# 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.

This Part Fits:

Year

Make

Model

Submodel

2006-2010

BMW

M5

Base

2006-2010

BMW

M6

Base

## Details

- **Price:** 661.53 CAD
- **Vendor:** Dinan
- **Type:** Pulleys - Crank, Underdrive

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 661.53 CAD | In stock |

## Images

- Photo - Primary
- Photo - out of package
- Photo - out of package

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> Source: [Standard Auto Part](https://www.standardautopart.com/products/dinan-06-10-bmw-m5-underdrive-pulley-kit)
> Updated: 2026-07-05