Whipple SC 6-rib Pulleys - 2011-2019 F150 5.0L, 6.2L 

• Made of 6061-T6 billet aluminum and anodizied for wear and envoirnmental protection.
• Engraved with the running diameter size.
• State-of-the-art light weight pockets to lower recipocating mass as well as a guard feature to help unwanted belt wandering.
• Hard coated black anodizied.
• Dimension of each supercharger pulley is based off of the running diameter.

*A general rule of thumb is every .125" of pulley change is 1psi of boost. There are no returns or exchanges for used pulleys.

**Whipple Supercharger pulleys are specific to the application, do not order this pulley for a different application.

Boost guideline. (If not sure we would be glad to help spec you the correct pulley size)

3.750= 11-12

3.500= 14

3.250= 16