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Crankshaft Pulleys & Harmonic Balancers

Keep your drive belt system in check by replacing your BMW's crankshaft pulleys and harmonic balancers.
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Dinan Underdrive Crankshaft Pulley Kit - E60 M5, E63/64 M6 S85 5.0L ...
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Dinan - Corporate Logo
T#:21078436
Part#: D560-0001
Ships in 5 Business Days
Sale - Save 10% $ 449.99

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

$ 404.96 USD
Free Shipping on orders $49 and up
Sale - Save 10%
$ 449.99

This product was last offered at the strikethrough price on
09-28-2026

$ 404.96 USD
Free Shipping on orders $49 and up
Dinan's lightweight billet aluminum crankshaft pulley underdrives each of the accessories by 13 percent, reducing parasitic drag on the engine for a 6 HP @ 8000 RPM and 4 lb-ft torque @ 8000 RPM gain on a stock vehicle. The Dinan underdrive pulley retains the factory harmonic crankshaft damper, eliminating vibration that might otherwise damage the crankshaft. The kit includes all of the necessary mounting hardware, a lightweight pulley, and shorter belts. This product is backed by our industry-leading 4 year/50,000 mile warranty so you can rest assured that you are purchasing the best quality product for your BMW. Features: All accessories are underdriven by 13% to decrease drag on the engine. Lightweight billet aluminum crankshaft pulley, black anodized and engraved. Includes mounting hardware and shorter belts.
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Hex Bolt - MINI
10X Entries Into Our F80 M3 Sweepstakes
Bavarian Autosport - Corporate Logo
T#:16940487
Part#: 11217616164
In Stock
Sale - Save 23% $ 12.99

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

$ 9.99 USD
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Sale - Save 23%
$ 12.99

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

$ 9.99 USD
Free Shipping on orders $49 and up
Used to attach the crank pulley / vibration dampener
Hex Bolt - N52, N54
10X Entries Into Our F80 M3 Sweepstakes
Bavarian Autosport - Corporate Logo
T#:19792190
Part#: 11211439395
Ships on Nov 16, 2026
Sale - Save 11% $ 18.99

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

$ 16.99 USD
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Sale - Save 11%
$ 18.99

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

$ 16.99 USD
Free Shipping on orders $49 and up
Replacement center bolt for the engine crank pulley.

Adjustment Pulley
10X Entries Into Our F80 M3 Sweepstakes
Bremmen Parts - Corporate Logo
T#:48780737
Part#: 11288625983
In Stock
Sale - Save 7% $ 25.99

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

$ 24.22 USD
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Sale - Save 7%
$ 25.99

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

$ 24.22 USD
Free Shipping on orders $49 and up

MINI Crank Pulley With Dampener - R5X R6X
10X Entries Into Our F80 M3 Sweepstakes
Bremmen Parts - Corporate Logo
T#:28138093
Part#: 11237638551
Ships on Mar 23, 2027
Sale - Save 11% $ 72.99

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

$ 65.17 USD
Free Shipping on orders $49 and up
Sale - Save 11%
$ 72.99

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

$ 65.17 USD
Free Shipping on orders $49 and up

MINI Crank Pulley With Dampener - R5X R6X

Improve engine performance and reduce vibrations with the MINI Crank Pulley With Dampener - R5X R6X. This pulley-driven unit is designed to smooth out rotational vibrations from the crankshaft, ensuring smoother engine operation. When the pulley wears out or dries out, you may notice unusual noises near the passenger's side oil pan, indicating the need for replacement.

Benefits:

  • Reduces rotational vibrations for smoother engine operation
  • Minimizes noise from the passenger's side oil pan
  • Enhances overall engine performance

For optimal results, it's recommended to replace the hex bolts along with the crank pulley.

Upgrade your MINI's engine performance and reduce vibrations with the MINI Crank Pulley With Dampener - R5X R6X.

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