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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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Vargas Turbo Technologies - Corporate Logo
T#:558795
Part#: VTT-CRANKHUB-1
In Stock
$ 889.99 USD
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$ 889.99 USD
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Under certain conditions, the N55 crank hub likes to spin, without warning and even when the engine is in perfect health. The engineers at Vargas saw and dealt with this problem time and again, and they saw fit to do something about it. This hub uses a proprietary "Spline Lock" technology that uses high tolerance machined splines which press into the crank, and positively lock the hub to the crank. The splines are machined in such a way that rotational forces drive the hub, and splines deeper into the crank meaning when the hub encounters a situation that would normally slip a stock hub the splined hub is driven into the crank to keep it in place (much like a splined extractor). Features: Installs the same as a stock hub Does NOT require the crank to be drilled for pins Manufactured from Harndered 17-4SS We suggest the Crank Hub System ONLY be installed by a qualified shop or technician. Timing tools are 100% REQUIRED if installed improperly engine damage may occur. DISCLAIMER: VTT and ECS are not responsible for any engine damage caused by improper installation, or misuse of the crank hub solution.
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Vargas Turbo Technologies - Corporate Logo
T#:638889
Part#: VTT-CRANKGUARD
In Stock
Starting at $ 89.99 USD
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Starting at $ 89.99 USD
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It is a well-known issue on the BMW N54/55 platforms that your serpentine belt can fail for various reasons. When this happens, there is a high chance of the belt getting sucked behind the front damper pulley and then being pushed past the crank seal into your oil pan. From there it can get sucked into the oil pick up causing total engine failure. Even if you do not lose the engine, it is a COSTLY repair to remove the sub-frame and drop the oil pan to remove the belt. The best way to combat this is to watch for oil leaks and keep up on your maintenance. BUT, even with those preventative measures, pre-mature belt failure can occur. This crank seal guard installs over your front crank seal and will keep the belt from being sucked in if a belt failure does occur. This is a cheap way to ensure you do not end up having to replace your motor from oil starvation due to an ingested belt. Vargas' seal is different from those already on market in two major ways. Firstly, it is not offensively priced. Secondly, it is 100% billet with no welds on the tabs to break, no cheap bent thin steel pieces. 100% Billet 6061-T6 aluminum, anodized black for long-term corrosion resistance. Crank Seal Guard includes: One VTT Billet N54/55 Crank Seal Guard Two extended 12.9 Grade bolts, and two stainless washers We highly recommend you install WITH a crank bolt capture at the same time, as you have to remove the damper anyway. Then you will get the benefit of helping eliminate the dreaded spun crank hub and the crank seal issue
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URO - Corporate Logo
T#:591689
Part#: 11287598833
In Stock
$ 84.99 USD
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$ 84.99 USD
Free Shipping

Friction Wheel for MINI N12 N14 N16 N18 1.6L Engine - URO

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

Benefits:

  • Ensures smooth operation of the water pump
  • Prevents squeaking bearings for quieter engine performance
  • Designed for compatibility with N12 N14 N16 N18 1.6L engines
  • Easy replacement during serpentine belt changes
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URO - Corporate Logo
T#:50066851
Part#: 11288088632
In Stock
New Item
$ 60.99

