【COMPATIBILITY1】The Engine Drive Belt Tensioner Idler Pulley Serpentine Belt Drive Component Kit is compatible with BMW 2008-2013 128i 3.0L L6, 2006 325i/325xi/330i/330xi 3.0L L6, 2007-2013 328i 3.0L L6, 2009-2013 328i xDrive 3.0L L6, 2007-2008 328xi 3.0L L6, 2006-2007 525i/525xi/530i/530xi 3.0L L6, 2008-2010 528i 3.0L L6, 2009-2010 528i xDrive 3.0L L6.
【COMPATIBILITY2】The Engine Drive Belt Tensioner Idler Pulley Serpentine Belt Drive Component Kit is compatible with BMW 2008 528xi 3.0L L6, 2007-2010 X3 3.0L L6, 2007-2008 X5 3.0si 3.0L L6 (Not for cars with Adaptive Drive or 4-Zone Automatic Climate Control.), 2009-2010 BMW X5 xDrive30i 3.0L L6(Not for cars with Adaptive Drive or 4-Zone Automatic Climate Control.)
【FUNCTION】The serpentine belt can transmit power to the engine accessories, and the tensioner can provide the necessary belt tension for the system, control vibration, reduce noise and extend the belt life. The idler pulley can help improve drivetrain stability. If a car does not have a good tensioner, idler pulley and belt kit, then no matter how powerful the engine or the fast tires it is, it will be useless.
【SERVICE】If you have any questions about this item, please feel free to contact us. We will respond within 24 hours. We constantly optimize service quality and strive to provide good service. Thank you for your support.