This accessory drive tensioner is designed and engineered by Litens - the world's largest supplier of original equipment (O.E.) belt tensioners in the world. This part corresponds to the OE P/N is A271 200 04 70. 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 meet or exceed the performance and life specifications of the O.E. part. The part features a premium chrome-silicon steel spring, internal damping, a "TORX T60 lift-lug" feature for ease of installation, a 6203 ball bearing and a plastic pulley molded to exacting specifications. Specifically designed for a Mercedes C250,SLK250 w/1.8L engine. 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.

Product Features:

• Designed and engineered by the world's largest Original Equipment supplier of accessory drive tensioners and pulleys.
• Internal "round spring" technology to provide constant belt tension and alignment throughout its service life. The internal damping design provides quiet, smooth, system performance.
• Installation instructions included.
• A plastic pulley specifically molded with tight radial run out for reduced noise and longer life.
• Accessory drive belts and tensioners are manufactured with similar design life targets. Since belt removal is required to change the tensioner, replacing both will extend the system service life and lower labor costs versus individual replacement.
• Installation instructions included
• Professional mechanics can install this replacement OAD in approximately 1 1/2 hours. During alternator replacement, belts, tensioners, and routing pulleys should be inspected.