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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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OEM Febi Hydraulic Alternator Belt Tensioner Assembly - E34 E39 E53 ...

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T#:363804

Part#: 11287838797

Ships on Nov 11, 2026

$ 83.99 USD

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$ 83.99 USD

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The Hydraulic Alternator Belt Tensioner is exposed to a lot of dirt, salt, and other debris due to its front lower location. This can cause the tensioner to seize and not allow the belt tensioner to adjust. Replace your belt tensioner with this OEM high quality hydraulic tensioner for many years of reliable operation to come.

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OEM Febi Mechanical Accessory Belt Tensioner - BMW B46/48 B58 ...

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T#:587397

Part#: 11288570439

Ships in 7 Business Days

$ 140.99

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

$ 121.99 USD

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$ 121.99 USD

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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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Mubea Mechanical Belt Tensioner - E70

T#:1195871

Part#: 11287799851

In Stock

$ 123.99

This product was last offered at the strikethrough price on
03-24-2026

$ 88.99 USD

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$ 88.99 USD

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Original equipment German-made tensioner for alternator, A/C and power steering system

Febi Tensioner Pulley - E90

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T#:382341

Part#: 11287807021

Ships in 3 Business Days

$ 101.99

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

$ 88.99 USD

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$ 88.99 USD

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Does not include tensioner

Accessory Belt Tensioner Assembly

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T#:578360

Part#: 11288604266

Special Order: No Guaranteed ETA

$ 70.00 USD

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$ 70.00 USD

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Keep your N55 or S55-powered ultimate driving machine running at peak performance with this premium replacement automatic belt tensioner from Febi Bilstein.