Dinan 06-10 BMW M5 Underdrive Pulley Kit
Dinan
Dinan 06-10 BMW M5 Underdrive Pulley Kit
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.
- Lightweight billet aluminum crankshaft pulley, black anodized and engraved.
- All accessories are underdriven by 13% to decrease drag on the engine.
- Includes mounting hardware and shorter belts.
Installation instructions (PDF)
Special-order item: allow extra time for delivery.
WARNING: This product may expose you to chemicals known to the State of California to cause cancer and/or reproductive harm. www.P65Warnings.ca.gov
Fitment
Listed for these platforms and engines. Tap one to see every part for it.
Not sure? Send us your VIN before ordering and we’ll confirm it fits.
- Authorized dealerGenuine parts with full manufacturer warranty.
- ShippingShips same day or within 24 hours.
- Returns30-day returns on new, uninstalled parts in original packaging.