BMW Engine Parts for BMW Z4 M Roadster S54 (2003-2008)

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Turner Motorsport has everything you need to upgrade your BMW through our stages of performance or to keep your car in peak condition with our range of the latest in proven OEM cooling parts. Upgrade your cooling system and engine performance with the selections below to give your BMW a performance and reliability advantage.

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Ina - Corporate Logo
T#:2045
Part#: 11281748131
In Stock
$ 20.25 USD
Free Shipping on orders $49 and up
$ 20.25 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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Timing Chain Tensioner INA- M52 2.5L & 2.8L / S54 3.2L
We Price Match - Give Us A Call or Chat!
Ina - Corporate Logo
T#:403736
Part#: 11317838675
In Stock
$ 139.99

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

$ 95.99 USD
Free Shipping
$ 95.99 USD
Free Shipping

Turner Motorsport BMW Timing Chain Tensioner Replacement

Introducing the BMW Timing Chain Tensioner Replacement by Turner Motorsport, a vital component to maintain optimal tension and prevent timing chain issues. Engineered for reliability, this replacement ensures the proper functioning of your cam gears and crank, preventing potential engine damage.

Benefits:

  • Crucial for timing chain tension
  • Prevents chain skipping
  • Safeguards against catastrophic engine damage
  • Quiets noisy chains for a smoother engine operation

Replace your BMW's timing chain tensioner with this Turner Motorsport solution to keep your engine running smoothly.

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Ina - Corporate Logo
T#:2479
Part#: 11281433571
In Stock
$ 68.91

This product was last offered at the strikethrough price on
10-02-2026

$ 67.76 USD
Free Shipping
$ 67.76 USD
Free Shipping

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 Hydraulic Belt Tensioner - E36, E46, E39 6-cyl
We Price Match - Give Us A Call or Chat!
Ina - Corporate Logo
T#:1603
Part#: 11281717188
In Stock
$ 79.99

This product was last offered at the strikethrough price on
07-29-2026

$ 56.99 USD
Free Shipping
$ 56.99 USD
Free Shipping

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 Idler Pulley - Multiple BMWs
We Price Match - Give Us A Call or Chat!
Ina - Corporate Logo
T#:1626
Part#: 11287841228
In Stock
$ 18.99 USD
Free Shipping on orders $49 and up
$ 18.99 USD
Free Shipping on orders $49 and up
This is an OEM INA Upper Idler Pulley, also known as the roller pulley or deflection pulley. The upper and lower 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).
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Ina - Corporate Logo
T#:393585
Part#: 12311713153
In Stock
$ 10.99 USD
Free Shipping on orders $49 and up

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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Launch - Corporate Logo
T#:59477505
Part#: 301190908
Ships in 5 Business Days
New Item
9% off MSRP $ 5,495.99

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

$ 4,999.99 USD
9% off MSRP
$ 5,495.99

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

$ 4,999.99 USD
The Launch Tech X-431 Torque AutoHD Pro is the ultimate diagnostic powerhouse designed for shops that do it all. Built to handle the demands of mixed fleets, this rugged tablet bridges the gap between automotive and commercial vehicle repair, offering OE-level diagnostics for everything from daily drivers to Class 1–8 heavy-duty trucks.
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Launch - Corporate Logo
T#:59477502
Part#: 301050822
Ships in 5 Business Days
New Item
22% off MSRP $ 449.99

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

$ 350.00 USD
22% off MSRP
$ 449.99

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

$ 350.00 USD
The Launch Tech Millennium Master 2.0 steps up from basic code readers to offer a comprehensive diagnostic solution for both serious DIY enthusiasts and professional technicians. Moving beyond simple emissions codes, this scanner provides full system diagnostics, allowing you to read and clear fault codes and view live data across your vehicle's entire network.
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Launch - Corporate Logo
T#:59477533
Part#: 321195101
Ships in 5 Business Days
New Item
23% off MSRP $ 2,595.99

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

$ 2,000.00 USD
23% off MSRP
$ 2,595.99

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

$ 2,000.00 USD
The Launch Tech X-431 Torque Link perfectly balances high-end functionality and exceptional value for growing repair shops and serious technicians. Bridging the gap between entry-level scanners and ultra-premium tablets, the Torque Link brings true professional-grade diagnostics—including advanced topology mapping—to a rugged, highly capable 10.1-inch platform. Powered by a fast 2.0GHz Quad-Core processor, 4GB of RAM, and a generous 128GB of internal storage, this Android 10 tablet is designed to keep up with busy days in the bay. Its standout feature is the included SmartLink C VCI, which not only provides wireless Bluetooth communication and CAN FD/DoIP protocol support but also acts as a J2534 passthrough device for dealer-level module programming. With built-in features like AutoAuth secure gateway access, VW/Audi Guided Functions, bi-directional active testing, and massive expandability for Heavy-Duty and ADAS calibration, the Torque Link handles complex repairs efficiently and reliably.
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Launch - Corporate Logo
T#:59477501
Part#: 341051503
Ships in 5 Business Days
New Item
5% off MSRP $ 79.99

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

$ 75.99 USD
5% off MSRP
$ 79.99

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

$ 75.99 USD
Whether you are a DIY enthusiast looking to handle your own check engine lights or a professional technician needing a quick, reliable backup tool, the Launch Tech Millennium OBD is a highly capable and cost-effective solution. Designed to provide essential vehicle diagnostics without the bloated price tag, this scanner gets straight to the point.
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Launch - Corporate Logo
T#:59477534
Part#: 702030019
Ships in 5 Business Days
New Item
5% off MSRP $ 599.99

