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Tensioner

The belt tensioner is responsible for keeping proper tension on the belt at all times and during all running conditions. When the tensioner ages, it loses some of the spring tension and can allow the belt to slip if left unchecked. Turner Motorsport carries Genuine BMW and high quality aftermarket options to get you back on the road in no time.
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BMW E6X / E8X / E9X / Z4 Cam Bearing Ledge Replacement Kit
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T#:21703017
Part#: N54CAMBRINGKT
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$ 1,630.62

This product was last offered at the strikethrough price on
04-01-2026

$ 1,617.89 USD
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$ 1,617.89 USD
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Maintaining your BMW E6X, E8X, E9X, or Z4 engine health is paramount to ensure optimal performance and longevity. Two crucial components that require periodic attention are the cam bearing ledge and valve cover gasket. Regular servicing of these components, along with other critical elements such as the camshaft O-ring, chain tensioner (with gasket), and oil filter, is imperative to keep your BMW running smoothly. Included in Kit: 1 - Cam Bearing Ledge - Exhaust 29 - Torx Bolt 1 - Genuine Cam Bearing Ledge - Intake 1 - Genuine Cam Bearing Ledge - Exhaust 1 - Valve Cover Gasket 4 - Genuine Camshaft O-rings 7 - Genuine BMW TwinPower Turbo 5W-30 Engine Oil 1 - Assembly Lube 1 - Chain Tensioner - With Gasket Ring 1 - Hengst Oil Filter 2 - Collar Screws Cam Bearing Ledge: The cam bearing ledge is vital for proper camshaft support and lubrication. Over time, wear and tear can compromise its effectiveness, potentially leading to camshaft damage. Servicing this component ensures that your camshaft operates optimally, preventing costly repairs. Valve Cover Gasket: A well-maintained valve cover gasket is essential to prevent oil leaks and maintain proper sealing in the engine. Ignoring gasket issues can lead to oil contamination, loss of engine performance, and even engine damage. Camshaft O-Ring: The camshaft O-ring helps maintain proper oil pressure and prevents oil leakage. A deteriorated O-ring can result in oil seepage, leading to lubrication issues that affect engine performance and longevity. Chain Tensioner (with Gasket Ring): Proper timing chain tension is crucial for engine synchronization. Servicing the chain tensioner and its gasket ensures correct timing, preventing potential engine misfires and damage. Oil Filter: Regularly replacing the oil filter is fundamental to maintaining clean engine oil. Clean oil is essential for lubrication and heat dissipation, safeguarding the engine against wear and tear. Kit is for these BMW models: E60 / E61 - N54 3.0L E82 / E88 - N54 3.0L E90 / E92 / E93 - N54 3.0L Z4 - N54 3.0L
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OEM INA Accessory Belt Tensioner Assembly - N55 S55
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T#:394063
Part#: 11288604266
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$ 53.99 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 INA Water Pump/Alternator Mechanical Belt Tensioner with Pulley -...
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T#:4466
Part#: 11281427252
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$ 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 Timing Belt Tensioner Roller -- E21 E30 E12 E28 E34
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Ina - Corporate Logo
T#:348865
Part#: 11311711153
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$ 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
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$ 60.33

This product was last offered at the strikethrough price on
06-03-2026

$ 60.30 USD
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$ 60.30 USD
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Provides tension between crank pulley and A/C compressor
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 A/C Belt Tensioner with Pulley - BMW E46 E39 E53 Z3 Z4 ...
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Ina - Corporate Logo
T#:2479
Part#: 11281433571
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$ 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 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
$ 82.99 USD
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$ 82.99 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 Water Pump/Alternator Hydraulic Belt Tensioner -- E39 E38 E31...
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Ina - Corporate Logo
T#:12942
Part#: 11281709613
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$ 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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OEM INA Accessory Belt Tensioner Assembly - N55
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Ina - Corporate Logo
T#:386297
Part#: 11287582946
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$ 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 INA A/C Belt Hydraulic Tensioner -- E39 E38 E31 E53
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Ina - Corporate Logo
T#:362596
Part#: 11281745545
In Stock
$ 50.99

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

$ 49.99 USD
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$ 49.99 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 Accessory Belt Tensioner Pulley - Water Pump/Alternator - BMW...
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Ina - Corporate Logo
T#:31059479
Part#: 11287838194KT
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$ 30.99 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 $150 or more compared to the Genuine BMW tensioner.
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OEM INA A/C Belt Tensioner Pulley Assembly -- E39 M5
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Ina - Corporate Logo
T#:362594
Part#: 11281407520
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$ 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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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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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 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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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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OEM INA Adjusting Pulley -- E32 E38 E31 - M70 M73 S70
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Ina - Corporate Logo
T#:19098
Part#: 11281720039
Ships in 8 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 1-2 days
$ 46.17

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

$ 44.99 USD
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$ 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!

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OEM INA Tensioner Pulley Assembly - E34 E32 E38 E31 M60
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Ina - Corporate Logo
T#:371789
Part#: 11281736724
In Stock
$ 303.99

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

$ 273.99 USD
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$ 303.99

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

$ 273.99 USD
Limited Qty Sale
Free Shipping

This is an OEM INA mechanical tensioner for the serpentine belt. This tensioner keeps the belt for the  Air Conditioning taught to provide maximum performance of each system. Replacement for BMW part # 11281736724. 

