ATI Elastomer Kit 2 Ring 6 w/50/50/70 ATI918990-50
Soft-Durometer Elastomer Kit for 6-Inch 2-Ring ATI Super Dampers
The ATI Elastomer Kit (part ATI918990-50) is a precision replacement for 6-inch, 2-ring ATI Super Dampers, engineered with a 50/50/70 durometer configuration for enhanced vibration absorption and smooth engine operation. This softer setup is ideal for street performance or endurance applications where reducing harshness and maintaining drivability are priorities, while still offering excellent harmonic control and crankshaft protection.
Performance Highlights
- Designed for 6-inch, 2-ring ATI Super Dampers
- 50/50/70 durometer setup provides excellent vibration absorption and balance
- Reduces torsional stress and increases crankshaft longevity
- Restores factory-level damping for smoother operation
- Constructed from high-quality, heat- and oil-resistant elastomer materials
- Perfect for street performance, endurance racing, and daily-driven vehicles
Quick Specs
- Application: ATI Super Damper
- Damper Size: 6 inches
- Design: 2-Ring
- Durometer Rating: 50/50/70
- Material: High-Performance Elastomer
- Compatibility: Steel Super Dampers
- Part Number: ATI918990-50
Why Choose the ATI918990-50 Elastomer Kit?
The ATI918990-50 Elastomer Kit delivers smooth and consistent damping performance for engines that benefit from softer harmonic control. The 50-durometer inner rings enhance vibration absorption at low to mid-RPM, while the 70-durometer outer section provides additional stiffness for stability at higher speeds. This combination ensures quiet, balanced operation without sacrificing performance ideal for engines prioritizing refinement and longevity.
Frequently Asked Questions
What does 50/50/70 durometer mean?
The inner and middle rings are 50-durometer for maximum flexibility and vibration absorption, while the outer ring is 70-durometer for stable harmonic control at higher RPMs.
Is this compatible with aluminum dampers?
No. The ATI918990-50 kit is designed specifically for steel 6-inch, 2-ring Super Dampers. Aluminum versions require a separate kit.
Who should use this durometer setup?
This softer configuration is ideal for street performance and endurance builds where smooth operation and reduced NVH (noise, vibration, harshness) are desired.
Should both elastomers be replaced at once?
Yes. Replacing both ensures balanced harmonic control and consistent damper performance for long-term reliability.
Why Buy from Beefcake Racing?
Beefcake Racing is your trusted dealer for ATI Performance Products, including Super Dampers, rebuild kits, and high-performance components. Our expert team can help you choose the right elastomer setup for your power goals and driving style. For questions or to order, email sales@beefcakeracing.com or call 1-855-827-7223. Beefcake Racing your source for proven power and precision parts.
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