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Belt Tensioners

Belt tensioner failure is common in several BMWs. If your belt is still in good shape and the only critical component that you need to replace is your drive belt tensioner, we have quality OE aftermarket and Genuine BMW options available for your BMW.
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Accessory Belt Tensioner Assembly
Accessory Belt Tensioner Assembly
Earn 5% back in Turner Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply
Mubea - Corporate Logo
T#:594655
Part#: 11287810807
Ships in 2 Business Days
$ 148.53

This product was last offered at the strikethrough price on
07-15-2026

$ 138.73 USD
Free Shipping on orders $49 and up
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$ 138.73 USD
Free Shipping on orders $49 and up
Add to Wish List
If the accessory belt is sloppy and loose in your vehicle, your generator, and AC might not work properly. Alternatively, if your belt snaps constantly, the tensioner is too tight.
Accessory Belt Tensioner
Accessory Belt Tensioner
Earn 5% back in Turner Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply
Mubea - Corporate Logo
T#:31622553
Part#: 11288479475
Ships in 4 Business Days
$ 143.99 USD
Free Shipping on orders $49 and up
Add to Wish List
$ 143.99 USD
Free Shipping on orders $49 and up
Add to Wish List
Mubea Mechanical Accessory Belt Tensioner - BMW B46/48 B58
Mubea Mechanical Accessory Belt Tensioner - BMW B46/48 B58
Earn 5% back in Turner Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply
Mubea - Corporate Logo
T#:26971839
Part#: 11288580360
Ships in 2 Business Days
$ 177.99

This product was last offered at the strikethrough price on
05-07-2026

$ 160.99 USD
Free Shipping on orders $49 and up
Add to Wish List
$ 160.99 USD
Free Shipping on orders $49 and up
Add to Wish List
Accessory belt tensioners provide tension to the belt drive system, ensuring the belt is able to properly turn engine accessories without slipping. If your tensioner has failed, replace it with a brand-new unit to ensure proper water pump and alternator functionality.
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Vaico Mechanical Accessory Belt Tensioner - BMW B46/48 B58
Vaico Mechanical Accessory Belt Tensioner - BMW B46/48 B58
Earn 5% back in Turner Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply
Vaico - Corporate Logo
T#:50346424
Part#: 11288580360
Special Order: No Guaranteed ETA
$ 68.99 USD
Free Shipping on orders $49 and up
Add to Wish List
$ 68.99 USD
Free Shipping on orders $49 and up
Add to Wish List
Accessory belt tensioners provide tension to the belt drive system, ensuring the belt is able to properly turn engine accessories without slipping. If your tensioner has failed, replace it with a brand-new unit to ensure proper water pump and alternator functionality.
Show More Show Less

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