BMW Drive Belts & V-Belts for BMW Z4 M Roadster S54 (2003-2008)

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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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Turner Motorsport - Corporate Logo
T#:3465
Part#: PPK-MZ4
In Stock
Sale - Save 25% $ 354.99

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

$ 266.24 USD
Free Shipping
Sale - Save 25%
$ 354.99

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

$ 266.24 USD
Free Shipping
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! It's like FREE HORSEPOWER !

Underdrive pulleys for your BMW will slow down engine-mounted accessories - the water pump, power steering pump, and alternator*. These systems contribute to 'parasitic losses' - power lost from what the engine could produce if it did not have these systems. Since less energy is used to move them, that power is transferred back to the engine and used to propel the car. Our pulleys give a 10-20% reduction in rotation, releasing up to 11hp on most BMW six-cylinder engines. There's also a small but noticeable improvement in throttle response too! We have done extensive testing and development work, both on and off the track, to ensure that the accessory systems function as they should. On our Racing pulley kits we actually underdrive certain components more so we feel our Street pulleys are an ideal compromise between power/torque gains, reliability, and system performance. Our pulley kits have been on the market for over ten years, and used in all of our own cars, with zero component failures related to their use.

Our pulleys are made from T-6061 aluminum and finished in a durable black hard anodize that is very resistant to wear, chemical exposure, and heat. We designed our pulleys to look similar to the factory parts but also to be stronger and, in most cases, slightly lighter too. For example, With our hardcoat aluminum you will never have to worry about a serious failure of a stock plastic pulley. A 'stealth' approach to aesthetics was our goal and we let the results speak for the pulley design. Installation is straight forward and easy with simple hand tools. Removal of the fan is required for access to the front of the engine. Total install time for a 3-piece pulley set should be around 1.5 hours. A new longer belt is included and we also recommend replacing the separate A/C belt, belt tensioners, and the guide and deflection pulleys at the same time.



Additional Info
Clickhere for example dyno graph

Click here for installation instructions.

Turner Pulley Kit contents:
  • Turner water pump pulley
  • Turner power steering pump pulley
  • new extended length belt
  • instructions

    This underdrive pulley kit fits the following BMW:
    2006-2008 MZ4 Z4 M Coupe / Z4 M Roadster
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    Genuine BMW - Corporate Logo
    T#:360630
    Part#: 11287838797
    Ships in 3 Business Days
    6% off MSRP $ 304.99

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

    $ 286.99 USD
    Free Shipping
    6% off MSRP
    $ 304.99

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

    $ 286.99 USD
    Free Shipping
    Rogue Engineering - Corporate Logo
    T#:553971
    Part#: PP.S54
    Ships in 1-3 days
    $ 259.00 USD
    Free Shipping
    $ 259.00 USD
    Free Shipping

    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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    Genuine BMW - Corporate Logo
    T#:19787
    Part#: 32427830838
    In Stock at Vendor
    $ 167.99

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

    $ 136.99 USD
    Free Shipping
    $ 136.99 USD
    Free Shipping


    Genuine BMW Pulley
    This item fits the following BMW Chassis:
    E46 M3,E85 Z4M,E46,E85 Z4,E86 Z4


    Genuine BMW - Corporate Logo
    T#:19288
    Part#: 11517840403
    Ships in 3 Business Days
    $ 208.99 USD
    Free Shipping
    $ 208.99 USD
    Free Shipping


    Genuine BMW Pulley
    This item fits the following BMW Chassis:
    E46 M3,E85 Z4M,E46,E85 Z4,E86 Z4

    Fits BMW Engines including:
    S54

    Genuine BMW - Corporate Logo
    T#:360602
    Part#: 11281433571
    Ships in 1-2 days
    3% off MSRP $ 229.99

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

    $ 221.99 USD
    Free Shipping
    3% off MSRP
    $ 229.99

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

    $ 221.99 USD
    Free Shipping

    Genuine BMW - Corporate Logo
    T#:33617
    Part#: 11281726773
    Ships in 3 Business Days
    2% off MSRP $ 60.99

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

    $ 59.99 USD
    Free Shipping
    2% off MSRP
    $ 60.99

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

    $ 59.99 USD
    Free Shipping


    Genuine BMW Pitman Arm
    This item fits the following BMW Chassis:
    E36 M3,E46 M3,E85 Z4M,E34,E36,E39,E46,E53 X5 X5,E83 X3,E85 Z4,E86 Z4

    Fits BMW Engines including:
    M50,M52,M54,M56,S50,S52,S54

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    Genuine BMW - Corporate Logo
    T#:360606
    Part#: 11281717188
    Ships in 3 Business Days
    6% off MSRP $ 165.99

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

    $ 155.99 USD
    Free Shipping
    6% off MSRP
    $ 165.99

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

    $ 155.99 USD
    Free Shipping

    Genuine BMW - Corporate Logo
    T#:14460
    Part#: 11281726774
    Ships in 5 Business Days
    $ 67.99 USD
    Free Shipping
    $ 67.99 USD
    Free Shipping


    Genuine BMW Base Plate
    This item fits the following BMW Chassis:
    E36 M3,E46 M3,E85 Z4M,E34,E36,E39,E46,E53 X5 X5,E83 X3,E85 Z4,E86 Z4

    Fits BMW Engines including:
    M50,M52,M54,M56,S50,S52,S54

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