Litens Automotive is the original equipment (O.E.) supplier of this idler pulley assembly for Hyundai and Kia applications. The Litens replacement part meets all form, fit, and performance characteristics of the original equipment part (with the exception of not having the car manufacturer's logo or part number applied to the part). This part is manufactured to the same exacting specifications as the O.E. part. Heavy duty polymer construction for long trouble-free performance. This is a complete pulley ASSEMBLY including the pulley and an O.E. quality mounting bolt. Most common O.E. part numbers are 252862B10 and 252862B000 Litens is the world's largest supplier of original equipment (O.E.) power transmission products. At Litens, we design systems that are more efficient, resulting in tangible fuel economy/emissions benefits. Litens holds over 2000 patents and continues to respond to the ever-changing automotive industry by investing heavily in new technology, facilities, and people. 90% of our line is made of products coming from the OE manufacturer, which makes the Litens Tensioning Products portfolio the purest OE tensioning line in the North American aftermarket.