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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 INA Accessory Belt Tensioner Assembly - N55 S55
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Ina - Corporate Logo
T#:394063
Part#: 11288604266
In Stock
$ 79.99

This product was last offered at the strikethrough price on
06-08-2026

$ 60.99 USD
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$ 60.99 USD
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Pulleys begin to squeak once they are reaching the end of their life span and the tensioners can fail, no longer applying enough tension to the accessory belt. If not replaced, tese can seize up and lead to a long host of problems that would leave you stranded on the side of the road. Prevent this with routine maintenance and replace your belts and pulleys every 50,000 miles to ensure continued reliability.

Fits the following BMW chassis:
F22/23 F87 F3X F07/10/11 F06/12/13 F01/02 F25/26 E70/71 F15/16

Fits the following BMW engines:
N55 3.0L, S65 3.0L

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OEM Ruville Hydraulic Belt Tensioner - E36 E46 E39 E60 X3 X5 Z3 Z4 ...
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Ruville - Corporate Logo
T#:11475
Part#: 11287838797
In Stock
$ 97.99 USD
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$ 97.99 USD
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This OEM Ruville hydraulic tensioner assembly is designed to keep the serpentine belt at the correct pressure against the pulleys. Many BMW's can have either a hydraulic or mechanical belt tensioner. Please check to see which tensioner type you need before ordering.

OEM Schaeffler (INA, LuK, Ruville, & 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!


This item fits the following BMWs:
1992-1998 E36 BMW 323is 323ic 325i 325is 325ic 328i 328is 328ic M3
1999-2005 E46 BMW 323i 323ci 325i 325ci 325xi 328i 328ci 330i 330ci 330xi M3
1991-1995 E34 BMW 525i
1997-2003 E39 BMW 525i 528i 530i

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OEM INA Water Pump/Alternator Mechanical Belt Tensioner with Pulley -...
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Ina - Corporate Logo
T#:4466
Part#: 11281427252
In Stock
$ 52.99 USD
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$ 52.99 USD
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This tensioner is for either the Water Pump or Alternator on cars with the mechanical belt tensioner system. Please check to ensure your car does not have the hydraulic tensioner. This tensioner comes with the pulley assembly.

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!

Only for cars with Mechanical belt tensioner systems.

This item fits the following BMWs:
1992-1998 E36 BMW 323is 323ic 325i 325is 325ic 328i 328is 328ic
1999-2005 E46 BMW 323i 323ci 325i 325ci 325xi 328i 328ci 330i 330ci 330xi
1991-1995 E34 BMW 525i
1997-2003 E39 BMW 525i 528i 530i
2004-2005 E60 BMW 525i 530i
2004-2006 E83 BMW X3 2.5i X3 3.0i
2000-2006 E53 BMW X5 3.0i
1997-2002 Z3 BMW Z3 2.3 Z3 2.5i Z3 2.8 Z3 3.0i
2003-2005 Z4 BMW Z4 2.5i Z4 3.0i

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OEM INA Belt Tensioner - E9X E82 E60 E82 with N54 engine
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Ina - Corporate Logo
T#:19305
Part#: 11287563927
In Stock
$ 107.99

This product was last offered at the strikethrough price on
04-15-2026

$ 71.49 USD
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$ 71.49 USD
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This is an OEM INA mechanical tensioner for the serpentine belts on BMW's with the N54 engine. This tensioner keeps the belt for the alternator, power steering and Air Conditioning taught to provide maximum performance of each system.

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!


This item fits the following BMWs:
2008-2010 E82 BMW 135i
2011 E82 BMW 1M Coupe
2006-2010 E90 BMW 335i 335xi 335i xDrive - Sedan
2007-2013 E92 BMW 335i 335is 335xi 335i xDrive - Coupe
2007-2013 E93 BMW 335i 335is - Convertible
2004-2010 E60 BMW 535i 535xi 535i xDrive

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OEM INA Timing Belt Tensioner Roller -- E21 E30 E12 E28 E34
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Ina - Corporate Logo
T#:348865
Part#: 11311711153
In Stock
$ 54.99 USD
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This is an OEM INA timing belt tensioner that keeps pressure on the engines timing belt and prevents its from slipping out of time. OEM replacement for BMW part # 11311711154 and 11311711153.

