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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Hydraulic Alternator Belt Tensioner Assembly
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URO - Corporate Logo
T#:396757
Part#: 11287838797
In Stock
$ 53.99 USD
Free Shipping on orders $49 and up
Febi - Corporate Logo
T#:363804
Part#: 11287838797
Ships on Feb 10, 2027
$ 83.99 USD
Free Shipping
$ 83.99 USD
Free Shipping
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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URO Aluminum Water Pump Pulley - E39, E46, E53, E60, E83, Z3, Z4 ...
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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

Water Pump Pulley
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URO - Corporate Logo
T#:638798
Part#: 11517840403
Ships in 2 Business Days
$ 57.99 USD
Free Shipping on orders $49 and up

OEM Febi Idler Pulley - Multiple BMWs
We Price Match - Give Us A Call or Chat!
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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Febi Water Pump Pulley - E39, E46, E53, E60, E83, Z3, Z4
We Price Match - Give Us A Call or Chat!
Febi - Corporate Logo
T#:373752
Part#: 11511436590
In Stock
$ 40.99

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

$ 30.99 USD
Free Shipping on orders $49 and up
$ 30.99 USD
Free Shipping on orders $49 and up
A common failing piece due to the plastic design.

Rein - Corporate Logo
T#:591711
Part#: 11511436590
In Stock
$ 50.99

This product was last offered at the strikethrough price on
10-22-2026

$ 46.99 USD
Free Shipping on orders $49 and up
$ 46.99 USD
Free Shipping on orders $49 and up
A common failing piece due to the plastic design.
Mechanical Alternator Belt Tensioner Assembly
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URO - Corporate Logo
T#:371980
Part#: 11281427252
Ships in 2 Business Days
$ 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.

Mechanical A/C Belt Tensioner Assembly
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URO - Corporate Logo
T#:384308
Part#: 11287512758
Ships in 2 Business Days
$ 43.99 USD
Free Shipping on orders $49 and up
Complete tensioner assembly with roller

Belt Tensioner Conversion Kit
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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
Rein - Corporate Logo
T#:53750207
Part#: PKP0124
In Stock
New Item
$ 41.99 USD
Free Shipping on orders $49 and up
$ 41.99 USD
Free Shipping on orders $49 and up
Upgrade the Plastic Pulley in Your BMW with an All Aluminum Construction Replacement from Rein
Mechanical A/C Belt Tensioner Assembly
For vehicles with production date up to 09/2002
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URO - Corporate Logo
T#:361998
Part#: 11281433571
Ships in 2 Business Days
$ 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


Febi Mechanical A/C Belt Tensioner Assembly - E39, E46, E53, E60, E83...
For vehicles with production date from 09/2002
We Price Match - Give Us A Call or Chat!
Febi - Corporate Logo
T#:381700
Part#: 11287512758
Ships on Feb 10, 2027
$ 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
Febi - Corporate Logo
T#:381684
Part#: 11281427252
Ships in 2 Business Days
$ 82.99

This product was last offered at the strikethrough price on
10-27-2026

$ 72.99 USD
Free Shipping on orders $49 and up
$ 72.99 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 Feb 10, 2027
$ 31.99 USD
Free Shipping on orders $49 and up
Replacement is recommend with every belt service

Rein - Corporate Logo
T#:38161721
Part#: 11237513862
Ships in 4 Business Days
$ 92.99 USD
Free Shipping on orders $49 and up

Drive Belt Pulley Cap
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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.
Rein Vibration Damper - 11231438995 - E36, E46, E39, E53
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Rein - Corporate Logo
T#:38195378
Part#: 11231438995
Ships in 4 Business Days
$ 112.99 USD
Free Shipping on orders $49 and up

Febi Mechanical A/C Belt Tensioner Assembly - BMW M52TU M54
For vehicles with production date to 09/2002
We Price Match - Give Us A Call or Chat!
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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BMW auxiliary belt
We Price Match - Give Us A Call or Chat!
Febi - Corporate Logo
T#:16242197
Part#: 11281437475
Special Order: No Guaranteed ETA
$ 18.99 USD
Free Shipping on orders $49 and up
$ 18.99 USD
Free Shipping on orders $49 and up

Fluidampr - Corporate Logo
T#:58271027
Part#: 843311
Back Ordered
New Item
$ 701.99 USD
Free Shipping on orders $49 and up
Protect your BMW M50 I6 engine from harmful torsional vibration with a Fluidampr viscous damper designed for high-performance street, drifting, autocross, and road racing applications. Increased torque, RPM and rotating assembly changes can reduce the effectiveness of stock elastomer-style dampers. Fluidampr viscous damping technology helps control crankshaft harmonics across the entire RPM range to support long-term engine durability, accessory drive stability and reduced wear on critical components.
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Fluidampr - Corporate Logo
T#:58271028
Part#: 843301
Back Ordered
New Item
$ 627.99 USD
Free Shipping on orders $49 and up
Protect your BMW M52 or M54 I6 engine from harmful torsional vibration with a Fluidampr viscous damper designed for high-performance street, drifting, autocross, and road racing applications. Increased torque, RPM and rotating assembly changes can reduce the effectiveness of stock elastomer-style dampers. Fluidampr viscous damping technology helps control crankshaft harmonics across the entire RPM range to support long-term engine durability, accessory drive stability and reduced wear on critical components.
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