2005-2009 Ford Mustang Underdrive Pulleys

These 2005-2009 Ford Mustang Underdrive Pulleys free up hidden horsepower by reducing power loss from your engine's accessory drive system. These components decrease the rotational speed of power-robbing accessories like the alternator and water pump while maintaining proper function, resulting in noticeable throttle response improvements and dyno-proven power gains.

 

When selecting 2005-2009 Ford Mustang Underdrive Pulleys, prioritize systems designed specifically for your engine type (4.0L V6, 4.6L 3V, or 5.4L GT500) that maintain proper belt alignment and tension. Look for CNC-machined pulleys from quality materials like billet aluminum with anodized finishes that resist corrosion and wear, ensuring long-term reliability while enhancing your engine bay's appearance.

 

Complement your power upgrades with 2005-2009 Ford Mustang Throttle Bodies for improved airflow, explore our 2005-2009 Ford Mustang Engine collection for comprehensive powertrain enhancements, or check out 2005-2009 Ford Mustang Intake Manifolds & Plenums for substantial mid-range and top-end power improvements.