The Gates upper belt-drive pulley for 2011–2014 BMW 335i 3.0L six-cylinder applications is a replacement pulley positioned in the upper accessory belt run. It guides and stabilizes the belt to maintain alignment and protect driven accessories. Replace during belt-drive service when pulley bearing noise or wear causes misrouting or compromises accessory operation to restore proper belt function.
Gates 11-14 BMW 335I 6-Cyl. 3.0L Upper Belt Drive Pulley