ATI Damper 6.78in Aluminum 8 Groove 5% Underdrive 3 Ring (20032008 Dodge Non-VVT 5.7L HEMI Truck Engine) ATI918433
6.78in Aluminum 5% Underdrive Super Damper for 20032008 Dodge 5.7L HEMI Truck Engines
The ATI 6.78-inch Aluminum Super Damper (part ATI918433) is designed specifically for 20032008 Dodge trucks equipped with the non-VVT 5.7L HEMI engine. This 5% underdrive damper reduces parasitic drag from front-end accessories while maintaining exceptional harmonic control. Featuring a durable 3-ring aluminum design and 8-groove pulley, its the ideal upgrade for enthusiasts looking to improve throttle response, balance, and long-term reliability in high-performance or heavy-duty applications.
Performance Highlights
- 5% underdrive ratio reduces accessory load, freeing up horsepower
- 6.78-inch outer diameter balances compact fitment and superior damping efficiency
- Lightweight aluminum construction improves acceleration and reduces rotating mass
- 8-groove pulley supports OEM-style accessory drive systems
- 3-ring inertia assembly ensures top-tier harmonic stability
- SFI 18.1 certified and fully rebuildable for long-term precision
Quick Specs
- Outer Diameter: 6.78 inches
- Material: Aluminum
- Pulley Type: 8 Groove
- Drive Ratio: 5% Underdrive
- Rings: 3
- Certification: SFI 18.1
- Applications: 20032008 Dodge Non-VVT 5.7L HEMI Truck Engines
- Part Number: ATI918433
Why Choose ATIs 5% UD Super Damper for 5.7L HEMI Trucks?
The ATI918433 Super Damper is the ultimate upgrade for Dodge truck owners looking to maximize performance and reliability. The 5% underdrive design lessens accessory drag for measurable horsepower gains, while ATIs precision 3-ring aluminum construction protects against torsional vibration and crankshaft stress. Whether your HEMI is used for daily hauling, towing, or track fun, this damper offers unmatched control and long-term strength.
Frequently Asked Questions
What does 5% underdrive mean?
The pulley diameter is slightly larger than stock, reducing accessory speed by about 5%. This lowers drag on the crankshaft and frees up usable horsepower without affecting reliability.
Is this damper compatible with non-VVT 5.7L HEMI engines only?
Yes. The ATI918433 is specifically engineered for 20032008 non-VVT 5.7L HEMI truck engines. It is not compatible with VVT versions found in later models.
Does this damper improve engine smoothness?
Absolutely. ATIs Super Damper design eliminates harmful crankshaft vibrations, improving engine smoothness, durability, and overall performance.
Is it rebuildable?
Yes. Like all ATI Super Dampers, the ATI918433 is fully rebuildable using genuine ATI service components, ensuring years of consistent, race-grade performance.
Vehicle Fitment
- 2003 Dodge Ram 1500 5.7L HEMI (Non-VVT)
- 2004 Dodge Ram 1500 5.7L HEMI (Non-VVT)
- 2005 Dodge Ram 1500 5.7L HEMI (Non-VVT)
- 2006 Dodge Ram 1500 5.7L HEMI (Non-VVT)
- 2007 Dodge Ram 1500 5.7L HEMI (Non-VVT)
- 2008 Dodge Ram 1500 5.7L HEMI (Non-VVT)
- 20032008 Dodge 5.7L HEMI Truck Platforms (Non-VVT)
Contact Beefcake Racing
Beefcake Racing is your go-to source for ATI Super Dampers and performance upgrades for Dodge HEMI engines. For expert help choosing the right damper or to place an order, email sales@beefcakeracing.com or call 1-855-827-7223. Our experienced team can help you find the best setup for your trucks power and reliability goals.
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