This product was last offered at the strikethrough price on
08-13-2026

$ 60.97 USD
Free Shipping on orders $49 and up
$ 60.97 USD
Free Shipping on orders $49 and up
Replaces broken or damaged drive belt tensioner.
Vargas Turbo Technologies - Corporate Logo
T#:7292042
Part#: VTT-N54-PSN54
Ships in 2 Business Days
Starting at $ 56.99 USD
Free Shipping on orders $49 and up
Starting at $ 56.99 USD
Free Shipping on orders $49 and up
Vargas has introduced their new Billet Power Steering pulleys for the N54 engine! A well-known issue with the N54 with Hydraulic power steering is the plastic pulley either hitting the subframe, or breaking on its own. This can result in the belt to be ejected from the pulley, and leave you stranded with no serpentine belt. This also increases the chance of sucking the belt into the engine through the front seal. Put an end to the dreaded plastic PS pulley issues with the VTT 100% Billet Aluminum PS pulley. These are constructed from 6061-T6 aluminum and anodize in one of 4 colors (Black, Red, Blue, and Clear) for a great look, and long-lasting finish. These weigh 11oz, very close to the weight of a stock pulley, and are lighter than the cast aluminum versions on the market.
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URO - Corporate Logo
T#:28171559
Part#: 11237573655
In Stock
$ 341.99 USD
Free Shipping on orders $49 and up
A vibration damper is crucial for preventing shock load factors that could damage the crankshaft. If your damper is faulty, opt for this quality replacement from URO Parts for a lasting and comprehensive fix.
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URO - Corporate Logo
T#:591616
Part#: 11281735358
Ships in 1 Business Day
$ 98.99 USD
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$ 98.99 USD
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Reduces vibrations and connects accessories

URO - Corporate Logo
T#:340641
Part#: 11511436590
In Stock
$ 45.99 USD
Free Shipping on orders $49 and up
$ 45.99 USD
Free Shipping on orders $49 and up
An upgrade over commonly failing plastic pulley

URO - Corporate Logo
T#:48573724
Part#: 11287835417
Ships in 1 Business Day
$ 120.11 USD
Free Shipping on orders $49 and up
Hydraulic Belt Tensioner for E9x M3 with S65 engine and E60 M5, E63 M6 with S85 engine. This oil-filled tensioner keeps the main drive belt in the proper tension. Over time, the seals wear, allowing fluid to leak out and the tensioner then becomes frozen or inoperable. Replacement is the best corrective action to take. This can be done during any belt or pulley service or anytime the fan is off the engine.
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URO - Corporate Logo
T#:592383
Part#: 32421722555
Ships in 1 Business Day
$ 90.99 USD
Free Shipping
$ 90.99 USD
Free Shipping
Driven by serpentine accessory belt
URO - Corporate Logo
T#:26271781
Part#: 11288673720
In Stock
$ 29.99 USD
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URO - Corporate Logo
T#:5760271
Part#: 11517619020
Ships in 1 Business Day
$ 42.01 USD
Free Shipping on orders $49 and up
URO - Corporate Logo
T#:591622
Part#: 11287563927
In Stock
$ 60.99 USD
Free Shipping on orders $49 and up
This is the main belt tensioner for A/C, Alternator, and power steering.

URO - Corporate Logo
T#:638798
Part#: 11517840403
Ships in 1 Business Day
$ 57.99 USD
Free Shipping on orders $49 and up

URO - Corporate Logo
T#:593668
Part#: 11237564969
Back Ordered
$ 234.99 USD
Free Shipping
$ 234.99 USD
Free Shipping
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 synch 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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URO - Corporate Logo
T#:37892100
Part#: 11287578675
Ships in 1 Business Day
$ 28.54 USD
Free Shipping on orders $49 and up
The idler pulley serves as a guide and support for the serpentine belt, ensuring it runs smoothly over the entire system.

URO - Corporate Logo
T#:373241
Part#: 11282245087
In Stock
$ 26.99 USD
Free Shipping on orders $49 and up
The A/C drive belt is tightened buy a separate belt tension.
URO - Corporate Logo
T#:600039
Part#: 11287838797K
Back Ordered
$ 82.99 USD
Free Shipping on orders $49 and up
Update from a mechanical tensioner to a hydraulic style tensioner

URO - Corporate Logo
T#:591628
Part#: 11237562801
In Stock
$ 72.00

This product was last offered at the strikethrough price on
07-28-2026

$ 49.78 USD
Free Shipping on orders $49 and up
$ 49.78 USD
Free Shipping on orders $49 and up

Enhance your Mini's engine performance with this essential Engine Harmonic Balancer/Vibration Dampener. Designed to smooth out rotational vibrations from the crankshaft, this pulley-driven unit ensures optimal engine operation. When worn, it may produce unusual noises near the passenger's side oil pan, signaling the need for replacement. For comprehensive maintenance, it's advisable to change the hex bolts along with the unit. Benefit from:

  • Improved engine performance.
  • Reduction of rotational vibrations.
  • Prevention of unusual noises.
  • Compatibility with Mini vehicles.
  • Easy replacement process.
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URO - Corporate Logo
T#:591621
Part#: 11287556251
In Stock
$ 28.89 USD
Free Shipping on orders $49 and up
The higher idler pulley
URO - Corporate Logo
T#:373226
Part#: 11281731220
Ships in 1 Business Day
$ 22.99 USD
Free Shipping on orders $49 and up
$ 22.99 USD
Free Shipping on orders $49 and up
Runs on water pump and alternator belt
URO - Corporate Logo
T#:361998
Part#: 11281433571
Ships in 1 Business Day
$ 53.99 USD
Free Shipping on orders $49 and up
$ 53.99 USD
Free Shipping on orders $49 and up
Complete tensioner assembly with roller


URO - Corporate Logo
T#:591647
Part#: 11287839135
Ships in 1 Business Day
$ 164.99 USD
Free Shipping
$ 164.99 USD
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Includes belt tensioner pulley & lever
URO - Corporate Logo
T#:592822
Part#: 11281720039
Ships in 1 Business Day
$ 29.99 USD
Free Shipping on orders $49 and up
$ 29.99 USD
Free Shipping on orders $49 and up
Complete with pulley
URO - Corporate Logo
T#:384427
Part#: 11287557851
Ships in 1 Business Day
$ 23.99 USD
Free Shipping on orders $49 and up
The lowest of the idler pulleys on the accessory drive belt. Featuring NTN/NSK bearing.

URO - Corporate Logo
T#:583971
Part#: 11287582946
Ships in 1 Business Day
$ 46.99 USD
Free Shipping on orders $49 and up

URO - Corporate Logo
T#:591618
Part#: 11287530314
Ships in 1 Business Day
$ 48.99 USD
Free Shipping on orders $49 and up
Complete tensioner assembly
URO - Corporate Logo
T#:371980
Part#: 11281427252
Ships in 1 Business Day
$ 50.99 USD
Free Shipping on orders $49 and up
$ 50.99 USD
Free Shipping on orders $49 and up
Tensions the belt connecting the water pump, alternator, and power steering pump. Includes roller.

URO - Corporate Logo
T#:37993420
Part#: 11281745545
In Stock
$ 36.99 USD
Free Shipping on orders $49 and up
$ 36.99 USD
Free Shipping on orders $49 and up
URO - Corporate Logo
T#:384307
Part#: 11281742859
Ships in 1 Business Day
$ 43.99 USD
Free Shipping on orders $49 and up
$ 43.99 USD
Free Shipping on orders $49 and up
Keep your A/C belt tight and turning

URO - Corporate Logo
T#:584487
Part#: 11288620210
In Stock
$ 40.99 USD
Free Shipping
$ 40.99 USD
Free Shipping

URO - Corporate Logo
T#:591619
Part#: 11287535860
Ships in 1 Business Day
$ 17.99 USD
Free Shipping on orders $49 and up
Commonly replaced when servicing belts or cooling system, or when it begins to make noise.
Bavarian Autosport - Corporate Logo
T#:16940487
Part#: 11217616164
In Stock
Sale - Save 23% $ 12.99

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

$ 9.99 USD
Free Shipping on orders $49 and up
Sale - Save 23%
$ 12.99

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

$ 9.99 USD
Free Shipping on orders $49 and up
Used to attach the crank pulley / vibration dampener
URO - Corporate Logo
T#:639224
Part#: 11281727159
In Stock
$ 3.99 USD
Free Shipping on orders $49 and up
Replace that missing protective cap and protect your belt tensioner bearing from debris.