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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OEM INA A/C Belt Tensioner - BMW E36 E39 M50 M52 S50 S52
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Ina - Corporate Logo
T#:579839
Part#: 5330001100
Ships in 1 Business Day
$ 60.33 USD
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$ 60.33 USD
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Provides tension between crank pulley and A/C compressor

Genuine BMW Belt Tension Adjuster Bar
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Genuine BMW - Corporate Logo
T#:7131
Part#: 12311719992
In Stock
$ 48.79

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

$ 48.78 USD
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$ 48.78 USD
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Genuine BMW Adjusting Bar -
This item fits the following BMW Chassis:
E30,E34

Fits BMW Engines including:
M20,M30,M42,S38

OEM INA Belt Tensioner Assembly -- E60 E61 E70 E82 E88 E9X Z4 ...
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Ina - Corporate Logo
T#:304220
Part#: 11287530314
In Stock at Vendor
$ 84.99 USD
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$ 84.99 USD
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This is an OEM INA mechanical tensioner for the serpentine belt. This tensioner keeps the belt for the alternator, power steering and Air Conditioning taught to provide maximum performance of each system.

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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OEM INA A/C Belt Tensioner with Pulley - BMW E46 E39 E53 Z3 Z4 ...
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Ina - Corporate Logo
T#:2479
Part#: 11281433571
In Stock
$ 62.17 USD
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$ 62.17 USD
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This is an OEM INA AC Belt Tensioner with pulley for all 2001-2006 E46 M3, as well as all 1999-2002 non-M E46 3 series models. These belt tensioner units are known to fail, and include the tensioner pulley (as shown).

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!

This Air Conditioning / AC Belt Tensioner with Pulley fits:
1999-2000 E46 3 Series 323i, 323Ci, 328i, 328Ci
2001-2002 E46 3 Series 325i, 325Ci, 330i, 330Ci
2001-2006 E46 M3 coupe & convertible

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OEM INA Accessory Belt Tensioner Assembly - BMW N20 2.0L
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Ina - Corporate Logo
T#:587382
Part#: 11287594969
In Stock at Vendor
$ 72.99

This product was last offered at the strikethrough price on
04-15-2026

$ 71.99 USD
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$ 71.99 USD
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This is the main belt tensioner for the accessory belt.
OEM INA Water Pump/Alternator Hydraulic Belt Tensioner -- E39 E38 E31...
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Ina - Corporate Logo
T#:12942
Part#: 11281709613
In Stock
$ 40.99 USD
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$ 40.99 USD
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This is an OEM INA Hydraulic Tensioner. It provides pressure to the Water Pump and Alternator belt to assure maximum performance and prevent the belt from slipping, causing decreased cooling or low charge rates from the alternator.

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 Assembly
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URO - Corporate Logo
T#:396757
Part#: 11287838797
In Stock
$ 53.99 USD
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OEM INA Accessory Belt Tensioner Assembly - N55
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Ina - Corporate Logo
T#:386297
Part#: 11287582946
In Stock
$ 95.99 USD
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$ 95.99 USD
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This is an OEM INA mechanical tensioner for the serpentine belts on BMW's with the N55 engine. This tensioner keeps the belt for the alternator, power steering and Air Conditioning taught to provide maximum performance of each system.

