Litens was an Original Equipment (O.E.) supplier of this part and offers this "OE Exact"* part for the aftermarket. This popular tensioner designed for General Motors vehicles, looks, fits, and performs like the original part being replaced. The Litens product maintains its original steel pulley and molded locator pin.*OE Exact - Original Equipment manufacturers prohibits the use of their part number or logo on parts sold to other customers. Therefore, the Litens aftermarket part may have minor cosmetic differences but still be exact in performance and design. Choosing the Correct Replacement Part - The OE part for this application used either a round spring or flat spring design. The Litens aftermarket part maintains the round spring design and meets all fit and performance specs 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.