Whipple Alternator Relocation Kit (20112026 Mustang 5.0L / 5.2L) WHK-185ALT-REL
Race-Proven Belt Control for High-Power Coyote Builds
The Whipple Alternator Relocation Kit is a race-tested solution designed to solve belt slip and bracket flex issues commonly found in high-horsepower S197, S550, and S650 Mustang applications. Developed by Whipple Superchargers, this billet relocation system is engineered to work with an ATI harmonic balancer (standard diameter or 20% overdrive) to dramatically shorten the supercharger belt and improve belt wrap and stability.
By relocating the alternator, this system reduces belt length and eliminates alternator bracket deflection that can occur under high RPM and boost. The kit retains the factory alternator pulley to maintain proper alternator RPM and uses the OEM spring-loaded tensioner for reliable operation across the entire RPM range. Best of all, it allows you to retain factory A/C functionality and routing while significantly improving supercharger belt performance.
The lightweight Whipple crank pulley bolts directly to the ATI balancer and includes all required billet brackets, spacers, and mounting hardware for a straightforward installation. Whether installed in-car or on an engine stand, this is a must-have upgrade for serious Coyote builds that see high boost, track use, or dragstrip duty.
Performance Highlights
- Billet alternator relocation system for Whipple-powered Mustangs
- Designed to work with ATI balancers (standard or 20% overdrive)
- Shortens supercharger belt for improved grip and stability
- Eliminates alternator bracket flex in high-power applications
- Retains factory A/C system and belt routing
- Uses factory alternator pulley and OEM spring-loaded tensioner
- Lightweight Whipple crank pulley bolts directly to ATI balancer
- Shipped complete for easy installation
Quick Specs
- Part Number: WHK-185ALT-REL
- Application: Mustang 5.0L / 5.2L Coyote
- Compatibility: ATI balancer (standard or 20% overdrive)
- Belt Included: 6-rib 40 inch belt
- A/C Retention: Yes
- Oil Filter Fitment: FL-500 supported (FL-820 not supported)
- Material: Billet aluminum components
FAQs
Does this kit include the supercharger belt?
No. The kit includes a 6-rib alternator belt, but the supercharger belt is not included and must be selected separately based on your specific setup.
Is this compatible with non-Whipple superchargers?
This system has been tested only with Whipple Superchargers. While it may fit other applications, compatibility outside of Whipple systems is not guaranteed.
Fitment
- 2011 Ford Mustang GT 5.0L
- 2012 Ford Mustang GT 5.0L
- 2013 Ford Mustang GT 5.0L
- 2014 Ford Mustang GT 5.0L
- 2015 Ford Mustang GT 5.0L
- 2016 Ford Mustang GT 5.0L
- 2017 Ford Mustang GT 5.0L
- 2018 Ford Mustang GT 5.0L
- 2019 Ford Mustang GT 5.0L
- 2020 Ford Mustang GT 5.0L
- 2021 Ford Mustang GT 5.0L
- 2022 Ford Mustang GT 5.0L
- 2023 Ford Mustang GT 5.0L
- 2024 Ford Mustang GT 5.0L
- 2025 Ford Mustang GT 5.0L
- 2026 Ford Mustang GT 5.0L
- 2012 Ford Mustang Boss 302 5.0L
- 2013 Ford Mustang Boss 302 5.0L
- 2015 Ford Mustang GT350 5.2L
- 2016 Ford Mustang GT350 5.2L
- 2017 Ford Mustang GT350 5.2L
- 2018 Ford Mustang GT350 5.2L
- 2019 Ford Mustang GT350 5.2L
- 2020 Ford Mustang GT350 5.2L
Fitment Notes:
Does not fit applications with lowered engines, including GT350, due to sway bar clearance
Gen 2, Gen 3, and Gen 4 2.9L Whipple systems require a new tensioner plate for proper belt clearance
Why Buy from Beefcake Racing?
Beefcake Racing is a trusted Whipple Superchargers partner with deep experience in high-horsepower Mustang builds. If youre pushing big boost and want maximum belt reliability, our team can help you spec the right setup. Call 1-855-827-7223 or email sales@beefcakeracing.com.
CA Residents: WARNING: Cancer and Reproductive Harm www.P65Warnings.ca.gov
