Application : Workhorse P32 Accessory Drive Belt Tensioner Pulley. 2004 Workhorse P32 17 mm I.D. Bearing; 28.7 mm Pulley Width; 76 mm O.D. Pulley; Position: Serpentine;. 2005 Workhorse P32 17 mm I.D. Bearing; 28.7 mm Pulley Width; 76 mm O.D. Pulley; Position: Serpentine;.