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BMW Drive Belts & V-Belts

Your BMW's drive belts are wear items, and will degrade and crack over time. Don't wait until you have a belt failure... don't get stranded! Replacing your BMW's belts, such as the alternator belt, power steering belt, air conditioning AC belt, or serpentine belt is a low cost insurance policy to preventing a break down -- or worse, engine damage. We recommend checking your belts every 10,000 miles. If your belts have excessive cracks, dry rot, missing teeth and/or grooves, are cause noise, it's time for new ones.

While also inspecting your serpentine belts, also check for wear or resistance in the pulleys. The tensioner pulley and deflection pulley are the primary sources for belt squealing. The rubber-isolated pulleys can also break apart, leading to total belt failure. We sell the tensioner and deflection pulleys for the M50 engine family used in the E34, E36, E39, E46, X5, Z3, and Z4.

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Macht Schnell - Corporate Logo
T#:593749
Part#: 10.00.011
Ships in 6 Business Days
$ 349.00 USD
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$ 349.00 USD
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Free additional power to your M3’s rear wheels without sacrificing or compromising your BMW’s reliability. Machined from 6061-T6 aerospace aluminum, Macht Schnell Performance Underdrive Pulleys are strong as well as lightweight to limit parasitic drag from the accessories within a moderate level for maximum performance on or off the track. After machining and engraving, pulleys are then T3 hard anodized for additional strength, anti-corrosion & wear resistance. Our DualDrive design replaces the Crank Accessory & Power Steering Pulleys, resulting in an additional 9-14 HP and 7-9ft. lbs TQ gain for the M3. Gains are due to a reduction in power required to turn accessories; an increase in accessories lifespan due to lower speed will also result. All factory harmonics/balancing are undisturbed. Macht Schnell Performance Underdrive Pulleys have no negative effect on accessory operation and comes fully equipped with new belts. Already have this kit and need new belts? See T#14491 and T#14489 Performance Underdrive Pulleys Features: DualDrive design allows maximum performance, with minor effect on accessory speed Proper cooling temperatures are retained at proper levels on or off the track Maintains proper alternator speed, allowing sustained levels to sensitive control modules Machined from 6061-T6 aerospace aluminum T3 Hard-Anodized for maximum strength and corrosion/wear resistance No affects to crankshaft dampening or harmonics Simple bolt-on installation
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Febi - Corporate Logo
T#:363804
Part#: 11287838797
Ships on Oct 15, 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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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
Free Shipping on orders $49 and up
$ 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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MINI R56 Drive Wheel for Water Pump
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Febi - Corporate Logo
T#:591822
Part#: 11517619020
In Stock
$ 50.99

This product was last offered at the strikethrough price on
02-16-2026

$ 41.99 USD
Free Shipping on orders $49 and up
$ 41.99 USD
Free Shipping on orders $49 and up

Upgrade your vehicle's performance with the Mini Drive Wheel/Pulley from FEBI, the trusted OES supplier. Designed to mount to the water pump and seamlessly spin it via the drive belt, this essential component ensures optimal functioning of your vehicle's cooling system. It's a reliable replacement for worn-out or damaged parts, offering enhanced durability and efficiency. Invest in FEBI's Mini Drive Wheel/Pulley for a smoother ride and peace of mind on the road.

  • Enhances vehicle performance
  • Reliable replacement for worn-out parts
  • Ensures optimal functioning of the cooling system
  • Manufactured by FEBI, a trusted OES supplier
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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
Free Shipping
$ 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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OEM Febi Idler Pulley - Multiple BMWs
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Febi - Corporate Logo
T#:382342
Part#: 11287841228
In Stock
$ 48.99 USD
Free Shipping on orders $49 and up
$ 48.99 USD
Free Shipping on orders $49 and up
This is an OEM Febi 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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Mubea - Corporate Logo
T#:594655
Part#: 11287810807
In Stock at Vendor
$ 148.53

This product was last offered at the strikethrough price on
07-15-2026

$ 136.50 USD
Free Shipping on orders $49 and up
$ 136.50 USD
Free Shipping on orders $49 and up
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.
Dinan - Corporate Logo
T#:21078444
Part#: D561-0006
Ships in 6 Business Days
11% off MSRP $ 71.99

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

$ 63.99 USD
Free Shipping
11% off MSRP
$ 71.99

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

$ 63.99 USD
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Replacement Belt for Underdrive Pulley Kit (D560-0001). This belt drives the alternator and water pump.

