Vortech 4.75"/6.87" 10-Rib Crank Pulley (1986-1993 Mustang) 4FA018-023
10-Rib Crank Pulley for High-Load Vortech Fox Body Mustang Applications
The Vortech Superchargers 4.75"/6.87" 10-Rib Crank Pulley (PN 4FA018-023) is a heavy-duty crankshaft pulley engineered for 1986-1993 Ford Mustang 5.0L applications running Vortech supercharger systems. Featuring a 10-rib serpentine belt interface, this pulley is designed for high-boost and high-RPM environments where maximum belt grip and drive stability are critical.
The dual-diameter configuration (4.75" / 6.87") allows compatibility with common Fox Body Mustang accessory drive layouts used in Vortech supercharged setups. The wider 10-rib belt profile increases belt surface contact area, significantly reducing the risk of belt slip in aggressive street, strip, or racing applications.
Designed for Severe-Duty Supercharger Use
This crank pulley is manufactured to Vortech's exact specifications and optimized for forced-induction loads. Precision machining ensures proper alignment and balance, helping maintain smooth operation and consistent supercharger drive under demanding conditions.
Key Features
- Designed specifically for Vortech supercharger systems
- Dual diameter: 4.75" / 6.87"
- 10-rib serpentine belt interface for maximum belt traction
- Ideal for high-boost, high-RPM applications
- Precision-machined for proper fit and balance
Quick Specs
- Manufacturer: Vortech Superchargers
- Part Number: 4FA018-023
- Product Type: Crank Pulley
- Application: Ford Mustang 5.0L
- Model Years: 1986-1993
- Pulley Diameter: 4.75" / 6.87"
- Belt Type: 10-Rib Serpentine
Emissions & Legal Notice
- NOT AVAILABLE OR LEGAL FOR SALE IN CALIFORNIA
- Intended for off-road and race-use-only vehicles
- Installation on emissions-controlled vehicles driven on public roads may violate U.S. federal emissions law
FAQs
- Why choose a 10-rib crank pulley over an 8-rib?
A 10-rib pulley provides increased belt contact area, which helps reduce belt slip in higher-boost or racing applications. - Is this pulley intended only for Vortech systems?
Yes. This crank pulley is designed specifically for Vortech supercharger drive configurations on Fox Body Mustang 5.0L engines.
Fitment
- 1986 Ford Mustang 5.0L
- 1987 Ford Mustang 5.0L
- 1988 Ford Mustang 5.0L
- 1989 Ford Mustang 5.0L
- 1990 Ford Mustang 5.0L
- 1991 Ford Mustang 5.0L
- 1992 Ford Mustang 5.0L
- 1993 Ford Mustang 5.0L
Why Buy from Beefcake Racing?
Beefcake Racing is an authorized Vortech Superchargers dealer with deep experience supporting Fox Body Mustang supercharger systems. From selecting the correct rib count to optimizing belt drive reliability, our team helps ensure your Vortech setup performs consistently under boost.
Email: sales@beefcakeracing.com
Phone: 1-855-827-7223
CA Residents: WARNING: Cancer and Reproductive Harm www.P65Warnings.ca.gov

