Drive Belt Pulley Tensioner Kit with Bolt For BMW E90 E91 E92 E93 E60 E83 N52 Engine. Only Fit For BMW N52 Engine. For BMW 5 Series E60/E61 525i 525xi 530i 530xi 528i 528xi 2006-2010. As these cars get older and more miles are driven, the belt tensioner needs to be replaced along with the belt.
