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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
Dinan Underdrive Crankshaft Pulley Kit - E60 M5, E63/64 M6 S85 5.0L ...
Call In Or Chat For Best Price! 10X Entries Into Our F80 M3 Sweepstakes
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
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$ 449.99

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

$ 404.96 USD
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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 - N52, N54
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
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Replacement center bolt for the engine crank pulley.
aFe POWER Crank Power Pulley Kit - E9X M3 S65 4.0L (up to 05/2008)
aFe POWER Crank Power Pulley Kit - E9X M3 S65 4.0L (up to 05/2008) ...
AFE - Corporate Logo
T#:372901
Part#: 79-10001
Ships in 3 Business Days
Sale - Save 5% $ 468.00

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

$ 444.60 USD
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$ 468.00

This product was last offered at the strikethrough price on
10-19-2026

$ 444.60 USD
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aFe Power's new power pulley brings performance engineering to your BMW M3. This power pulley is a complete bolt-on kit, including the pulley, bolts, and belts. aFe's power pulleys are CNC machined out of billet aluminum and black anodized for that aggressive look under the M3's hood. This power pulley does not modify factory harmonics or dampening. In recent Dyno testing this power pulley produced 10 HP and 7lbs. x ft. torque. aFe's power pulley fits up to production date May 2008. When it comes to engineering for power, performance, protection and value, aFe Power is the only choice.
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