ATI Damper 6.78in Aluminum 6 Groove 6% Overdrive 3 Ring (20112023 Dodge VVT 5.7L & 6.4L HEMI Engines) ATI918459
6.78in Aluminum 6% Overdrive Super Damper for 20112023 Dodge 5.7L & 6.4L HEMI VVT Engines
The ATI 6.78-inch Aluminum Super Damper (part ATI918459) is precision-engineered for 20112023 Dodge 5.7L and 6.4L HEMI VVT engines. Designed with a 6% overdrive ratio, 6-groove pulley, and 3-ring aluminum construction, this damper boosts accessory and supercharger speeds for noticeable power gains while maintaining superior harmonic control. Whether for towing, street performance, or high-output builds, the ATI918459 delivers unmatched strength, balance, and reliability.
Performance Highlights
- 6% overdrive ratio increases blower and accessory speeds for added performance
- 6.78-inch outer diameter offers optimal damping and compact fitment
- Lightweight aluminum design reduces rotating mass for improved throttle response
- 3-ring inertia assembly ensures precision harmonic control at all RPM levels
- 6-groove pulley supports OEM-style belt configurations
- SFI 18.1 certified and fully rebuildable for long-term performance and safety
Quick Specs
- Outer Diameter: 6.78 inches
- Material: Aluminum
- Pulley Type: 6 Groove
- Drive Ratio: 6% Overdrive
- Design: 3-Ring Super Damper
- Certification: SFI 18.1
- Applications: 20112023 Dodge 5.7L & 6.4L HEMI VVT Engines
- Part Number: ATI918459
Why Choose ATIs 6% OD Super Damper for HEMI VVT Engines?
The ATI918459 Super Damper delivers the perfect balance of performance and reliability for modern HEMI engines. The 6% overdrive ratio enhances accessory and blower efficiency for increased output, while ATIs precision 3-ring aluminum design eliminates harmful crankshaft vibrations. Whether youre daily driving, towing, or racing, this damper ensures smooth power delivery and long-term engine protection.
Frequently Asked Questions
What does 6% overdrive mean?
The 6% overdrive pulley spins accessories and superchargers approximately 6% faster than stock, improving boost and performance for high-output HEMI applications.
Is this compatible with both 5.7L and 6.4L HEMI engines?
Yes. The ATI918459 fits all 20112023 Dodge 5.7L and 6.4L HEMI VVT engines with OEM-style belt systems.
Will it affect reliability for daily driving?
No. The 6% overdrive ratio is safe for street use, maintaining smooth operation while enhancing performance and responsiveness.
Is it rebuildable?
Yes. The ATI918459 Super Damper is fully rebuildable using genuine ATI service parts for continued precision and long-term value.
Vehicle Fitment
- 20112023 Dodge Charger 5.7L HEMI (VVT)
- 20112023 Dodge Challenger 5.7L HEMI (VVT)
- 20112023 Dodge Charger / Challenger 6.4L HEMI (VVT)
- 20112023 Ram 1500 / 2500 / 3500 5.7L & 6.4L HEMI
- 20112023 Dodge / Ram HEMI VVT Platforms
Contact Beefcake Racing
Beefcake Racing is your source for ATI Super Dampers and Mopar performance upgrades. For assistance selecting the right damper or to place an order, contact sales@beefcakeracing.com or call 1-855-827-7223. Our performance experts can help you optimize your HEMI build for power, reliability, and drivability.
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