Description:It is connected to various engine drive components through a belt drive system and helps to ensure that these components receive power from the rotating crankshaft to perform important functions.ThisDrive Belt Idler Pulley fits for BMW when using a short water pump. It can change the bending direction of the belt, prevent the belt from shaking, making the belt better contact with another pulley and not fall off.Please confirm your car model of the part before purchasing to avoid buying the wrong one.This is a non-OEM product, accessory only!Specification:Color: BlackMaterial: MetalSize: 2.6x7cm / 1.02"x2.76"(H*D)Thread Size: M10x1.
