Accessory Belt Tensioner for Chevrolet Silverado 1500 99-08 / Trailblazer 03-09 Spring Type FREE 1-year UNLIMITED mileage warranty coverage on Evan-Fischer items purchased thru AUTO PARTS GIANT Store A high quality, Direct Fit OE Replacement Accessory Belt Tensioner from Evan-Fischer Flat; Clockwise; 60mm diameter; 20mm width