Our Suppliers
Holset Turbochargers

Holset Turbochargers

Today Holset is known as Cummins Turbo Technologies. While the name is relatively new, Holset has been a part of the Cummins Engine Company family for over 30 years now. Holset is a world leader in turbocharger technology and Holset turbochargers are an important element in the Cummins brand engine success throughout the world. But Holset brand turbochargers are applied to many commercial applications beyond Cummins brand engines, and include major names such as Volvo, Iveco, Detroit Diesel, and Scania among others.

Cummins Turbo Technologies' headquarters is in Huddersfield, England, while their U.S. based headquarters is located in Memphis Tennessee. There are six manufacturing plants located around the world including the USA, Brazil, the United Kingdom, China, and India. The newest plant just opened in 2006 in Charleston, South Carolina with a manufacturing capacity of 200,000 units per year to support the growing demand for turbochargers in North America.

You Can find more Holset related Information below. Or, you can view Holset's website for more.

Turbocharger Problems?

Read our handy turbocharger trobleshooting guide for diesel engines linked below to help you diagnose your turbocharger issues.

Diesel Engine, Turbocharger Troubleshooting Guide

Upgrade Turbochargers Counterfeit Production Specs Product Manuals Popular Media
Upgrade Turbos Cross-Reference listed below regarding the popular Super 40 and Pro 52 Turbochargers.

Holset Upgrade Turbos Part Number Matrix, PDF Format.
Below is a list of the information we have available to help you better understand how to spot a counterfeit Holset Turbo.

Counterfeit Prevention, Specifics
See all current production turbocharger secifications in the PDF below.

Click here for more specs on current model Holset Turbochargers.
Below are the links to service information, service manuals, parts sheets and compressor maps for general use. In this information you can find part numbers, assembly/overhaul information and genuine Holset turbo diagnosis practices. As more information becomes available it will be posted for general consumer use.

Holset H1C, H1D, H1E and H2A Series Turbos (pdf)

Holset H2B, H2C, H2D, H2E and H2S Series Turbos (pdf)

Holset HE221W Series Turbos (pdf)

Holset HE341Ve Series Turbos (pdf)

Holset HE351CW Series Turbos (pdf)

Holset HE431V Series Turbos (pdf)

Holset HE551V Series Turbos (pdf)

Holset HE851 Series Turbos (pdf)

Holset HX20W Series Turbos (pdf)

Holset HX25, HX25W and HX27W Series Turbos (pdf)

Holset HX30, HX32, HX35 and HX40 Series Turbos (pdf)

Holset HX30, HX32, HX35, HX40W and HX38G Series Turbos (pdf)

Holset HX50, HX52 and HX55 Series Turbos (pdf)

Holset HX50W and HX55W Series Turbos (pdf)

Holset HX55V Series Turbos (pdf)

Holset HX60 and HT60 Series Turbos (pdf)

Holset HX60W and HT60W Series Turbos (pdf)

Holset HC5A, HX80, HX82, HX83, HX85, HT4V, HT4C and HT80 Series Turbos (pdf)

Holset HY30W Series Turbos (pdf)

Holset HY35W Series Turbos (pdf)

Holset HY40V Series Turbos (pdf)

Holset HY55V Series Turbos (pdf)

Holset WH1C and WH1E Series Turbos (pdf)

Holset WH2D Series Turbos (pdf)

The videos included in this website are for informational purposes only. The videos shown are not allowed to be copied or duplicated without the express written consent of Holset Turbochargers or their affiliates.

Latest News
Contact Us


To contact the Diesel USA Group, fill out the form below and click submit to send us any inquires or suggestions you have for us. Think we need to add more to the site? Looking for more information? Fill out the form below and we'll be in touch. If you would like to contact a specific branch of the Diesel USA Group, click here for our locations page or check out our Frequently Asked Questions page.

  • Name:*
    Email:*
    Phone:
  • Your Message:


    Please Answer this question: What is four plus 2:
Our Locations


Factory Authorized Parts and Service Centers