Steeda 05-09 Mustang GT Heavy Duty Belt Tensioner -Stock Pulley

Steeda 05-09 Mustang GT Heavy Duty Belt Tensioner -Stock Pulley

555-3348 - Steeda Heavy Duty Belt Tensioner - Stock Sized Billet Pulley

555-3347 - Steeda Heavy Duty Belt Tensioner - Stock Pulley

555-3358 - Steeda Heavy Duty Belt Tensioner - 90mm Billet Pulley



Stop your OEM belt tensioner bracket from bending with Steeda's new Tensioner kit! A major problem with Supercharged applications as the increased belt length and tension puts unwanted stress on the factory tensioner. A real problem is when you kick the clutch and pull the next gear the RPMS suddenly drop.



With the extra rotating mass of the supercharger and weight of all the accessories it will jerk the belt and sometimes hurt your OEM tensioner. It causes it to flex and in the end you usually end up with broken belts that are hard to find and expensive. A great fix for all blown Roush, Saleen and other bolt on supercharger applications. Kit is available with a factory pulley or an optional billet one.



Note: 555-3358 is designed for use with Whipple supercharger kits with a 3.625" - 3.25 blower pulley. These kits require a 90mm idler.



Product Benefits

• Made to be stronger then the OEM unit


• Helps prevent belt breakage


• Cheap and inexpensive way to increase performance and durability


• A Must for Supercharged applications

This product fits the following vehicles

• 2010 Mustang GT Automatic


• 2010 Mustang GT Manual


• 2009 Mustang Bullitt Manual


• 2009 Mustang GT Automatic


• 2009 Mustang GT Manual


• 2008 Mustang Bullitt Manual


• 2008 Mustang GT Automatic


• 2008 Mustang GT Manual


• 2007 Mustang GT Automatic


• 2007 Mustang GT Manual


• 2006 Mustang GT Automatic


• 2006 Mustang GT Manual


• 2005 Mustang GT Automatic


• 2005 Mustang GT Manual