Whipple 63mm Smooth 6-Rib Replacement Idler for Select Mustang, HEMI, and GM Supercharger Kits

Whipple 63mm Smooth 6-Rib Replacement Idler

Maintain proper belt alignment and long-term reliability in your Whipple supercharger system with this 63mm smooth 6-rib replacement idler. Built from steel and pre-assembled with an OEM-quality bearing, this service part is designed for select Whipple Mustang, HEMI, and GM applications that use this pulley size and configuration.

This idler is designed as a direct replacement for compatible Whipple belt drive systems, helping restore dependable belt tracking and long-term durability in high-performance applications. With its smooth 6-rib design and 63mm / 2.50 inch diameter, it is intended for specific Whipple supercharger combinations and should be matched to the correct application before ordering.

Built for Whipple supercharger systems, this replacement idler reflects the same performance-focused engineering Whipple is known for. It is a simple service replacement for customers maintaining compatible belt drive configurations and looking to restore proper operation with the correct pulley specification.

Key Features

• 63mm / 2.50 in. diameter
• 6-rib smooth pulley design
• Steel construction
• Pre-assembled with an OEM-quality bearing
• Direct replacement for select Whipple supercharger kits
• Helps restore proper belt alignment and long-term reliability
• Simple bolt-on service replacement

This replacement idler is designed exclusively for compatible Whipple supercharger systems and should not be used as a generic pulley substitution. Fitment varies by kit and configuration, so application should be verified before ordering.