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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OEM Febi Hydraulic Alternator Belt Tensioner Assembly - E34 E39 E53 ...
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Febi - Corporate Logo
T#:363804
Part#: 11287838797
Ships on Sep 24, 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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Genuine BMW Hydraulic Belt Tensioner - Water Pump/Alternator Belt - E...
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Genuine BMW - Corporate Logo
T#:22240
Part#: 11287835417
In Stock
4% off MSRP $ 165.99

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

$ 159.99 USD
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4% off MSRP
$ 165.99

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

$ 159.99 USD
Free Shipping
Hydraulic Belt Tensioner for E9x M3 with S65 engine and E60 M5, E63 M6 with S85 engine. 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.
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Genuine BMW Hydraulic Belt Tensioner - BMW E34 M50
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Ina - Corporate Logo
T#:591480
Part#: 11281722789
In Stock
$ 64.99 USD
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This item has been superseded to 11287838797


Genuine BMW Hydraulic Belt Tensioner - A/C Belt - E9X M3, E6X M5 M6 ...
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Genuine BMW - Corporate Logo
T#:22241
Part#: 11287835422
In Stock
4% off MSRP $ 165.99

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

$ 159.99 USD
Free Shipping
4% off MSRP
$ 165.99

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

$ 159.99 USD
Free Shipping
Hydraulic Belt Tensioner for E9x M3 with the S65 engine and E60 M5, E63 M6 with the S85 engine. This is the oil-filled tensioner that keeps the A/C 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.
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OEM INA Accessory Belt Tensioner Pulley - Water Pump/Alternator - BMW...
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Ina - Corporate Logo
T#:31059479
Part#: 11287838194KT
Ships on Jul 15, 2026
$ 30.99

This product was last offered at the strikethrough price on
06-15-2026

$ 21.99 USD
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$ 21.99 USD
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If your water pump or alternator belt tensioner has failed because of the pulley or bearing, this replacement pulley is all you need to get your BMW back on the road! BMW and other brands usually sell the tensioner with the metal arm included, which increases the cost, even though the arm often doesn't need replacement. This OEM replacement is a much more affordable option, saving you $150 or more compared to the Genuine BMW tensioner.
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OEM INA A/C Belt Hydraulic Tensioner -- E39 E38 E31 E53
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Ina - Corporate Logo
T#:362596
Part#: 11281745545
In Stock
$ 51.99

This product was last offered at the strikethrough price on
06-16-2026

$ 50.59 USD
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$ 50.59 USD
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This is an OEM INA Hydraulic Tensioner. It provides pressure to the A/C belt to assure maximum performance out of the A/C compressor and prevent the belt from slipping.

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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OEM INA A/C Belt Tensioner Pulley Assembly -- E39 M5
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Ina - Corporate Logo
T#:362594
Part#: 11281407520
In Stock
$ 60.99 USD
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$ 60.99 USD
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This is an OEM INA tensioner for the air conditioning belt on E39 M5 BMW's. This tensioner keeps the belt for the Air Conditioning taught to provide maximum performance of each system.

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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Mechanical A/C Belt Tensioner Assembly
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Bremmen Parts - Corporate Logo
T#:26305100
Part#: 11281433571
In Stock
Sale - Save 21% $ 59.99

This product was last offered at the strikethrough price on
05-03-2026

$ 47.32 USD
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Sale - Save 21%
$ 59.99

This product was last offered at the strikethrough price on
05-03-2026

$ 47.32 USD
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Friction Wheel N12 N14 N16 N18 1.6L Engine
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URO - Corporate Logo
T#:591689
Part#: 11287598833
In Stock
$ 84.99 USD
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$ 84.99 USD
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Friction Wheel for MINI N12 N14 N16 N18 1.6L Engine - URO

Upgrade your MINI's engine with the Friction Wheel for N12 N14 N16 N18 1.6L engine from URO. This friction wheel serves as a vital link between two pulleys, driving the water pump for optimal engine performance. Over time, the bearings in this unit may begin to squeak and fail, making it essential to replace when changing the serpentine belt.

