This pulley is supplied by Litens Automotive - inventor of the first automatic belt tensioner in 1979 and today the world's largest supplier of Original Equipment (O.E.) belt tensioning and routing products. This pulley is produced for serpentine belt routing applications and as the pulley component on automatic tensioner applications. This heavy duty steel pulley conforms to original equipment material and tolerance specs and meets performance and durability requirements. Comes equipped with a new bolt, washer. and spacer. Fits Ford/Mercury/Mazda applications