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Power Pulleys

Turner's power pulleys reduce the rotational speed and mass of accessory pulleys to increase power and response. The lightweight aluminum design looks great under the hood and won't rust like steel pulleys.
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E9X M3 Performance Underdrive Pulley Kit
E9X M3 Performance Underdrive Pulley Kit
Macht Schnell - Corporate Logo
T#:593749
Part#: 10.00.011
In Stock
$ 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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VAC Motorsports ATI A/C Pulley - BMW M50 M52 M52TU M54 S50 S52
VAC Motorsports ATI A/C Pulley - BMW M50 M52 M52TU M54 S50 S52 ...
VAC Motorsports - Corporate Logo
T#:8076765
Part#: VAC-HPCD-M50-ACP
In Stock
$ 149.99 USD
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$ 149.99 USD
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If you are planning on keeping your Air Conditioning system in your street or track car, then you will need to combine VAC's ATI AC Pulley with the ATI Harmonic Damper.
VAC Motorsports Lightweight Underdrive Power Pulley Set - S54
VAC Motorsports Lightweight Underdrive Power Pulley Set - S54 ...
VAC Motorsports - Corporate Logo
T#:27705420
Part#: VACUPPSS542ULG
Ships on Aug 31, 2026
$ 294.99 USD
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$ 294.99 USD
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Crafted from high-grade domestic USA 6061-T6 Billet Aluminum, these pulleys are a testament to precision engineering. Rigorously tested through extensive hours of racing and street use, they've proven their reliability and performance excellence.

Each pulley is meticulously zero-balanced and thoroughly inspected to ensure zero-runout, guaranteeing optimal performance without compromising on reliability, noise, or vibration.

This comprehensive kit comprises a precision power steering pulley, water pump pulley, and an OE Contitech Brand drive belt. Experience a notable boost of 8hp and 7 ft/lbs. of torque to the wheels, making it ideal for stock vehicles, track cars, and even those with upgraded audio systems seeking consistent voltage output from their alternators.

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VAC M62 Underdrive Power Pulley Set (09/1998+)
VAC M62 Underdrive Power Pulley Set (09/1998+)
VAC Motorsports - Corporate Logo
T#:928436
Part#: VAC-UPPS-M62-99
Ships in 8 Business Days
$ 329.99 USD
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$ 329.99 USD
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VAC Underdrive Power Pulley Sets for the M60 release 8.5 horsepower @ 5800 RPM and 8 lb/ft of torque @ 4500 RPM (measured @ the wheels.) Always made using only virgin billet 6061 T6 aluminum, an anodized finish, and the tightest tolerances; VAC's pulleys are used on some of the fastest BMWs on the planet. A lightweight design optimizes performance and response while under-driving components just the right amount for proper function at all RPMs.
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VAC Underdrive Power Pulley Set - S14
VAC Underdrive Power Pulley Set - S14
VAC Motorsports - Corporate Logo
T#:598754
Part#: VAC-UPPS-S14-3-G
Ships on Aug 31, 2026
$ 334.99 USD
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$ 334.99 USD
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Made using only virgin billet aluminum, a hard anodized finish, and the tightest tolerances, VAC's pulley sets are used on some of the fastest S14s on the planet. This lightweight design optimizes performance and response while under-driving components just the right amount for proper function. Perfect for track cars, they can also be used on a street car without any problems. Features: Reduces pump cavitation at higher rpm's Saves weight when every bit counts Includes new, correct length, labeled Contitech belts for WP, ALT, P/S
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MINI R52 R53 M7 Gen 1 Power Up Kit - Supercharger Overdrive Pulley Kit
MINI R52 R53 M7 Gen 1 Power Up Kit - Supercharger Overdrive Pulley Ki...
M7 Speed - Corporate Logo
T#:1150752
Part#: 53-3M7700-1
Back Ordered
$ 368.99 USD
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$ 368.99 USD
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High Performance Engine Power Kit For Gen 1 MINI S
High Performance Engine Power Kit For Gen 1 MINI S
M7 Speed - Corporate Logo
T#:50276469
Part#: 53-3M7702-10
Ships in 2 Business Days
New Item
$ 440.99 USD
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$ 440.99 USD
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VAC Motorsports S54 Underdrive Power Pulley Set - 3 Pulley Race Set - BMW E46 M3
VAC Motorsports S54 Underdrive Power Pulley Set - 3 Pulley Race Set -...
VAC Motorsports - Corporate Logo
T#:29533361
Part#: VACUPPSS543ULG
Ships on Aug 31, 2026
$ 349.99 USD
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$ 349.99 USD
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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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