Benefits:

  • Ensures smooth operation of the water pump
  • Prevents squeaking bearings for quieter engine performance
  • Designed for compatibility with N12 N14 N16 N18 1.6L engines
  • Easy replacement during serpentine belt changes
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OEM Febi Air Conditioning Hydraulic Belt Tensioner - E36 E39 Z3 ...
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Febi - Corporate Logo
T#:12943
Part#: 11281717210
In Stock
$ 74.99

This product was last offered at the strikethrough price on
05-02-2026

$ 61.99 USD
Limited Qty Sale
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$ 74.99

This product was last offered at the strikethrough price on
05-02-2026

$ 61.99 USD
Limited Qty Sale
Free Shipping on orders $49 and up
For Air Conditioning A/C Belt

Hydraulic Belt Tensioner for E36, E39, Z3 6-cyl models. This is the oil-filled tensioner that keeps the A/C 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.
When doing any sort of repair or maintenance there is no replacement for genuine factory parts. Turner Motorsport carries the Genuine BMW brand with pride and has the parts you need to complete your next project with confidence.

This item fits the following BMWs:
1992-1998 E36 BMW 323is 323ic 325i 325is 325ic 328i 328is 328ic M3
1997-6/1998 E39 BMW 528i
1997-1999 Z3 BMW Z3 2.3 Z3 2.8
1998-2000 Z3 BMW M Roadster M Coupe
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Accessory Belt Tensioner Assembly
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Bremmen Parts - Corporate Logo
T#:29101657
Part#: 11287563927
In Stock
Sale - Save 17% $ 69.99

This product was last offered at the strikethrough price on
05-03-2026

$ 57.79 USD
Free Shipping on orders $49 and up
Sale - Save 17%
$ 69.99

This product was last offered at the strikethrough price on
05-03-2026

$ 57.79 USD
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Accessory Belt Tensioner Assembly
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Bremmen Parts - Corporate Logo
T#:32350851
Part#: 11288604266
In Stock
Sale - Save 7% $ 51.99

This product was last offered at the strikethrough price on
05-03-2026

$ 48.59 USD
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Sale - Save 7%
$ 51.99

This product was last offered at the strikethrough price on
05-03-2026

$ 48.59 USD
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OEM INA Accesory Belt Tensioner Pulley - Air Conditioner - BMW E9X M3...
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Ina - Corporate Logo
T#:31092500
Part#: 11287838196KT
In Stock
$ 25.99

This product was last offered at the strikethrough price on
05-06-2026

$ 24.99 USD
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$ 24.99 USD
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If your air conditioning belt tensioner has failed because of the pulley or bearing, this replacement pulley is all you need to get your BMW back on the road! BMW and other brands usually sell the tensioner with the metal arm included, which increases the cost, even though the arm often doesn't need replacement. This OEM replacement is a much more affordable option, saving you $180 or more compared to the Genuine BMW tensioner.
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Accessory Belt Tensioner - Mechanical
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Bremmen Parts - Corporate Logo
T#:32450133
Part#: 11288570439
In Stock
Sale - Save 20% $ 93.99

This product was last offered at the strikethrough price on
05-03-2026

$ 75.06 USD
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Sale - Save 20%
$ 93.99

This product was last offered at the strikethrough price on
05-03-2026

$ 75.06 USD
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URO Drive Belt Tensioner W/ Pulley - BMW F8X M2 M3 M4
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URO - Corporate Logo
T#:50066851
Part#: 11288088632
In Stock
New Item
$ 60.99 USD
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Replaces broken or damaged drive belt tensioner.

Genuine BMW Alternator Adjusting Bar - E34,E34 M5
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Genuine BMW - Corporate Logo
T#:7130
Part#: 12311714450
Ships in 2 Business Days
4% off MSRP $ 44.99

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$ 43.00 USD
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4% off MSRP
$ 44.99

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

$ 43.00 USD
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Located on the alternator, this bar allows the alternator to move slightly in order to adjust the tension on the alternator drive belt.


