X AUTOHAUX Car Drive Belt Tension Pulley for BMW X3 X5 M3 Z4 3-Series 5-Series Serpentine Tensioner Mechanical Belt Tensioner No.11-28-7-530-314/11-28-8-624-196
[Pros] Easy to install, manufactured according to the original dimensions, fully adapted.
[Function] a belt tensioner or/and idler pulley is a system that guides the serpentine belt and the timing belt on a car engine. The function of a pulley and a tensioner is to limit the belt slip. The belt tensioner can be mechanic (spring-loaded) or hydraulic.
[Package] 1x Serpentine Tensioner. Please confirm your car model and OE number before purchasing. Please check relevant operation video when you replace it.