Dinan - Corporate Logo
T#:21078443
Part#: D561-0005
Ships in 6 Business Days
11% off MSRP $ 71.99

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

$ 63.99 USD
Free Shipping
11% off MSRP
$ 71.99

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

$ 63.99 USD
Free Shipping
Replacement Belt for Underdrive Pulley Kit (D560-0001). This belt attaches to the power steering and air conditioner.

Febi Water Pump Pulley - E39, E46, E53, E60, E83, Z3, Z4
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Febi - Corporate Logo
T#:373752
Part#: 11511436590
In Stock at Vendor
$ 40.99 USD
Free Shipping on orders $49 and up
$ 40.99 USD
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A common failing piece due to the plastic design.
Febi Water Pump Pulley - E34, E36, E39, Z3
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Febi - Corporate Logo
T#:381779
Part#: 11511730554
In Stock at Vendor
$ 39.51 USD
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$ 39.51 USD
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Located behind the fan blade, fan clutch bolts to this pulley
BMW E9X M3 Replacement Belt For Underdrive Pulley Kit - (D560-0004) ...
Call In Or Chat For Best Price!
Call In, Chat, Or Email, For Best Price! Limited Time Only!
Dinan - Corporate Logo
T#:586064
Part#: D561-0002
Ships in 6 Business Days
11% off MSRP $ 142.99

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

$ 126.99 USD
Free Shipping
11% off MSRP
$ 142.99

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

$ 126.99 USD
Free Shipping

BMW E9X M3 Replacement Belt For Underdrive Pulley Kit - (D560-0004) is an essential component designed specifically for the Underdrive Pulley Kit. This belt is one of the two required for optimal performance of the kit.

  • Designed for Precision: Tailored to fit the BMW E9X M3 Underdrive Pulley Kit perfectly.
  • High-Quality Construction: Built to withstand the demands of high-performance driving.
  • Optimal Performance: Ensures smooth operation and reliable power delivery.
  • Easy Replacement: Simple to install, making maintenance straightforward.
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Febi - Corporate Logo
T#:381781
Part#: 11517504077
In Stock at Vendor
$ 42.99

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

$ 33.38 USD
Free Shipping on orders $49 and up
$ 33.38 USD
Free Shipping on orders $49 and up
Replace your cracked or broken pulley
E9X M3 6/2008+ Dinan Underdrive Pulley Kit
Call In Or Chat For Best Price!
Dinan - Corporate Logo
T#:389532
Part#: D560-0004
Ships in 6 Business Days
11% off MSRP $ 506.99

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

$ 449.99 USD
Free Shipping
11% off MSRP
$ 506.99

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

$ 449.99 USD
Free Shipping
Crank Pulley With Dampener
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Febi - Corporate Logo
T#:591627
Part#: 11237562801
In Stock
$ 97.71

This product was last offered at the strikethrough price on
05-11-2026

$ 68.99 USD
Free Shipping
$ 68.99 USD
Free Shipping

Smooth out rotational vibrations and maintain optimal engine performance with this pulley-driven unit for your Mini. Over time, wear and drying out can lead to unusual noises near the passenger's side oil pan, indicating the need for replacement. Ensure seamless operation by replacing this unit when necessary, and don't forget to change the hex bolts for comprehensive maintenance.

  • Reduces rotational vibrations for smoother engine operation
  • Prevents unusual noises near the passenger's side oil pan
  • Ensures optimal engine performance and longevity
  • Replacement recommended to maintain engine health
  • Hex bolts replacement advised for thorough maintenance
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Dinan - Corporate Logo
T#:21078436
Part#: D560-0001
Ships in 6 Business Days
11% off MSRP $ 506.99

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

$ 449.99 USD
Free Shipping on orders $49 and up
11% off MSRP
$ 506.99

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

$ 449.99 USD
Free Shipping on orders $49 and up
Dinan's lightweight billet aluminum crankshaft pulley underdrives each of the accessories by 13 percent, reducing parasitic drag on the engine for a 6 HP @ 8000 RPM and 4 lb-ft torque @ 8000 RPM gain on a stock vehicle. The Dinan underdrive pulley retains the factory harmonic crankshaft damper, eliminating vibration that might otherwise damage the crankshaft. The kit includes all of the necessary mounting hardware, a lightweight pulley, and shorter belts. This product is backed by our industry-leading 4 year/50,000 mile warranty so you can rest assured that you are purchasing the best quality product for your BMW. Features: All accessories are underdriven by 13% to decrease drag on the engine. Lightweight billet aluminum crankshaft pulley, black anodized and engraved. Includes mounting hardware and shorter belts.
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Dinan - Corporate Logo
T#:586065
Part#: D561-0007
Ships in 6 Business Days
11% off MSRP $ 107.99

