ATI Damper 6.78" Stock Diameter 10 & 6 Groove (20112026 Mustang GT) ATI918054
Stock Diameter Super Damper for 20112026 Mustang GT 5.0L Coyote Engines
The ATI 6.78-inch Super Damper (ATI918054) is a stock diameter, 10- and 6-groove harmonic balancer engineered for 20112026 Ford Mustang GT models equipped with the 5.0L Coyote engine. This dual-drive configuration supports both the OEM accessory belt and additional performance accessories such as superchargers or aftermarket systems. Built with ATIs race-proven technology, it provides exceptional vibration control, balance accuracy, and reliability at any RPM. Whether on the street or track, this Super Damper is the ultimate upgrade for maintaining power and protecting your Coyote engine.
Performance Highlights
- 6.78-inch stock diameter maintains factory drive ratios and accessory speed
- 10-groove front and 6-groove rear pulley configuration for accessory and supercharger compatibility
- SFI 18.1 certified for high-RPM and motorsport use
- Eliminates torsional vibrations to improve engine longevity
- Aluminum and steel hybrid construction provides lightweight strength and balance
- Fully rebuildable for long-term service and durability
Quick Specs
- Outer Diameter: 6.78 Inches (Stock Size)
- Pulley Setup: 10-Groove Front / 6-Groove Rear
- Material: Aluminum Shell with Steel Hub
- Engine: Ford 5.0L Coyote (Mustang GT)
- Certification: SFI 18.1 Approved
- Finish: Hard Anodized Black
- Part Number: ATI918054
Why Choose the ATI Super Damper?
Unlike factory balancers, the ATI Super Damper is built for precision, strength, and performance stability. The ATI918054 maintains stock pulley ratios while offering superior torsional control to protect your Coyotes rotating assembly. Whether your Mustang is stock or supercharged, this damper provides consistent power delivery, reduced vibration, and better throttle response across the RPM range. Its the choice of professional engine builders and racers worldwide.
Frequently Asked Questions
Is this a direct replacement for the factory balancer?
Yes. The ATI918054 installs in place of the OEM balancer while maintaining the factory 6.78-inch diameter and drive ratios.
Whats the purpose of the dual 10 & 6 groove design?
The dual pulley setup allows the damper to drive both the stock accessory belt and a secondary drive (like a supercharger) without affecting OEM function.
Is this damper SFI certified?
Yes. Its SFI 18.1 certified for use in professional racing and high-performance street applications.
Does it require additional hardware?
ATI recommends using an ATI crank bolt and hub kit (sold separately) for proper installation and performance integrity.
Fitment
- 2011 Ford Mustang GT 5.0L Coyote
- 2012 Ford Mustang GT 5.0L Coyote
- 2013 Ford Mustang GT 5.0L Coyote
- 2014 Ford Mustang GT 5.0L Coyote
- 2015 Ford Mustang GT 5.0L Coyote
- 2016 Ford Mustang GT 5.0L Coyote
- 2017 Ford Mustang GT 5.0L Coyote
- 2018 Ford Mustang GT 5.0L Coyote
- 2019 Ford Mustang GT 5.0L Coyote
- 2020 Ford Mustang GT 5.0L Coyote
- 2021 Ford Mustang GT 5.0L Coyote
- 2022 Ford Mustang GT 5.0L Coyote
- 2023 Ford Mustang GT 5.0L Coyote
- 2024 Ford Mustang GT 5.0L Coyote
- 2025 Ford Mustang GT 5.0L Coyote
- 2026 Ford Mustang GT 5.0L Coyote
Why Buy from Beefcake Racing?
Beefcake Racing is your leading source for ATI Super Dampers and Ford Coyote performance parts. We offer expert product support, verified fitment, and fast shipping nationwide. As an authorized ATI dealer, we help you build your Mustang with confidence. Contact us at sales@beefcakeracing.com or call 1-855-827-7223 to order or get technical assistance today.
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