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ATI Damper - 7.48" - Aluminum - 6 Groove - 18 Percent OD - VVT - 3 Ring (2009 - 2010 Dodge 5.7L Hemi Engine) ATI918446

ATI Damper - 7.48" - Aluminum - 6 Groove - 18 Percent OD - VVT - 3 Ring (2009 - 2010 Dodge 5.7L Hemi Engine) ATI918446

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Item#:
APPATI918446
$429.00
Price: $418.27
(You save $10.73 )
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UPC:
800157031946
Availability:
Special order
LTL:
N
MPN:
ATI918446
Product ID:
361491
Proposition 65:
N
Category:
Engine Components>Crankshaft Dampers
Core:
N
Clearance Item:
N

ATI Damper – 7.48in – Aluminum – 6 Groove – 18% Overdrive – VVT – 3 Ring (2009–2010 Dodge 5.7L HEMI Engine) – ATI918446

7.48in Aluminum 18% Overdrive Super Damper for 2009–2010 Dodge 5.7L HEMI VVT Engines

The ATI 7.48-inch Aluminum Super Damper (part ATI918446) is designed for 2009–2010 Dodge 5.7L HEMI engines with VVT. This high-performance 18% overdrive damper increases supercharger and accessory speeds for greater horsepower potential while maintaining precision harmonic control. Built with a lightweight 3-ring aluminum construction and 6-groove pulley, the ATI918446 delivers exceptional strength, balance, and smoothness—ideal for high-boost, high-RPM HEMI builds.

Performance Highlights

  • 18% overdrive ratio increases blower speed and boost for higher performance
  • 7.48-inch outer diameter enhances damping efficiency and belt contact
  • Lightweight aluminum construction reduces rotating mass for quicker revs
  • 3-ring inertia assembly provides superior vibration control and balance
  • 6-groove pulley supports factory belt system alignment
  • SFI 18.1 certified and fully rebuildable for long-term durability

Quick Specs

  • Outer Diameter: 7.48 inches
  • Material: Aluminum
  • Pulley Type: 6 Groove
  • Drive Ratio: 18% Overdrive
  • Engine Type: VVT (Variable Valve Timing)
  • Rings: 3
  • Certification: SFI 18.1
  • Applications: 2009–2010 Dodge 5.7L HEMI VVT Engines
  • Part Number: ATI918446

Why Choose ATI’s 18% OD Super Damper for 5.7L HEMI VVT Engines?

The ATI918446 Super Damper is the perfect choice for builders seeking more boost and reliability from their late-model HEMI engines. The 18% overdrive ratio delivers measurable power gains in supercharged or performance-tuned setups, while the precision 3-ring aluminum design ensures smooth operation and superior crankshaft protection. Whether your 5.7L is street-driven or track-prepped, this damper provides the strength, accuracy, and balance required for serious performance.

Frequently Asked Questions

What does 18% overdrive mean?

The 18% overdrive increases accessory and supercharger speeds by roughly 18%, allowing more boost and horsepower for tuned or forced-induction HEMI applications.

Will this fit non-VVT engines?

No. The ATI918446 is specifically designed for VVT-equipped 5.7L HEMI engines (2009–2010). Non-VVT models require a different damper.

Is this suitable for supercharged applications?

Yes. The 18% overdrive pulley is ideal for supercharged or turbocharged setups that benefit from higher blower speeds and increased boost.

Is it rebuildable?

Yes. Like all ATI Super Dampers, the ATI918446 is fully rebuildable with ATI service kits, ensuring long-lasting precision and safety.

Vehicle Fitment

  • 2009 Dodge Charger 5.7L HEMI (VVT)
  • 2010 Dodge Charger 5.7L HEMI (VVT)
  • 2009 Dodge Challenger 5.7L HEMI (VVT)
  • 2010 Dodge Challenger 5.7L HEMI (VVT)
  • 2009 Dodge Magnum / 300C 5.7L HEMI (VVT)
  • 2010 Dodge Magnum / 300C 5.7L HEMI (VVT)

Contact Beefcake Racing

Beefcake Racing is your go-to source for ATI Super Dampers and high-performance Mopar upgrades. For technical assistance or to order, email sales@beefcakeracing.com or call 1-855-827-7223. Our experts can help you select the perfect damper for your 5.7L HEMI build, whether for street or track use.

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