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

$ 95.99 USD
Free Shipping
11% off MSRP
$ 107.99

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

$ 95.99 USD
Free Shipping
Febi - Corporate Logo
T#:382330
Part#: 11237568345
Ships on Oct 15, 2026
$ 270.99 USD
Free Shipping
$ 270.99 USD
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Drives accessories; located at the end of the crankshaft

Febi - Corporate Logo
T#:381684
Part#: 11281427252
Ships on Oct 15, 2026
$ 78.99 USD
Free Shipping on orders $49 and up
$ 78.99 USD
Free Shipping on orders $49 and up

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.

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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Febi - Corporate Logo
T#:382335
Part#: 11281748131
Ships on Oct 15, 2026
$ 31.99 USD
Free Shipping on orders $49 and up
Replacement is recommend with every belt service

Febi - Corporate Logo
T#:381700
Part#: 11287512758
Back Ordered
$ 75.99 USD
Free Shipping on orders $49 and up
$ 75.99 USD
Free Shipping on orders $49 and up
Complete tensioner assembly with roller

Mubea - Corporate Logo
T#:31622553
Part#: 11288479475
Ships in 4 Business Days
$ 101.99

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

$ 98.99 USD
Free Shipping on orders $49 and up
$ 98.99 USD
Free Shipping on orders $49 and up
Mubea - Corporate Logo
T#:1195871
Part#: 11287799851
In Stock
$ 123.99

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

$ 88.99 USD
Free Shipping
$ 88.99 USD
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Original equipment German-made tensioner for alternator, A/C and power steering system
Febi Tensioner Pulley - E90
We Price Match - Give Us A Call or Chat!
Febi - Corporate Logo
T#:382341
Part#: 11287807021
In Stock at Vendor
$ 101.99

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

$ 88.99 USD
Free Shipping
$ 88.99 USD
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Does not include tensioner


Lower Idler Pulley
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Febi - Corporate Logo
T#:374230
Part#: 11287557851
In Stock at Vendor
$ 64.99 USD
Free Shipping
$ 64.99 USD
Free Shipping
Keep your ultimate driving machine performing at its peak with this heavy-duty replacement belt deflection pulley from Febi.
Dinan - Corporate Logo
T#:586063
Part#: D561-0003
Ships in 6 Business Days
11% off MSRP $ 71.99

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

$ 63.99 USD
Free Shipping
11% off MSRP
$ 71.99

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

$ 63.99 USD
Free Shipping
Febi Accessory Belt Tensioner Assembly
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Febi - Corporate Logo
T#:373809
Part#: 11287563927
In Stock at Vendor
$ 122.95 USD
Free Shipping
$ 122.95 USD
Free Shipping
This is the main belt tensioner for A/C, Alternator, and power steering.

OEM Febi Accessory Belt Tensioner Assembly - BMW N20 2.0L
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Febi - Corporate Logo
T#:38419107
Part#: 11287594969
In Stock at Vendor
$ 75.99 USD
Free Shipping on orders $49 and up
This is the main belt tensioner for the accessory belt.

Mubea - Corporate Logo
T#:26971839
Part#: 11288580360
In Stock at Vendor
$ 177.99

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

$ 158.99 USD
Free Shipping on orders $49 and up
$ 158.99 USD
Free Shipping on orders $49 and up
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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Febi Mechanical A/C Belt Tensioner Assembly - BMW M52TU M54
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Febi - Corporate Logo
T#:38419099
Part#: 11281433571
Ships in 1-2 days
$ 64.99 USD
Free Shipping on orders $49 and up
$ 64.99 USD
Free Shipping on orders $49 and up
Keeping all of your belts tight is imperative to making everything in your vehicle functioning. If your A/C belt tensioner pulley is not keeping enough tension on your belt, your entire A/C system won't work as effectively. A usual sign that your tensioner needs replacing is if your belt keeps slipping causing the system to "squeal".
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Genuine BMW Motorsport - Corporate Logo
T#:396369
Part#: 12311311449KT
Ships on Aug 20, 2026
$ 1,696.99 USD
Free Shipping on orders $49 and up

Group A racecars were the top of their class in both touring car and rally racing. Heavily modified and extremely fast these cars set out to demonstrate the best of what a manufacturer could do on the racetrack. It was the predecessor to the current DTM class racing and set a standard for many other divisions of motorsport to follow.  

