The Dayco 17mm Bearing Idler / Tensioner Pulley is designed to provide reliable performance for Peterbilt, Freightliner and Ford vehicles. This pulley is constructed from steel for maximum durability and offers a maximum belt width of 12 ribs. This pulley is designed to deliver consistent, trouble-free performance. Install this pulley to ensure your vehicle is running at its best. FleetPride is your First Click in Heavy Duty®.