Dinan Underdrive Crankshaft Pulley Kit - BMW M5/M6

13 Percent Underdrive - Billet Aluminum - E60/E63/E64

Part # D560-0001 Be the first to write a review
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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, 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.


  • 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.
Dinan Point Value1
Emission Code5
Labor Time (Hours)2
Max HP Gain6 @ 8000 RPM
Max Torque (lb-ft) Gain4 @ 8000 RPM
Product TypePulley Kit
Part NumberD560-0001

This part is legal for sale or use on Emissions Controlled Vehicles, Uncontrolled (Non-Emissions Controlled) Vehicles, and Racing Use Only Vehicles because it does not affect vehicle emissions and is not covered by emissions regulations.


    *Free Shipping & Handling only offered to the contiguous US on orders over $100, excludes clearance parts and oversized packages.

    Some parts are not legal for use in California or other states with similar regulations.