The belt tensioner is responsible for keeping proper tension on the belt at all times and during all running conditions. When the tensioner ages, it loses some of the spring tension and can allow the belt to slip if left unchecked. Turner Motorsport carries Genuine BMW and high quality aftermarket options to get you back on the road in no time.
Keep your N55 or S55-powered ultimate driving machine running at peak performance with this premium replacement automatic belt tensioner from Febi Bilstein.
