Supercharger HD Tensioner Upgrade

This is an HD Tensioner upgrade kit (hardware robustness and increased spring tension) that is similar to the Magnuson 31-12-00-082. The difference is that we have added an alignment sleeve to the adapter spacer, greatly improving the hardware stability.  This kit bolts to the existing Magnuson water pump bracket you already have installed. This upgrade is applicable (as a minimum) to the following list of Magnuson Supercharger applications: 2003-06 SSR 2006-09 Trailblazer SS 2004-06 Pontiac GTO 2003-07 Silverado and GMC Sierra Other “Hot Rod” kit applications may be able to use this as well. Please contact us with inquiry.