Free Up Horsepower.
The Roush Underdrive Pulley Kit will allow you to gain more horsepower, gas mileage, and accessory life by using 25% less power than the stock factory pulley.Quality Construction.
This Roush 2-piece Replacement Pulley set is crafted from steel for durability and strength. They are completed in a black powdercoat finish for great looks under the hood.Fitment.
The Roush 2-Piece Underdrive Pulley Kit is designed for use on the 2005 to 2010 GT Mustang with the 4.6 SOHC V8 Engine and reuses the stock belt for installation. Not compatible with ROUSHcharged Mustangs.
2005, 2006, 2007, 2008, 2009, 2010 Details >>