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VAC Motorsports - Corporate Logo
T#:29533361
Part#: VACUPPSS543ULG
Ships on Sep 30, 2026
$ 349.99 USD
Free Shipping on orders $49 and up
These pulleys are precision made from domestic USA 6061-T6 Billet Aluminum. They have undergone thousands of hours in testing, race use, and street miles accumulated to show these pulleys work great and give you the edge. Each is precision zero-balanced and inspected for zero-runout for the best performance and to have no adverse effects on reliability, noise, or vibration. This 3 Pulley Race Set is a very popular choice: just like the 2 pulley set, a precision power steering pulley and water pump pulley are included, but VAC includes an additional underdriven alternator pulley for maximum power output on the track. We have seen 11hp and 9 ftlbs to the wheels on otherwise stock racing cars with this kit.
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Gates - Corporate Logo
T#:591610
Part#: 11281433571
Ships on Oct 2, 2026
$ 84.99 USD
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$ 84.99 USD
Free Shipping on orders $49 and up
Complete tensioner assembly with roller
Packaged by Turner - Corporate Logo
T#:393209
Part#: E46S54SIPULLEY
In Stock
Sale - Save 16% $ 1,029.99

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

Starting at $ 870.23 USD
Free Shipping
Sale - Save 16%
$ 1,029.99

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

Starting at $ 870.23 USD
Free Shipping

Shark Injector Performance Software
The enthusiast's choice for over a decade, the Shark Injector's performance is only equaled by its own ease of install! Tune your ECU at the press of a button simply by plugging into the under-dash OBDII diagnostic port, there is no removal of your car's computer; no laptop or cables required. What does the Shark offer?

  • Excellent horsepower and torque gains - peak: 18whp/11wtq, max: 22whp/16wtq
  • Faster and smoother throttle response
  • Top speed limiter removed
  • Extremely easy to install/uninstall
  • Reversible and reusable
  • Elevated 8,250 RPM rev limiter
  • Compatible with 91 octane; 93 recommended

Turner Motorsport Power Pulleys 
Underdrive Power Pulleys work to 'free up' horsepower. Any accessory that spins from the main drive belt is using up power. That's power that could otherwise be used to move the car. By giving some of that power back to the engine, you can make the car faster! We measured 10.7 whp at 6960 rpm and 8.1 lb-ft of torque at 5550 on a 1995 M3. Race pulleys deliver even more power. 

Another "no-downside" upgrade, we even include a new belt. Total install time for a 3-piece pulley set should be around 1.5 hours. We offer three options in pulleys:
1.) No alternator pulley included - for cars with big amps and powerful stereo systems that need the extra juice.
2.) Street Power Pulleys - our most popular option with no downside!
3.) Race Power Pulleys - delivering 15 "free" horsepower, this set underdrives the water pump, power steering pulley, and alternator for lower temps, less wear, and more power. Not for street use. 

 

 

Intake Air Temperature Relocation Kit
Looking to maximize your power gains? Add a Turner IAT Relocation to combat power-robbing heat soak - the only true plug-and-play solution available. Heat soak is a real plague on consistent power for a stock or tuned vehicle. Click here to read more about our IAT relocation kit.

 

This item fits the following BMWs:
2001-2006 E46 BMW M3

 

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Hydraulic Alternator Belt Tensioner Assembly
10X Entries Into Our F80 M3 Sweepstakes
Bremmen Parts - Corporate Logo
T#:55030822
Part#: 11287838797
Ships on Nov 16, 2026
New Item
$ 59.99 USD
Free Shipping on orders $49 and up

Febi - Corporate Logo
T#:363804
Part#: 11287838797
Ships on Dec 10, 2026
$ 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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Febi - Corporate Logo
T#:382335
Part#: 11281748131
Ships on Dec 10, 2026
$ 31.99 USD
Free Shipping on orders $49 and up
Replacement is recommend with every belt service

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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Hydraulic Alternator Belt Tensioner Roller
5X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!
Meyle - Corporate Logo
T#:594521
Part#: 11281748131
Ships on Sep 30, 2026
$ 23.99 USD
Free Shipping on orders $49 and up
$ 23.99 USD
Free Shipping on orders $49 and up
Replacement is recommend with every belt service

Meyle - Auxiliary Belt - E46, E90, E92, E93, Z3, Z4
5X Entries Into Our F80 M3 Sweepstakes
Meyle - Corporate Logo
T#:40546016
Part#: 11287830945
Ships on Sep 30, 2026
$ 15.99 USD
Free Shipping on orders $49 and up
A high-quality, OE-style replacement serpentine belt designed to deliver reliable power to critical engine components, ensuring optimal performance and durability.

E46 M3, Z4M ECS Tuning Aluminum Water Pump Pulley
10X Entries Into Our F80 M3 Sweepstakes
ECS - Corporate Logo
T#:367060
Part#: 002778ECS01
Ships on Dec 18, 2026
Sale - Save 10% $ 100.99

This product was last offered at the strikethrough price on
06-13-2026

$ 90.89 USD
Free Shipping
Sale - Save 10%
$ 100.99

This product was last offered at the strikethrough price on
06-13-2026

$ 90.89 USD
Free Shipping
Most of the pulleys on your BMW engine are plastic, which become brittle and frail over time and from engine bay heat. A failed pulley could leave you stranded which is why it is vital to inspect the pulleys during routine maintenance. This is an aluminum version of the stock water pump pulley used on the S54 engine in the E46 M3, MZ3, and Z4M. It's the same size and uses the same hardware and the original belt as the stock plastic pulley. But the aluminum will last much longer.
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