Buy wp20561 - Genuine Cummins Turbocharger HE300VG - ISB/QSB 6.7L - wisentpartscenter.com

Description

The Genuine Cummins Holset HE300VG Turbocharger 6411502 is for Cummins ISB/QSB 6.7L diesel engines. Featuring variable geometry technology, this turbocharger regulates boost pressure to support engine power, responsive acceleration, and efficient performance under varying engine loads.

Fitment / Applications

  • Engine Manufacturer: Cummins
  • Engine Family: ISB / QSB 6.7L
  • Application Years: 2019–2023
  • Emissions Configuration: EPA21 applications
  • Turbocharger Model: Holset HE300VG
  • Turbocharger Type: Variable Geometry Turbocharger (VGT)

What's Included

  • 1 × Genuine Cummins Holset HE300VG Turbocharger Assembly

Note: Verify fitment with us before ordering to ensure the correct part for your application.

Purpose of the Part

The turbocharger uses exhaust gas energy to compress incoming air, helping the engine produce more power and operate efficiently. Its variable geometry system adjusts exhaust gas flow to maintain appropriate boost pressure, improving engine response and performance under different driving conditions.

Issue Symptoms / When to Replace

Possible signs of turbocharger problems may include:

  • Reduced engine power or sluggish acceleration
  • Low or inconsistent boost pressure
  • Excessive exhaust smoke
  • Unusual whining or whistling noises
  • Check Engine light or VGT-related fault codes

These symptoms may also result from other engine, intake, or exhaust system issues. Proper diagnosis is recommended before replacing the turbocharger.

Brand Information

Founded in 1952 and acquired by Cummins in 1973, Holset helped pioneer heavy-duty variable geometry turbocharging, introducing its sliding-wall VGT technology in 1998. The HE300VG builds on this technology, using adjustable turbine geometry to manage boost pressure across changing engine speeds and loads.

Installation Notes
  • Oil System: Inspect oil supply and return lines for contamination or restrictions that could damage the replacement turbocharger.
  • Lubrication: Prime the turbocharger with clean engine oil before initial startup.
  • Actuator Calibration: Complete the required VGT actuator installation and calibration procedure when fitting or replacing the electronic actuator.

How to Identify an OEM Part

Look for the HOLSET name and Cummins logo cast directly into the compressor housing, along with the original Holset identification label displaying the turbocharger part number and serial number.

Why Buy 6411502 From Wisent Parts Center?

  • 1 Year
    Warranty

  • Genuine Parts

    Authentic OEM parts

  • 30-Day Returns

    Conditions apply

Shop with confidence

Warranty & Return Information
Warranty Information

Wisent Parts offers a 1-year warranty on all parts from the date of delivery. This warranty covers orders placed directly through our website. If a part fails during this period, we’re here to help - whether it’s a replacement, repair, or refund. For full details, refer to the Warranty page.

Return Information

Wisent Parts accepts returns within 30 days of delivery. All returns are subject to a restocking fee. To qualify, parts must be unused and in their original condition. For full return instructions and restocking fee details, please refer to the Returns page.