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BMW Drive Belts & V-Belts

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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Rogue Engineering Power Pulley Set - E9X M3 (05/2008+)
Rogue Engineering Power Pulley Set - E9X M3 (05/2008+)
Rogue Engineering - Corporate Logo
T#:553839
Part#: PP.S65.V8.B
Ships in 6 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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Rogue Engineering Power Pulley Set - S54 - E46 M3, Z3/Z4 M
Rogue Engineering Power Pulley Set - S54 - E46 M3, Z3/Z4 M
Rogue Engineering - Corporate Logo
T#:553971
Part#: PP.S54
In Stock
$ 259.00 USD
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$ 259.00 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.

Rogue Engineering Power Pullies are CNC machined from 6061-T6, heat treated aluminum and specially coated with a MIL-A-8625 Type III hard coat anodize finish. This kind of anodizing is not to be confused with a Type II cosmetic anodize finish (typical colors such as red, blue, silver, green, etc.). The hard coat anodize finish actually builds a small surface layer on top of the aluminum, preventing wear.

This part fits the following BMW engines:
S54

This part fits the following chassis:
E46, Z3, Z4

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Accessory Belt Tensioner Assembly
Accessory Belt Tensioner Assembly
Mubea - Corporate Logo
T#:594655
Part#: 11287810807
Ships in 1 Business Day
$ 148.53

This product was last offered at the strikethrough price on
07-15-2026

$ 138.68 USD
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$ 138.68 USD
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If the accessory belt is sloppy and loose in your vehicle, your generator, and AC might not work properly. Alternatively, if your belt snaps constantly, the tensioner is too tight.
Rogue Engineering Power Pulley - E46 (Non-M)
Rogue Engineering Power Pulley - E46 (Non-M)
Rogue Engineering - Corporate Logo
T#:554021
Part#: P.E46
Back Ordered
$ 225.00 USD
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$ 225.00 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.

Rogue Engineering Power Pullies are CNC machined from 6061-T6, heat treated aluminum and specially coated with a MIL-A-8625 Type III hard coat anodize finish. This kind of anodizing is not to be confused with a Type II cosmetic anodize finish (typical colors such as red, blue, silver, green, etc.). The hard coat anodize finish actually builds a small surface layer on top of the aluminum, preventing wear.

Fits the following BMWs:
2000-2006 E46 BMW 323/325/328/330

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Active Autowerke Power Pulley Kit - E9x M3
Active Autowerke Power Pulley Kit - E9x M3
For vehicles with production date 2007-5/2008
Active Autowerke - Corporate Logo
T#:397285
Part#: 13-001
Ships in 3 Business Days
5% off MSRP $ 399.00

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 379.99 USD
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5% off MSRP
$ 399.00

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 379.99 USD
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Easy to install - reduces parasitic losses from belt driven auxiliary components. Engine crankshaft pulley remains the same, this modification simply unleashes untapped potential from your vehicle. Expect to see gains around 10 RWHP from your S65. All BMW power pulleys included, including alternator, water pump, and power steering pulleys.
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Rogue Engineering Power Pulley Set - E9X M3 (up to 05/2008)
Rogue Engineering Power Pulley Set - E9X M3 (up to 05/2008)
Rogue Engineering - Corporate Logo
T#:553840
Part#: PP.S65.V8.A
Ships in 8 Business Days
$ 295.00 USD
Free Shipping
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$ 295.00 USD
Free Shipping
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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.
Show More Show Less
Rogue Engineering Racing Power Pulley Set - S54 - E46 M3, Z3/Z4 M
Rogue Engineering Racing Power Pulley Set - S54 - E46 M3, Z3/Z4 M ...
Rogue Engineering - Corporate Logo
T#:553959
Part#: PP.S54.RACE
In Stock
$ 599.00 USD
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$ 599.00 USD
Free Shipping
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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.

Rogue Engineering Power Pullies are CNC machined from 6061-T6, heat treated aluminum and specially coated with a MIL-A-8625 Type III hard coat anodize finish. This kind of anodizing is not to be confused with a Type II cosmetic anodize finish (typical colors such as red, blue, silver, green, etc.). The hard coat anodize finish actually builds a small surface layer on top of the aluminum, preventing wear.

This part fits the following BMW engines:
S54

This part fits the following chassis:
E46, Z3, Z4

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Accessory Belt Tensioner
Accessory Belt Tensioner
Mubea - Corporate Logo
T#:31622553
Part#: 11288479475
Ships in 4 Business Days
$ 101.99

This product was last offered at the strikethrough price on
05-07-2026

$ 98.99 USD
Free Shipping on orders $49 and up
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$ 98.99 USD
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Mubea Mechanical Belt Tensioner - E70
Mubea Mechanical Belt Tensioner - E70
Mubea - Corporate Logo
T#:1195871
Part#: 11287799851
In Stock
$ 141.99 USD
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$ 141.99 USD
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Original equipment German-made tensioner for alternator, A/C and power steering system
Mubea Mechanical Accessory Belt Tensioner - BMW B46/48 B58
Mubea Mechanical Accessory Belt Tensioner - BMW B46/48 B58
Mubea - Corporate Logo
T#:26971839
Part#: 11288580360
Ships in 1 Business Day
$ 177.99

This product was last offered at the strikethrough price on
05-07-2026

$ 160.99 USD
Free Shipping on orders $49 and up
Add to Wish List
$ 160.99 USD
Free Shipping on orders $49 and up
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Accessory belt tensioners provide tension to the belt drive system, ensuring the belt is able to properly turn engine accessories without slipping. If your tensioner has failed, replace it with a brand-new unit to ensure proper water pump and alternator functionality.
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Vaico Mechanical Accessory Belt Tensioner - BMW B46/48 B58
Vaico Mechanical Accessory Belt Tensioner - BMW B46/48 B58
Vaico - Corporate Logo
T#:50346424
Part#: 11288580360
Special Order: No Guaranteed ETA
$ 68.99 USD
Free Shipping on orders $49 and up
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$ 68.99 USD
Free Shipping on orders $49 and up
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Accessory belt tensioners provide tension to the belt drive system, ensuring the belt is able to properly turn engine accessories without slipping. If your tensioner has failed, replace it with a brand-new unit to ensure proper water pump and alternator functionality.
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