This Litens aftermarket part is designed and engineered by one of the world's largest supplier of Original Equipment (O.E.) tensioners. While the appearance is slightly different from the original equipment part, the Litens part maintains Mazda's original form, fit, and function specifications. The Litens design includes a heavy duty steel pulley for long life and performance, as well as a lift feature molded into the arm to assist in belt removal and installation. Specifically designed for 2003-05 Mazda6 V-6 3.0L Engines 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.