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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 LuK A/C Belt Tensioner -- M50 M52 S50 S52
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LUK - Corporate Logo
T#:369241
Part#: 11281717210
Ships in 7 Business Days
$ 67.99 USD
Free Shipping on orders $49 and up
$ 67.99 USD
Free Shipping on orders $49 and up

This is the oil-filled tensioner that keeps the main drive belt in the proper tension. Over time the piston seals inside allow fluid to leak out. The tensioner becomes frozen or inoperable. Replacement is the best corrective action to take. This can be done during any belt or pulley service or anytime the fan is off the engine.

OEM Schaeffler (INA, LuK, & FAG) is an engineering company that focuses on high-performance, precision manufacturing. With their individual brands INA, Luk, and FAG providing exceptionally high quality parts directly to BMW, as well as countless other automotive companies, their history of reliability and variety of offered parts makes Schaeffler a go-to replacement parts provider for all of us here at Turner Motorsport.

As a leading source of high performance BMW parts and accessories since 1993, we at Turner Motorsport are honored to be the go-to supplier for tens of thousands of enthusiasts the world over. With over two decades of parts, service, and racing experience under our belt, we provide only quality performance and replacement parts.  All of our performance parts are those we would (and do!) install and run on our own cars, as well as replacement parts that are Genuine BMW or from OEM manufacturers. We only offer parts we know you can trust to perform!

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Hydraulic Alternator Belt Tensioner Roller
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Meyle - Corporate Logo
T#:594521
Part#: 11281748131
Ships on Dec 22, 2026
$ 23.99 USD
Free Shipping on orders $49 and up
$ 23.99 USD
Free Shipping on orders $49 and up
Replacement is recommend with every belt service
Genuine MINI - Corporate Logo
T#:31522896
Part#: 11288479475
Ships in 1 day
8% off MSRP $ 197.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 181.99 USD
Free Shipping on orders $49 and up
8% off MSRP
$ 197.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 181.99 USD
Free Shipping on orders $49 and up

A/C Tensioner Pulley
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Meyle - Corporate Logo
T#:594442
Part#: 11282245087
Special Order: No Guaranteed ETA
$ 26.99 USD
Free Shipping on orders $49 and up
Used to tighten the A/C drive belt. The A/C drive belt is tightened by a separate belt tensioner. If you notice yours is worn at your next belt service, replace it with a new part.

Meyle - Corporate Logo
T#:55497508
Part#: 11288579118
Special Order: No Guaranteed ETA
New Item
$ 88.99 USD
Free Shipping on orders $49 and up
This Meyle drive belt tensioner is built to strict standards to restore optimal tension to your alternator drive belt assembly.