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 Schaeffler Belt Tensioner Assembly - BMW E90 335d M57
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Ina - Corporate Logo
T#:393576
Part#: 11287786880
In Stock
$ 72.99 USD
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Keeps the accessory belt porperly tensioned to prevent slippage of the belt.

OEM INA Tensioner Pulley - BMW E90 335d M57
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Ina - Corporate Logo
T#:393566
Part#: 11287807021
Ships in 4 Business Days
$ 94.99

This product was last offered at the strikethrough price on
06-01-2026

$ 78.99 USD
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$ 78.99 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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Ina A/C Tensioner Pulley - E31, E34, E38, E39
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T#:587015
Part#: 11281702013
Ships in 8 Business Days
$ 118.99 USD
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$ 118.99 USD
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Keep your A/C belt tight and turning.
OEM INA Mechanical Accessory Belt Tensioner Assembly -- F10 528i F25 ...
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Ina - Corporate Logo
T#:393580
Part#: 11288620022
In Stock at Vendor
$ 72.99 USD
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$ 72.99 USD
Free Shipping

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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Idler Pulley for Water Pump / Alternator Belt - INA
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T#:579836
Part#: 5320293100
Ships in 2 Business Days
$ 31.57 USD
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OEM INA Water Pump/Alternator Tensioner - BMW E60/1 E63/4 E65/6/7 E53...
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T#:361801
Part#: 11287549588
Ships in 1-2 days
$ 69.68 USD
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This is an OEM INA Water Pump Belt Tensioner. It provides pressure to the Water Pump/Alternator Belt to assure maximum performance out of the water pump and alternator and prevent the belt from slipping causing reduced cooling and lower charge output 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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OEM INA Belt Tensioner -- E60/1 E63/4 E65/6
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Ina - Corporate Logo
T#:19309
Part#: 11287549589
Ships in 1-2 days
$ 59.53 USD
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$ 59.53 USD
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This is an OEM INA mechanical tensioner for the serpentine belt. 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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OEM INA Hydraulic Belt Tensioner -- E36 M42
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Ina - Corporate Logo
T#:18864
Part#: 11281247051
Ships in 1-2 days
$ 54.99

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

$ 45.99 USD
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$ 45.99 USD
Free Shipping on orders $49 and up

Hydraulic Belt Tensioner for E36 4-cyl models with M42 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.

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:
BMW 3 Series - 318i, 318i Convertible, 318is, 318ti

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OEM INA Belt Tensioner - E39 540i 1998, E38 740i/li
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Ina - Corporate Logo
T#:362737
Part#: 11281742858
Back Ordered
$ 74.99 USD
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$ 74.99 USD
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This is the tensioner pulley assembly for the serpentine belts on E39 540i and E38 740u with M62 engine. This tensioner keeps the belt for the alternator, power steering and Air Conditioning taught to provide maximum performance of each system. OEM replacement for BMW part # 11281742858 and 11287503424.

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:
4/1997-1998 E38 BMW 740i 740il 
1998 E39 BMW 540i

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OEM INA Tensioner Pulley for Main Drive Belt (Water Pump/Alternator/P...
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Ina - Corporate Logo
T#:2045
Part#: 11281748131
In Stock
$ 19.99 USD
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$ 19.99 USD
Free Shipping on orders $49 and up

This is an OEM INA tensioner pulley, also known as the adjusting pulley and lower pulley. This pulley is mounted on the belt tensioner near the center of the belt assembly. The upper and lower pulleys are known to be the primary sources for 'belt squealing'. This 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).

This pulley is mounted along with the hydraulic belt tensioner but can be replaced on its own. It is used for the main drive belt on the M50-M54 family engines (M50, M50TU, M52, S52, M52TU, M54, M56, and S54 engines). This is the same belt that covers the water pump/alternator/power steering systems. Replacement is a very easy procedure (requires fan removal) and will have your engine purring in no time. Belt replacement is strongly recommended at the same time. If you have a mechanical belt tensioner, the pulley can only be replaced with a new tensioner.

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!

If you need the hydraulic belt tensioner, click here.

This item is 70mm Diameter. Please check the diameter 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 - Only for Hydraulic Tensioner
1999-2000 E46 323i, 323Ci, 328i, 328Ci - Only for Hydraulic Tensioner
2001-2005 E46 325i, 325Ci, 325xi, 330i, 330Ci, 330xi - Only for Hydraulic Tensioner
2001-2006 E46 M3 coupe & convertible - Only for Hydraulic Tensioner
2000-2006 X5 3.0 liter (E53 chassis)
2004 E60 525i, 530i (M54 engine)
1997-2002 Z3 & MZ3 2.5, 2.8, 3.0, M Roadster, M Coupe
2003-2009 Z4 M Coupe and Roadster

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OEM INA Belt tensioner adjuster bearing -- M50 S50 M52 S52 M54 S54 ...
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T#:393585
Part#: 12311713153
In Stock
$ 10.99 USD
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The OEM INA Tensioner Bearing allows the belt tensioner arm to rotate and apply pressure to the serpentine belt. With a bad bearing, the arm may seize up and prevent the tensioner from working properly.

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 Accessory Belt Idler Pulley - E39, E53
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Ina - Corporate Logo
T#:42234666
Part#: FP02931
Ships in 8 Business Days
$ 28.99 USD
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$ 28.99 USD
Free Shipping on orders $49 and up
Ensure your BMW’s accessory drive system remains efficient and reliable with the OEM INA Accessory Belt Idler Pulley, a dependable choice for preventative maintenance or repair.