H1 Turbo Upgrade

Upgrade Compressor Housing & Wheel combo (60mm inducer) for 1988-1991.5 Turbochargers.

Genuine Holset, 60mm inducer, Upgrade Compressor Housing & Wheel combo for 1988-1991.5 Dodge / Cummins 5.9L diesel Turbochargers. Non intercooled trucks!

This Housing & Wheel combo is the largest available, Holset housing & wheel set to fit the stock turbo! It gives a massive increase to the compressor flow capacity and adds a map width enhancement slot to reduce compressor surge on pre air-to-air intercooled trucks. It increases the compressor wheel inducer size from 50mm to 60mm.

Both intake hose connections on this compressor housing are larger than stock, and require changing to a 4" intake hose and 2.5" compressor discharge hose! These modifications are the customers responsibility to provide.  See below for the conversion kit to help with this modification.

IMPORTANT Please take note: In order for it to drop in place you will need to order our H1C conversion kits for the compressor intake and discharger to mount correctly to the factory piping.

Click Here To Review  **Required H1 Intake Kit

Click Here To Review **Required H1 Outlet Kit