Cummins Turbo Technologies, formerly Holset, is a global leader in the design and manufacture of turbochargers for medium heavy duty diesel engines in the automotive, marine, industrial and power generator markets since 1960.

Having an outstanding record in class leading turbocharger technology, Holset was the first to market the Variable Geometry Technology (VGTTM), cast Titanium Impeller, turbo compounding and Electronic integration.