Car Belt Tensioner Pulley 11281433571 Fit For E36 E46 E34 E39 E60 E61 E38 E65 E66 E83

OE number: 11281433571, 1128 7512 758, fit for E46 E39 E38 E36 E53 E85 E86.

Made of high quality material, durable and can be used for a long time.

Mainly composed of fixed casing, tensioning arm, wheel body, torsion spring, rolling bearing and spring bushing.

According to the different tightness of the belt, the tension is automatically adjusted to make the transmission system stable, safe and reliable.

Its role is to adjust the tightness of the timing belt, usually replaced with the timing belt.

With the belt tensioner pulley, the belt runs more smoothly, the noise is small and it can prevent slipping.