Paxton Superchargers 10-Rib 2.75" Supercharger Drive Pulley (1986-1993 Mustang) 4PFA031-275
10-Rib 2.75" Supercharger Drive Pulley for Fox Body Mustang Applications
The Paxton Superchargers 10-Rib 2.75" Supercharger Drive Pulley (PN 4PFA031-275) is designed for 1986-1993 Ford Mustang applications running Paxton or Vortech centrifugal supercharger systems configured with a 10-rib drive. This pulley provides increased belt engagement and drive stability for high-load supercharged Fox Body builds.
With a 2.75-inch diameter, this pulley allows for more aggressive supercharger speed potential while the 10-rib belt profile helps reduce belt slip under elevated boost and RPM conditions - making it well suited for high-performance street, strip, and competition use.
Performance & Drive Characteristics
- 10-rib belt configuration increases belt traction and load capacity
- 2.75" pulley diameter supports increased supercharger drive speed
- Improves belt control in high-boost and high-RPM environments
- Designed for demanding supercharged Fox Body Mustang applications
Application & Compatibility
This supercharger drive pulley is intended for use with Paxton and Vortech centrifugal superchargers utilizing a 10-rib drive system on 1986-1993 Fox Body Mustang platforms.
Important Installation & Tuning Notes
- Custom ECM tuning and fuel system calibration are required when changing supercharger pulley sizes
- Pulley diameter changes directly affect supercharger speed and boost levels
- Improper pulley selection may result in excessive impeller speed or engine damage
- Careful pulley sizing is critical for engine and supercharger longevity
Quick Specs
- Manufacturer: Paxton Superchargers
- Part Number: 4PFA031-275
- Pulley Diameter: 2.75"
- Belt Type: 10-Rib
- Application: 1986-1993 Ford Mustang
Emissions & Legal Notice
- Designed for off-road and competition use
- Not emissions legal for street-driven vehicles
Fitment
- 1986 Ford Mustang
- 1987 Ford Mustang
- 1988 Ford Mustang
- 1989 Ford Mustang
- 1990 Ford Mustang
- 1991 Ford Mustang
- 1992 Ford Mustang
- 1993 Ford Mustang
Why Buy from Beefcake Racing?
Beefcake Racing is an authorized Paxton Superchargers dealer with deep experience supporting Fox Body Mustang supercharger systems. From pulley sizing to complete drive-system configuration, our team helps ensure your setup is properly matched for reliable boost and long-term performance.
Email: sales@beefcakeracing.com
Phone: 1-855-827-7223
CA Residents: WARNING: Cancer and Reproductive Harm www.P65Warnings.ca.gov
