BMW Drive Belts & V-Belts for BMW 3 Series E93 (2007-2013)

E9X M3 Performance Underdrive Pulley Kit

For vehicles with a production date from 05/2008+ & a counterclockwise rotating Power S...

T#:593749

Part#: 10.00.011

Ships on Nov 2, 2026

$ 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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Lower Idler Pulley

10X Entries Into Our F80 M3 Sweepstakes

T#:32350850

Part#: 11287557851

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Sale - Save 15% $ 27.99

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

$ 23.79 USD

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$ 27.99

This product was last offered at the strikethrough price on
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$ 23.79 USD

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Accessory Belt Tensioner Assembly

10X Entries Into Our F80 M3 Sweepstakes

T#:29101657

Part#: 11287563927

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Sale - Save 17% $ 69.99

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

$ 57.79 USD

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$ 69.99

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

$ 57.79 USD

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Upper Idler Pulley

10X Entries Into Our F80 M3 Sweepstakes

T#:26305073

Part#: 11287556251

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Sale - Save 25% $ 31.99

This product was last offered at the strikethrough price on
07-14-2026

$ 23.99 USD

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$ 31.99

This product was last offered at the strikethrough price on
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$ 23.99 USD

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Deflection Pulley

10X Entries Into Our F80 M3 Sweepstakes

T#:34080699

Part#: 11287578674

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

$ 22.84 USD

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Bremmen Belt Tensioner Assembly -- E60 E61 E70 E82 E88 E9X Z4 ...

10X Entries Into Our F80 M3 Sweepstakes

T#:39497969

Part#: 11287530314

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05-03-2026

$ 43.24 USD

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This tensioner keeps the belt for the alternator, power steering, and air conditioning taut to provide maximum performance of each system.

Rogue Engineering Power Pulley Set - E9X M3 (05/2008+)

T#:553839

Part#: PP.S65.V8.B

Ships in 7 Business Days

$ 295.00 USD

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$ 295.00 USD

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Rogue Engineering has developed a power pulley kit that reduces the drag on specific pulleys while allowing others to remain at their same efficiency. This allows for perfect operation in daily driven vehicles without a hiccup or stutter. However, when the demand for power is requested, the power pulley kit allows for the freed power to become apparent. The term "power" pulley is a bit of a misnomer. Underdrive pulleys actually free up power by reducing the drag caused by the accessories. These pulleys are based off a calculated percentage from factory dimensions, so that particular component speeds are safely reduced without affecting their true purpose.

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Idler Pulley

10X Entries Into Our F80 M3 Sweepstakes

T#:34080698

Part#: 11287578675

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Sale - Save 21% $ 27.99

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

$ 22.02 USD

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Rogue Engineering Power Pulley Set - E9X M3 (up to 05/2008)

For vehicles with a production date up to 05/2008 with single drive belt.

T#:553840

Part#: PP.S65.V8.A

Ships in 9 Business Days

$ 295.00 USD

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$ 295.00 USD

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Rogue Engineering has developed a power pulley kit that reduces the drag on specific pulleys while allowing others to remain at their same efficiency. This allows for perfect operation in daily driven vehicles without a hiccup or stutter. However, when the demand for power is requested, the power pulley kit allows for the freed power to become apparent. The term "power" pulley is a bit of a misnomer. Underdrive pulleys actually free up power by reducing the drag caused by the accessories. These pulleys are based off a calculated percentage from factory dimensions, so that particular component speeds are safely reduced without affecting their true purpose.

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Alternator Pulley

10X Entries Into Our F80 M3 Sweepstakes

T#:52164889

Part#: 12317560483

In Stock

Sale - Save 15% $ 45.99

This product was last offered at the strikethrough price on
09-16-2026

$ 39.09 USD

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$ 39.09 USD

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Is your BMW making a chirping or grinding noise at idle? The culprit is frequently a failing alternator decoupler pulley. Unlike a traditional solid pulley, this Overrunning Alternator Pulley (OAP) allows the alternator rotor to "freewheel" when engine speeds drop suddenly. This specialized function protects your BMW drive belt and belt tensioner from excessive snap-back, vibration, and "belt slap."

Prevent Catastrophic Engine Failure

Over time, the internal clutch mechanism can seize or slip, leading to accelerated wear or total serpentine belt failure. On BMW engines, a snapped belt can be ingested through the front main seal, causing catastrophic engine damage. Replacing this pulley is a cost-effective preventative maintenance step that restores smoothness to your accessory drive without the high cost of a complete alternator replacement.

Features & Benefits:

Lowers the load on the drive belt, tensioner, and AC compressor.
Stops "belt slap" and rhythmic chirping noises during deceleration and idle.
Direct Replacement with high-quality construction ensures perfect fitment and long-term durability.
Essential Maintenance for N52 engines

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