This Litens belt tensioner is manufactured by INA, the original equipment (O.E.) tensioner supplier. The tensioner 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 tensioner is designed for a wide variety of Saab 9000 vehicles with a 2.3L gas engine. Like the original part, this tensioner is manufactured to OE specifications. The Litens replacement part maintains the O.E. designed hydraulic strut and all bracketry for easy replacement. It is recommended to replace the entire tensioning unit to ensure proper performance. Common O.E. Part Number: 4901443. 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.