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

$ 569.99 USD
5% off MSRP
$ 599.99

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

$ 569.99 USD
The Launch Tech Tread Master 2.0 revolutionizes tire inspection for workshops and fleet maintenance professionals. Moving beyond manual analog gauges, this handheld device utilizes advanced Class 2 laser scanning to deliver precision 1/32nd-inch real-time tread depth measurements in roughly 3 seconds per tire.
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Launch - Corporate Logo
T#:59477507
Part#: 301050830
Ships in 5 Business Days
New Item
14% off MSRP $ 699.99

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

$ 599.99 USD
14% off MSRP
$ 699.99

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

$ 599.99 USD
Designed specifically for heavy-duty diesel technicians, the Launch Tech Millennium HD ProA is a highly portable, Android-based diagnostic scanner that packs serious capability into a compact design. Whether you are in the shop or on a roadside service call, this tool provides full-system diagnostic coverage for over 50 commercial vehicle brands, ensuring you can quickly identify faults across engines, transmissions, braking systems, and more. Beyond standard HD-OBD code reading, the Millennium HD ProA empowers you to perform 8 essential heavy-duty service functions. With Wi-Fi for easy over-the-air updates and Auto VIN detection for rapid vehicle identification, it is a versatile, cost-effective solution for maintaining commercial fleets.
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Launch - Corporate Logo
T#:59477503
Part#: 301050768
Ships in 5 Business Days
New Item
44% off MSRP $ 799.99

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

$ 449.00 USD
44% off MSRP
$ 799.99

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

$ 449.00 USD
Designed to bridge the gap between advanced DIY capability and professional shop requirements, the Launch Tech Millennium Max is a powerful bi-directional scan tool packaged in a rugged, job-site-ready tablet. This versatile scanner moves beyond simply reading and clearing codes—it gives you the power of active testing and ECU control to command vehicle components and pinpoint issues faster.
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Launch - Corporate Logo
T#:59477499
Part#: 307010408
Ships in 5 Business Days
New Item
17% off MSRP $ 35.99

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

$ 29.99 USD
17% off MSRP
$ 35.99

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

$ 29.99 USD
Whether you are a weekend DIY warrior or just looking to save a trip to the mechanic every time a check engine light pops on, the Launch Tech Millennium 30 Plus is the perfect entry-level diagnostic companion. Designed for budget-conscious users who still demand accuracy and reliability, this compact scanner delivers essential vehicle diagnostics right to the palm of your hand. Don't let the compact size fool you—this lightweight unit packs all 10 OBD2 test modes, allowing you to read and clear fault codes, view live data, and monitor your battery's health without breaking the bank.
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Launch - Corporate Logo
T#:59477531
Part#: 321195201
Ships in 5 Business Days
New Item
19% off MSRP $ 1,595.99

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

$ 1,299.99 USD
19% off MSRP
$ 1,595.99

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

$ 1,299.99 USD
The Launch Tech X-431 Turbo III is the ultimate everyday companion for general repair shops, mobile mechanics, and advanced enthusiasts who need professional-level diagnostics without the bulk. Featuring an 8-inch touchscreen and a durable, compact design with an adjustable kickstand, it easily navigates the tight spaces of an engine bay or interior while delivering comprehensive, full-system diagnostics.
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Launch - Corporate Logo
T#:59477532
Part#: 341184002
Ships in 5 Business Days
New Item
13% off MSRP $ 5,995.99

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

$ 5,196.99 USD
13% off MSRP
$ 5,995.99

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

$ 5,196.99 USD
For professional technicians who demand the absolute best in speed, coverage, and durability, the Launch Tech X-431 Throttle V is the ultimate diagnostic powerhouse. Built to survive the harsh environment of a busy shop floor, the Throttle V features an IP65-rated water and dust-resistant housing, ensuring your investment is protected against spills, drops, and grime. The Throttle V dominates complex diagnostics with its massive 13.6-inch 2K high-definition touchscreen, making it incredibly easy to view live data streams, read OE-level wiring diagrams, and utilize the advanced Smart Topology View. This feature visually maps all vehicle modules in a single diagram, allowing you to instantly spot communication faults across the entire network. Powered by a blistering 2.0GHz Octa-Core processor, an enormous 12GB of RAM, and 512GB of storage, this Android 13 tablet effortlessly handles multitasking and stores thousands of diagnostic reports without breaking a sweat. With the included SmartLink C VCI, you get seamless Bluetooth communication, dual-band Wi-Fi, and support for the latest protocols including CAN FD, DoIP, and J2534 passthrough programming.
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Launch - Corporate Logo
T#:59477511
Part#: 307020135
Ships in 5 Business Days
New Item
20% off MSRP $ 249.99

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

$ 199.00 USD
20% off MSRP
$ 249.99

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

$ 199.00 USD
The Launch Tech BST860S is a standalone, plug-and-play battery testing solution designed for the fast-paced environment of professional repair shops. When you need to quickly assess a battery's health and provide tangible proof to a customer, the BST860S delivers. Its standout feature is the built-in thermal printer, allowing you to instantly print a comprehensive, easy-to-read health report right at the fender.
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Launch - Corporate Logo
T#:59477509
Part#: 301180946
Ships in 5 Business Days
New Item
12% off MSRP $ 99.99

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

$ 88.00 USD
12% off MSRP
$ 99.99

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

$ 88.00 USD
Whether you are a professional technician performing routine inspections or a DIY enthusiast diagnosing a no-start condition, the Launch Tech BST360 makes battery testing fast, safe, and convenient. This compact, wireless tester eliminates the need for bulky equipment, turning your smartphone or compatible Launch X-431 diagnostic scanner into a powerful battery analysis system.
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Ina - Corporate Logo
T#:42301988
Part#: ZC0107
Ships in 8 Business Days
$ 20.99 USD
Free Shipping on orders $49 and up
Ensure peak lubrication performance and long-term engine reliability with the OEM INA Engine Oil Pump Chain