ATI Damper 8.074in Steel 8-Groove 3 Ring Cummins 4BT / 6BT 3.9L / 5.9L Diesel ATI917365
Heavy-Duty 8.074in Steel Super Damper for Cummins 4BT & 6BT Diesel Engines
The ATI 8.074-inch Steel Super Damper (part ATI917365) is purpose-built for Cummins 4BT and 6BT diesel engines, including the 3.9L and 5.9L platforms. Designed to handle the extreme torsional vibrations common in high-compression diesel applications, this 3-ring, 8-groove steel damper provides unmatched durability, balance, and protection for both street and industrial builds. Its the ideal choice for truck, marine, and performance diesel setups demanding rock-solid reliability.
Performance Highlights
- 8.074-inch outer diameter delivers exceptional harmonic absorption and balance
- 8-groove pulley layout supports multi-belt drive configurations for accessories or boost systems
- All-steel 3-ring construction for maximum strength under heavy torque loads
- Built for Cummins 4BT / 6BT 3.9L and 5.9L diesel engines
- SFI 18.1 certified and fully rebuildable for long-term service life
Quick Specs
- Outer Diameter: 8.074 inches
- Material: Steel
- Pulley Layout: 8-Groove
- Design: 3-Ring Super Damper
- Certification: SFI 18.1
- Engine Compatibility: Cummins 4BT / 6BT 3.9L / 5.9L
- Application: Diesel / Truck / Industrial / Performance
- Part Number: ATI917365
Why Choose ATIs Cummins Super Damper?
The ATI917365 delivers professional-grade crankshaft stability for both stock and performance-built Cummins diesel engines. The heavy-duty steel shell withstands continuous stress, while ATIs precision balancing ensures vibration-free operation. Whether in towing, racing, or heavy-load conditions, this damper keeps harmonics in check, extending engine life and improving smoothness across the RPM range.
Frequently Asked Questions
Does this damper fit both 4BT and 6BT Cummins engines?
Yes. Its designed for both the 3.9L 4BT and 5.9L 6BT Cummins platforms, offering direct-fit performance.
Why choose a steel damper over aluminum?
Steel provides superior torsional strength and longevity for diesel engines that operate under constant high load and vibration.
Is the damper balanced and ready for installation?
Yes. Every ATI Super Damper is factory-balanced and ready to installno additional machining required.
Can this damper be rebuilt?
Yes. The ATI917365 is fully rebuildable using ATI service kits, ensuring long-term reliability and value.
Engine / Vehicle Fitment
- Cummins 4BT 3.9L Diesel Engine (All Years)
- Cummins 6BT 5.9L Diesel Engine (All Years)
- Compatible with Ram, Dodge, Freightliner, and industrial Cummins applications using 4BT or 6BT platforms
Contact Beefcake Racing
Beefcake Racing supplies the full range of ATI Super Dampers for diesel, performance, and industrial engines. For fitment help or ordering assistance, email sales@beefcakeracing.com or call 1-855-827-7223. Our experts will help you select the perfect damper for your build.
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