For Cummins ISX QSX15 Engine Holset Genuine HE551V 4089713 Turbo Turbocharger

Turbocharger for Cummins ISX QSX15 Engine

This Holset HE551V turbocharger (part 4089713) is a direct-fit replacement for Cummins ISX and QSX15 engines, restoring boost pressure and throttle response.

Overview

This HE551V turbocharger for Cummins ISX and QSX15 engines delivers the airflow these heavy-duty diesels need to make full power under load. Built to Holset HE551V specifications and cross-referenced to part 4089713, it replaces a failed or weak turbo without dealer markup. A strong choice for owner-operators, fleet shops, and rebuilders.

Built For Performance

• Holset HE551V frame size matched to ISX and QSX15 airflow demands
• Part number 4089713 for straightforward cross-referencing
• Journal bearing center housing built for continuous-duty diesel service
• Turbine and compressor housings cast for high exhaust temperature operation
• Balanced rotating assembly for smooth spool-up and reduced vibration
• Sealed oil feed and drain ports to match factory mounting points

Fits These Machines

• for Cummins ISX engines
• for Cummins QSX15 engines

On-The-Job Use

• Line-haul trucks running ISX power on highway routes
• QSX15 generator sets and industrial power units
• Heavy haul and vocational trucks working under sustained load
• Fleet maintenance programs replacing worn turbos on schedule

Specs At A Glance

Good To Know

Q: Is this an original Holset unit? A: This is a replacement turbocharger built to HE551V and 4089713 specifications for Cummins ISX and QSX15 engines, not an original branded product.

Q: What should I check before installing it? A: Confirm oil supply lines, drain back, and air intake are clean and unrestricted, since debris left in the system is a common cause of premature turbo failure.

Slight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.