BMW Drive Belts & V-Belts for BMW 3 Series E46 (1999-2005)

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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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OEM Febi Idler Pulley - Multiple BMWs
OEM Febi Idler Pulley - Multiple BMWs
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Febi - Corporate Logo
T#:382342
Part#: 11287841228
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$ 48.99 USD
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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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S54 Turner Motorsport Ultimate Power Pulley And Drive Belt Overhaul System
S54 Turner Motorsport Ultimate Power Pulley And Drive Belt Overhaul S...
10X Entries Into Our F80 M3 Sweepstakes
Packaged by Turner - Corporate Logo
T#:15710772
Part#: 11281730349-KT
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Sale - Save 1% $ 499.99

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05-03-2026

$ 494.69 USD
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$ 499.99

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The idea of power pulleys is simple. The less effort the engine puts into running accessories such as the water pump, power steering, pump alternator etc., the more of that power can be used elsewhere - your wheels! The way this is done by reducing the rotation of the pulleys by as much as 10-20%! The end result is more horsepower at your disposal. Turner has done extensive testing (on and off the track), to ensure that the accessory systems still function as intended and without failure. These pulleys offer an excellent compromise of power gains, reliability and performance. All Turner pulleys are constructed of high quality T-6061 aluminum for durability and longevity. They are also finished in a black hard anodizing, which is highly resistant to wear including chemical and heat exposure. They have been designed to carry stock-like aesthetics, but with increased strength properties and lighter weight. Because of the durable aluminum construction, you can also put the worries of a serious plastic failure to rest. These pulleys will last, all the while increasing horsepower too! While you're installing your Power Pulley Kit, it makes sense to overhaul your Accessory Belt System as well, so this kit includes our Accessory Belt Kit as well.
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Hydraulic Alternator Belt Tensioner Conversion Kit
Hydraulic Alternator Belt Tensioner Conversion Kit
10X Entries Into Our F80 M3 Sweepstakes
Packaged by Turner - Corporate Logo
T#:15710833
Part#: 11287838797-KT
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Sale - Save 1% $ 165.99

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

$ 163.64 USD
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$ 165.99

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The original mechanical design is has been discontinued by BMW. So now Turner offers this complete hydraulic tensioner conversion kit for your BMW alternator/water pump/power steering belt. Changes the old style mechanical design to the updated hydraulic design recommended by BMW. Includes the following parts Hydraulic Tensioner Adjusting Pulley Caps & Dust Guards Securing Hardware
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Febi Water Pump Pulley - E39, E46, E53, E60, E83, Z3, Z4
Febi Water Pump Pulley - E39, E46, E53, E60, E83, Z3, Z4
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Febi - Corporate Logo
T#:373752
Part#: 11511436590
Ships in 1-2 days
$ 40.99

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

$ 24.99 USD
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$ 24.99 USD
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A common failing piece due to the plastic design.
Accessory Belt Service Kit w/ Kevlar Reinforced Belt - E46 M3, Z3M, Z4M S54 3.2L
Accessory Belt Service Kit w/ Kevlar Reinforced Belt - E46 M3, Z3M, Z...
10X Entries Into Our F80 M3 Sweepstakes
Packaged by Turner - Corporate Logo
T#:23482931
Part#: S54KEVACCKT
In Stock
Sale - Save 2% $ 333.99

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

$ 327.68 USD
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$ 333.99

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Eliminate your squeaking accessory belt pulley and cracked drive belt with this upgraded accessory belt service kit! This kit includes the ECS Kevlar Reinforced Drive Belts, tensioner assemblies, and new tensioner pulleys. ECS Tuning's Red Kevlar Accessory Belts are both an aesthetic improvement and a performance alternative to a traditional belt. Kevlar-reinforced belts experience less elongation over time minimizing the amount of belt adjustment needed as well as offering a higher shock and impact resistance compared to OEM-style belts. Refreshing the rollers and/or tensioners simultaneously is a great way to ensure all vital components of your drive belt system are functioning optimally for years to come!
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Accessory Belt Service Kit w/ Kevlar Reinforced Belt - E46 E39 M54
Accessory Belt Service Kit w/ Kevlar Reinforced Belt - E46 E39 M54 ...
For vehicles with production date from 09/2002
10X Entries Into Our F80 M3 Sweepstakes
Packaged by Turner - Corporate Logo
T#:23482922
Part#: 4PK863ATKT
Back Ordered
Sale - Save 3% $ 254.99