One of the weaker points of the S14 engine, when speaking from a racing standpoint is the belt drive system. While fine for a street going car, a V-belt is not suitable for high RPM applications. On the track, most of your time will be spent in the higher rev range which puts extreme amounts of stress on the factory setup. BMW realised this and came up with a solution that involved doing away with the V belt system and using a 6 rib serpentine style instead.

Extremely resistant to slippage and failure this design holds up much better the abuse of track duty and won't leave you stranded and waiting for tow back to the pit. Additionally, this kit does not accommodate and a/c compressor and the alternator and waterpump are underdriven by way of slightly larger pulleys. Combined, this puts less of a load on the crankshaft which leads to more efficient power delivery to the ground. If you track you E30 M3, this is an essential upgrade and until now was extremely difficult to source. Do not skip this pivotal step in your engine build or overhaul and get a leg up on the competition the Group A way.
Please note this kit is special order and in non-returnable

Features:

  • Kit replaces all engine pulleys and crank damper
  • Includes 6 rib serpentine belt
  • Underdriven waterpump and alternator pulleys
  • Recommended for off road and racing use only 

This kit fits the following BMWs:
1986-1992 BMW M3 All 
 

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Febi - Corporate Logo
T#:38452839
Part#: 11237516385
Special Order: No Guaranteed ETA
$ 251.99 USD
$ 251.99 USD
Every time the cylinders fire, torque is transferred into the crankshaft. The crankshaft deflects under this torque, which sets up vibrations when the torque is released. At certain engine speeds the torque imparted by the cylinders are in sync with the vibrations in the crankshaft, which results in a phenomenon called resonance This resonance causes stress beyond what the crankshaft can withstand, resulting in crankshaft failure. The accessory pulley acts as a balancer and prevents these vibrations from destroying your crankshaft.
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Accessory Belt Tensioner Assembly
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Febi - Corporate Logo
T#:578360
Part#: 11288604266
Special Order: No Guaranteed ETA
$ 70.00 USD
Free Shipping
$ 70.00 USD
Free Shipping
Keep your N55 or S55-powered ultimate driving machine running at peak performance with this premium replacement automatic belt tensioner from Febi Bilstein.

BMW idler pulley
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Febi - Corporate Logo
T#:38385319
Part#: 11287589886
Special Order: No Guaranteed ETA
$ 63.99 USD
$ 63.99 USD
If your accessory belt idler pulley shows signs of excessive wear—such as wobbling, grinding, or squealing from a failing bearing—it should be replaced before it leads to belt failure. When replacing your idler pulley, it's a good time to inspect other belt drive components like the tensioner and belt for wear. Turner Motorsports offers a full selection of belts, tensioners, pulleys, and related hardware to keep your BMW’s belt drive system running smoothly.
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Febi - Corporate Logo
T#:381702
Part#: 11287530314
Special Order: No Guaranteed ETA
$ 112.99 USD
Free Shipping
$ 112.99 USD
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Complete tensioner assembly
BMW Tensioner Assembly
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Febi - Corporate Logo
T#:38419072
Part#: 11287582761
Special Order: No Guaranteed ETA
$ 122.99 USD
$ 122.99 USD
Genuine BMW Mechanical Belt Tensioner - This item fits the following BMW Chassis: F10,F25 X3 Fits BMW Engines including: N52N


Febi - Corporate Logo
T#:55066632
Part#: 1004202
Special Order: No Guaranteed ETA
New Item
$ 154.99 USD
Free Shipping on orders $49 and up
This replacement crankshaft harmonic balancer from febi bilstein is designed to restore factory-level drivetrain refinement and protect your engine.
Febi - Corporate Logo
T#:56110333
Part#: 11238602800
Special Order: No Guaranteed ETA
New Item
$ 216.99 USD
Free Shipping on orders $49 and up
Maintain your BMW's smooth engine dynamics and accessory belt reliability with this OE-matching quality replacement crankshaft pulley from Febi Bilstein.
BMW auxiliary belt
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Febi - Corporate Logo
T#:16242197
Part#: 11281437475
Special Order: No Guaranteed ETA
$ 18.99 USD
$ 18.99 USD