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Engines and Components› Belts and Pulleys

Dinan

UNDERDRIVE PULLEY KIT S85 STRE

$483.95 $436.45 Save $47.50

SKU: D00G D560-0001

Special Order
Special Order
Ships in 4–6 weeks
Free Shipping over $200
$100 Minimum Order
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Overview

The Dinan Underdrive Crankshaft Pulley Kit (MPN D560-0001) is a lightweight billet aluminum pulley designed for 2006-2010 BMW M5 and M6 models. It reduces parasitic drag by underdriving accessories by 13%, resulting in a 6 HP and 4 lb-ft torque gain at 8000 RPM. The kit includes mounting hardware, a lightweight pulley, and shorter belts, while retaining the factory harmonic crankshaft damper.
Show original supplier description

Part #: D560-0001

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.

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.

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

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

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Specifications

BrandDinan
Part NumberD00G D560-0001
5,000+ Trusted brands
1M+ Enthusiasts
5M+ Parts sold
(760) 282-4645 hello@motormia.co

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Returns & Fitment

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

Free shipping over $200 in the continental US. Alaska, Hawaii, U.S. territories (Puerto Rico, U.S. Virgin Islands, Guam, American Samoa, and the Northern Mariana Islands), and international orders carry surcharges — most appear at checkout. Some exceptions (LTL freight, or suppliers who quote freight only after we place the order) won’t. In those cases we’ll reach out with the exact charge before your order moves forward.

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