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

$ 246.93 USD
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Sale - Save 3%
$ 254.99

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

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Eliminate your squeaking accessory belt pulley and cracked drive belt with this upgraded accessory belt service kit! This kit includes the ECS Kevlar Reinforced Drive Belts, tensioner assemblies, and new tensioner pulleys. ECS Tuning's Red Kevlar Accessory Belts are both an aesthetic improvement and a performance alternative to a traditional belt. Kevlar-reinforced belts experience less elongation over time minimizing the amount of belt adjustment needed as well as offering a higher shock and impact resistance compared to OEM-style belts. Refreshing the rollers and/or tensioners simultaneously is a great way to ensure all vital components of your drive belt system are functioning optimally for years to come!
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OEM Febi Water Pump/Alternator Mechanical Belt Tensioner with Pulley - E34 E36 E46 E39 E60 E83 E53 Z3 Z4
OEM Febi Water Pump/Alternator Mechanical Belt Tensioner with Pulley ...
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Febi - Corporate Logo
T#:381684
Part#: 11281427252
Ships in 1 Business Day
$ 80.99 USD
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$ 80.99 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.

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 Hydraulic Alternator Belt Tensioner Roller - E36, E39, E46
Febi Hydraulic Alternator Belt Tensioner Roller - E36, E39, E46 ...
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Febi - Corporate Logo
T#:382335
Part#: 11281748131
Ships on Nov 25, 2026
$ 31.99 USD
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$ 31.99 USD
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Replacement is recommend with every belt service
Febi Mechanical A/C Belt Tensioner Assembly - E39, E46, E53, E60, E83, Z4
Febi Mechanical A/C Belt Tensioner Assembly - E39, E46, E53, E60, E83...
For vehicles with production date from 09/2002
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Febi - Corporate Logo
T#:381700
Part#: 11287512758
Ships on Nov 25, 2026
$ 75.99 USD
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$ 75.99 USD
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Complete tensioner assembly with roller
Febi Mechanical A/C Belt Tensioner Assembly - BMW M52TU M54
Febi Mechanical A/C Belt Tensioner Assembly - BMW M52TU M54
For vehicles with production date to 09/2002
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Febi - Corporate Logo
T#:38419099
Part#: 11281433571
Ships in 1-2 days
$ 64.99 USD
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$ 64.99 USD
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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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Performance Accessory Belt Service Kit w/ Kevlar Reinforced Belt - E46 E39 Z3 M52TU M54
Performance Accessory Belt Service Kit w/ Kevlar Reinforced Belt - E4...
For vehicles with production date up to 09/2002
10X Entries Into Our F80 M3 Sweepstakes
Packaged by Turner - Corporate Logo
T#:22097548
Part#: 11281706545TKT
Back Ordered
Sale - Save 8% $ 263.99

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

$ 241.79 USD
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Sale - Save 8%
$ 263.99

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

$ 241.79 USD
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Eliminate your squeaking accessory belt pulley and cracked drive belt with this upgraded accessory belt service kit! This kit includes everything you need to service the belt drive system and keep everything in check, including the updated Hydraulic tensioner to keep your E46 driving like a dream. This kit also includes ECS Tuning's Kevlar reinforced belt for longer life and resistance. ECS Tuning's Red Kevlar Accessory Belts are both an aesthetic improvement and a performance alternative to a traditional belt. Kevlar-reinforced belts experience less elongation over time minimizing the amount of belt adjustment needed as well as offering a higher shock and impact resistance compared to OEM-style belts. Refreshing the rollers and/or tensioners simultaneously is a great way to ensure all vital components of your drive belt system are functioning optimally for years to come!
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