Genuine BMW Adjusting Bar
This item fits the following BMW Chassis:
E34 M5,E34

Fits BMW Engines including:
M30,S38

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Genuine BMW Hydraulic Alternator Belt Tensioner Roller
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Genuine BMW - Corporate Logo
T#:360611
Part#: 11281748131
In Stock
Sale - Save 5% $ 78.99

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

$ 75.04 USD
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$ 78.99

This product was last offered at the strikethrough price on
06-25-2026

$ 75.04 USD
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OEM Ina Belt Tensioner - E9X E82 E60 E83 E85 E70 with N52 engine ...
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Ina - Corporate Logo
T#:12545
Part#: 11287530314K
In Stock at Vendor
$ 67.99 USD
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$ 67.99 USD
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This is the mechanical tensioner for the serpentine belts on BMW's with the N52 engine. This tensioner keeps the belt for the alternator, power steering and Air Conditioning taught to provide maximum performance of each system. Kit includes 11287530314 tensioner and 11287530315 aluminum bolt.

This item fits the following BMWs:
2008+ E82 BMW 128i
2006-2011 E90 BMW 325i 325xi 328i 328xi 328i xDrive 330i 330xi - Sedan
2006-2012 E91 BMW 325xi 328i 328xi 328i xDrive - Wagon
2007-2012 E92 BMW 328i 328xi 328i xDrive - Coupe
2007-2012 E93 BMW 328i - Convertible
2006-2010 E60 BMW 525i 525xi 530i 530xi 528i 528xi 528i xDrive
2006-2010 E83 BMW X3 3.0i X3 3.0si
2007-2013 E70 BMW X5 3.0si X5 xDrive30i
2006-2008 E85 BMW Z4 3.0i Z4 3.0si
2009+ Z4 BMW Z4 sDrive30i
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OEM Febi Mechanical Accessory Belt Tensioner - BMW B46/48 B58 ...
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Febi - Corporate Logo
T#:587397
Part#: 11288570439
Ships in 6 Business Days
$ 140.99

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

$ 122.99 USD
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$ 122.99 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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Belt Tensioner - E39 M5
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Genuine BMW - Corporate Logo
T#:12944
Part#: 11282248214
In Stock
4% off MSRP $ 446.99

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

$ 429.99 USD
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4% off MSRP
$ 446.99

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

$ 429.99 USD
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This is the tensioner pulley assembly for the serpentine belts on E39 M5 with S62 engine. This tensioner keeps the belt for the alternator, power steering and Air Conditioning taught to provide maximum performance of each system. Kit includes 11281435115 bolt and 11281435114 caps.
When doing any sort of repair or maintenance there is no replacement for genuine factory parts. Turner Motorsport carries the Genuine BMW brand with pride and has the parts you need to complete your next project with confidence.

This item fits the following BMW Chassis:
E39 M5

Fits BMW Engines including:
S62
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OEM INA Hydraulic Belt Tensioner - E36, E46, E39 6-cyl
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Ina - Corporate Logo
T#:1603
Part#: 11281717188
In Stock
$ 78.29

This product was last offered at the strikethrough price on
03-21-2026

$ 56.99 USD
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$ 56.99 USD
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For Alternator / Water Pump Belt

Hydraulic Belt Tensioner for E36, E46, E39 6-cyl models. 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!


NOTE: These BMW's may have been equipped with either a mechanical or hydraulic tensioner. Only for cars with Hydraulic Belt Tensioners. Please check before ordering.