URO - Corporate Logo
T#:384308
Part#: 11287512758
In Stock
$ 43.99 USD
Free Shipping on orders $49 and up
Complete tensioner assembly with roller
URO - Corporate Logo
T#:43446142
Part#: 11287578674
Ships in 1 Business Day
$ 25.99 USD
Free Shipping on orders $49 and up
Commonly replaced when servicing belts or the cooling system, or when it begins to make noise.
URO - Corporate Logo
T#:362028
Part#: 11281748131
In Stock
$ 14.83

This product was last offered at the strikethrough price on
04-06-2026

$ 13.99 USD
Free Shipping on orders $49 and up
$ 13.99 USD
Free Shipping on orders $49 and up
Replacement is recommend with every belt service

Bavarian Autosport - Corporate Logo
T#:19792190
Part#: 11211439395
In Stock
Sale - Save 20% $ 18.99

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

$ 15.19 USD
Free Shipping on orders $49 and up
Sale - Save 20%
$ 18.99

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

$ 15.19 USD
Free Shipping on orders $49 and up
Replacement center bolt for the engine crank pulley.

URO - Corporate Logo
T#:37993415
Part#: 11287549873
Ships in 1 Business Day
$ 133.99 USD
Free Shipping on orders $49 and up
Reduces strain on engine components by maintaining proper tension, helping to avoid costly repairs.
URO - Corporate Logo
T#:20617619
Part#: 11287627052
Ships in 1 Business Day
$ 50.99 USD
Free Shipping on orders $49 and up
Maintain the proper tension on accessory drive belt. If you're hearing unusual noise when starting your engine or during everyday driving, this could lead to other problems and other accessories could fail. Get a high quality drive belt tensioner pulley today from Turner Motorsports!
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URO - Corporate Logo
T#:591633
Part#: 11237829906
Back Ordered
$ 74.25 USD
Free Shipping
$ 74.25 USD
Free Shipping
URO - Corporate Logo
T#:26671646
Part#: 11287546163
Ships in 1 Business Day
$ 102.99 USD
Free Shipping on orders $49 and up

Ensure optimal cooling performance and extended belt life with the A/C Compressor Accessory Belt Tensioner. Engineered to deliver consistent tension, this tensioner is the key to maintaining efficient cabin cooling in your vehicle.

  • Crafted with high-quality materials: Ensures durability to withstand daily driving demands.
  • Precise tensioning: Prevents slippage and ensures efficient power transfer for optimal cooling performance.
  • Engineered for smooth operation: Reduces vibration and noise, enhancing driving comfort.
  • OEM-compatible: Provides a perfect fit and functionality.

If you are experiencing a slipping compressor belt, you may notice a loss in cabin cooling performance or a high-pitched noise emitted from the vehicle's engine bay. If you are experiencing either of these issues, it's time to replace your tensioner.

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URO - Corporate Logo
T#:373227
Part#: 11281731838
Ships in 1 Business Day
$ 17.99 USD
Free Shipping on orders $49 and up
$ 17.99 USD
Free Shipping on orders $49 and up
Keep your alternator turning properly.

URO - Corporate Logo
T#:591620
Part#: 11287549589
Ships in 1 Business Day
$ 42.99 USD
Free Shipping on orders $49 and up
$ 42.99 USD
Free Shipping on orders $49 and up
Includes pulley along with spring tensioner
URO - Corporate Logo
T#:587603
Part#: 11287549588
Ships in 1 Business Day
$ 49.99 USD
Free Shipping on orders $49 and up
URO - Corporate Logo
T#:15445582
Part#: 11287549557
Back Ordered
$ 19.99 USD
Free Shipping on orders $49 and up
Commonly replaced when servicing belts or cooling systems, or when it begins to make noise.


URO - Corporate Logo
T#:10291047
Part#: 11287545297
Ships in 1 Business Day
$ 56.99 USD
Free Shipping on orders $49 and up
URO - Corporate Logo
T#:592842
Part#: 11287542887
Ships in 1 Business Day
$ 46.99 USD
Free Shipping on orders $49 and up
Commonly replaced when servicing belts or cooling system, or when it begins to make noise.