Vortech 4.6"/8.0" 8-Rib Crank Pulley (1986-1993 Mustang) 4FA018-029
8-Rib Crank Pulley for Vortech-Supercharged Fox Body Mustang 5.0L
The Vortech Superchargers 4.6"/8.0" 8-Rib Crank Pulley (PN 4FA018-029) is a precision-engineered crankshaft pulley designed for 1986-1993 Ford Mustang 5.0L applications equipped with Vortech supercharger systems. Featuring an 8-rib serpentine belt interface, this pulley provides improved belt traction and stability compared to factory configurations while maintaining compatibility with common Vortech drive layouts.
The dual-diameter design (4.6" / 8.0") allows flexibility across Fox Body Mustang accessory drive combinations commonly used in Vortech supercharged setups. Increased belt contact area helps reduce slip and ensures consistent supercharger speed under boosted and high-RPM operating conditions.
Optimized for Vortech Serpentine Drive Systems
This crank pulley is manufactured to Vortech's specifications for forced-induction use. Precision machining ensures proper balance and alignment, contributing to smooth operation and long-term reliability in supercharged Fox Body Mustang applications.
Key Features
- Designed specifically for Vortech supercharger systems
- Dual diameter: 4.6" / 8.0"
- 8-rib serpentine belt interface for improved traction
- Ideal for moderate to high-boost applications
- Precision-machined for proper fit and balance
Quick Specs
- Manufacturer: Vortech Superchargers
- Part Number: 4FA018-029
- Product Type: Crank Pulley
- Application: Ford Mustang 5.0L
- Model Years: 1986-1993
- Pulley Diameter: 4.6" / 8.0"
- Belt Type: 8-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
- What is the advantage of an 8-rib crank pulley?
An 8-rib pulley provides increased belt contact compared to stock configurations, helping reduce belt slip under boost. - Is this pulley compatible with 10-rib systems?
No. This pulley is designed specifically for 8-rib serpentine belt configurations.
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 extensive experience supporting Fox Body Mustang supercharger systems. From selecting the correct rib count to dialing in belt drive reliability, our team helps ensure your Vortech setup performs as intended.
Email: sales@beefcakeracing.com
Phone: 1-855-827-7223
CA Residents: WARNING: Cancer and Reproductive Harm www.P65Warnings.ca.gov