This tensioner pulley fits the following BMWs:
1991-1995 E34 525i (M50 engine)
1992-1999 E36 325i, 325is, 328i, 328is, 323is
1995-1999 E36 M3 (M3 3.0 & M3 3.2 liter)
1997-2003 E39 525i, 528i, 530i
1999-2000 E46 323i, 323Ci, 328i, 328Ci
2001-2005 E46 325i, 325Ci, 325xi, 330i, 330Ci, 330xi
2001-2006 E46 M3 coupe & convertible
2000-2006 X5 3.0 liter (E53 chassis)
2006 525i, 530i(M54 engine)
1997-2002 Z3 & MZ3 2.8, M Roadster, M Coupe
2003-2009 Z4 M Coupe and Roadster

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A/C Belt Tensioner - 11281717210
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Bremmen Parts - Corporate Logo
T#:36913367
Part#: 11281717210
In Stock
Sale - Save 21% $ 66.99

This product was last offered at the strikethrough price on
05-03-2026

$ 53.03 USD
Free Shipping on orders $49 and up
Sale - Save 21%
$ 66.99

This product was last offered at the strikethrough price on
05-03-2026

$ 53.03 USD
Free Shipping on orders $49 and up

Also known as a shock damper, the accessory belt tensioner is used to tension the air conditioning compressor belt. This ensures proper contact with the belt drive pulleys and prevents premature wear from improper tension.

If your belt is wearing prematurely or has excess slack, your belt tensioner may be to blame. Replace it with this high-quality Bremmen Parts tensioner to ensure proper tension and air conditioning functionality.

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URO Hydraulic Belt Tensioner - BMW E9X M3, E60 M5, E63 M6
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URO - Corporate Logo
T#:48573724
Part#: 11287835417
In Stock
New Item
$ 120.11 USD
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Hydraulic Belt Tensioner for E9x M3 with S65 engine and E60 M5, E63 M6 with S85 engine. This oil-filled tensioner keeps the main drive belt in the proper tension. Over time, the seals wear, allowing fluid to leak out and the tensioner then 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.
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Mechanical A/C Belt Tensioner Assembly
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Bremmen Parts - Corporate Logo
T#:32350880
Part#: 11287512758
In Stock
Sale - Save 20% $ 50.99

This product was last offered at the strikethrough price on
05-03-2026

$ 40.79 USD
Free Shipping on orders $49 and up
Sale - Save 20%
$ 50.99

This product was last offered at the strikethrough price on
05-03-2026

$ 40.79 USD
Free Shipping on orders $49 and up
Genuine BMW Mechanical Belt Tensioner -
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Genuine BMW - Corporate Logo
T#:574081
Part#: 11288088632
Ships in 1-2 days
7% off MSRP $ 215.99

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

$ 200.99 USD
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7% off MSRP
$ 215.99

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

$ 200.99 USD
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OEM INA AC Belt Tensioner with Pulley - E46 E39 E60 X3 X5 with M54 en...
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Ina - Corporate Logo
T#:11808
Part#: 11287512758
In Stock
$ 56.99 USD
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$ 56.99 USD
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This is an OEM INA mechanical tensioner for 2003+ BMW's with the M54 or M56 engine. These belt tensioner units are known to fail, and include the tensioner pulley (as shown). OEM Schaeffler (INA, LuK, Ruville, & 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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Genuine BMW Belt Tensioner - E70/1 FXX S/N63 4.4L
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Genuine BMW - Corporate Logo
T#:33665
Part#: 11287549873
In Stock
4% off MSRP $ 179.99

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

$ 172.99 USD
Free Shipping
4% off MSRP
$ 179.99

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

$ 172.99 USD
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Genuine BMW Belt Tensioner
This item fits the following BMW Chassis:
E70 X5M,E71 X6M,E70 X5 X5,E71 X6,F01,F02,F06,F10,F12,F13,F15,F16

Fits BMW Engines including:
N63,N63N,S63,S63N

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Bremmen Belt Tensioner Assembly -- E60 E61 E70 E82 E88 E9X Z4 ...
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Bremmen Parts - Corporate Logo
T#:39497969
Part#: 11287530314
In Stock
Sale - Save 21% $ 54.99

