Dinan D561-0004 Replacement Underdrive Pulley Belt for BMW M5/M6

The Dinan D561-0004 is a precision-engineered replacement belt designed specifically for use with the Dinan Underdrive Pulley Kit (R560-0002) on 2006-2010 BMW E60 M5 and E63/E64 M6 models. This high-quality serpentine belt drives the power steering and air conditioning accessories, ensuring optimal performance when running Dinan's lightweight underdrive pulley system.

Key Features:

• Specifically designed for Dinan Underdrive Pulley Kit R560-0002
• Drives power steering and air conditioning accessories
• Engineered for the reduced diameter of underdrive pulleys
• Premium construction for reliability and durability
• Direct replacement for worn or damaged underdrive pulley belts

When you install Dinan's underdrive pulley system, the accessories are underdriven by 13 percent to reduce parasitic engine drag and free up horsepower. This specialized belt is shorter than the factory belt to accommodate the smaller diameter of the underdrive crankshaft pulley. Regular inspection and timely replacement of this belt ensures your power steering and air conditioning continue to function properly while maintaining the performance benefits of the underdrive pulley kit.

This part is emissions-compliant and legal for sale or use on emissions controlled vehicles, uncontrolled vehicles, and racing use only vehicles, as it does not affect vehicle emissions.