associated with part number 4309077, so fitment should be confirmed from the engine serial number and original turbo tag rather than by engine family alone.

The 4309077 is an HE561VE calibration associated with lower-horsepower Cummins ISX CM871 applications. Its compressor, turbine, and vane schedule are selected to deliver responsive torque and controlled drive pressure for the intended engine rating rather than maximum airflow alone. Installing a visually similar high-horsepower unit can change response and control behavior, so the ESN and original turbo tag should be verified.

This is the turbo-only version and is supplied without the electronic actuator. The existing actuator should only be reused after its condition, compatibility, and calibration are verified; a worn or incorrectly indexed actuator can cause boost, vane-position, and engine-brake faults even when the turbocharger itself is sound. Turbo Centre remanufacturing begins with complete disassembly and thorough cleaning so every critical surface can be inspected. Worn bearings, seals, and service components are replaced; shaft, wheel, housing, and vane-system condition are measured; the rotating assembly is balanced; and the completed turbo is checked for smooth operation, oil sealing, and correct control movement before shipment. This process restores the unit as a complete engineered assembly rather than simply replacing the visibly damaged component.