This product was last offered at the strikethrough price on
05-03-2026

$ 43.24 USD
Free Shipping on orders $49 and up
Sale - Save 21%
$ 54.99

This product was last offered at the strikethrough price on
05-03-2026

$ 43.24 USD
Free Shipping on orders $49 and up
This tensioner keeps the belt for the alternator, power steering, and air conditioning taut to provide maximum performance of each system.
Accessory Belt Tensioner Assembly
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Mubea - Corporate Logo
T#:594655
Part#: 11287810807
In Stock
$ 148.50 USD
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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 Assembly
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2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!
URO - Corporate Logo
T#:591622
Part#: 11287563927
In Stock
$ 60.99 USD
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This is the main belt tensioner for A/C, Alternator, and power steering.
Ina Tensioner Damper - E31, E32
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Ina - Corporate Logo
T#:591613
Part#: 11281715626
Ships in 7 Business Days
$ 48.99 USD
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Keeps proper tension on your accessory belt

Ina Water Pump/Alternator Tensioner Pulley - E34, E38, E39
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Ina - Corporate Logo
T#:589744
Part#: 11281731838
In Stock at Vendor
$ 41.38

This product was last offered at the strikethrough price on
06-09-2026

$ 41.35 USD
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$ 41.35 USD
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Keep your alternator turning properly.

OEM Ina Belt Tensioner - E36, Z3 M44 1.9L
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Ina - Corporate Logo
T#:582476
Part#: 11281432104
Ships in 8 Business Days
$ 104.99 USD
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$ 104.99 USD
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Tensioner for the water pump and alternator
OEM INA Adjusting Pulley -- E32 E38 E31 - M70 M73 S70
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Ina - Corporate Logo
T#:19098
Part#: 11281720039
Ships in 7 Business Days
$ 141.99 USD
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$ 141.99 USD
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This is an OEM INA Idler Pulley, also known as the roller pulley or deflection pulley. The idler pulleys are known to be the primary sources for 'belt squealing'. The pulley is also encased in rubber which will crack over time. If left without service the rubber could fail completely, chucking the belt and leaving you stranded. Replacement is a very simple procedure and can be done anytime the fan is off the engine (belt replacement, water pump service, alternator replacement, etc). OEM replacement for BMW part # 11281720039 and 11281715630.

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!


ADJUSTING PULLEY 11281720039 OEM

This item fits the following BMWs:
BMW 7 Series - 750iL
BMW 8 Series - 850i/Ci/Csi

 

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OEM INA A/C Tensioner Pulley -- E36 M44 M42, Z3 S52 M52
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Ina - Corporate Logo
T#:361134
Part#: 11282245087
Ships in 1 day
$ 46.17

This product was last offered at the strikethrough price on
01-03-2026

$ 44.99 USD
Free Shipping on orders $49 and up
$ 44.99 USD
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This is an OEM INA A/C tensioner for the serpentine belt on your BMW. This tensioner keeps the belt for the Air Conditioning taught to provide maximum performance of each system.

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!

Show More Show Less


Genuine BMW A/C Belt Tensioner
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Genuine BMW - Corporate Logo
T#:360607
Part#: 11281717210
Ships in 2 Business Days
7% off MSRP $ 165.99

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

$ 154.99 USD
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7% off MSRP
$ 165.99

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

$ 154.99 USD
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Genuine BMW Mechanical Belt Tensioner - 11287810807 - F15,F25,F30,F31...
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Genuine BMW - Corporate Logo
T#:189103
Part#: 11287810807
Ships in 2 Business Days
7% off MSRP $ 179.99

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

$ 167.99 USD
Free Shipping
7% off MSRP
$ 179.99

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

$ 167.99 USD
Free Shipping


Genuine BMW Mechanical Belt Tensioner -
This item fits the following BMW Chassis:
F15,F25 X3,F30,F31

Fits BMW Engines including:
N57N