The Dorman 419-5001 Idler Pulley is a specific fit pulley made of polyamide material in black color. It has a 12mm bearing width and an inside diameter of 17mm. The pulley has a serpentine belt type with one groove quantity of M6 - 1.0. It features a limited lifetime warranty and comes with one pulley bearing quantity. The pulley diameter is 82mm, and it is designed for regular grade type vehicles.