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ATI Damper - 5.67" - Aluminum - 6 Groove - 16 Percent UD Size (1996 - 2004 Ford 4.6 Cobra) ATI918041

ATI Damper - 5.67" - Aluminum - 6 Groove - 16 Percent UD Size (1996 - 2004 Ford 4.6 Cobra) ATI918041

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Item#:
APPATI918041
$385.83
Price: $383.50
(You save $2.33 )
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UPC:
800157028588
Availability:
Special order
LTL:
N
MPN:
ATI918041
Product ID:
361428
Proposition 65:
N
Category:
Engine Components>Crankshaft Dampers
Core:
N
Clearance Item:
N

ATI Damper – 5.67in – Aluminum – 6 Groove – 16% Underdrive (1996–2004 Ford Mustang Cobra 4.6L) – ATI918041

16% Underdrive Aluminum Super Damper for 1996–2004 Mustang Cobra 4.6L DOHC

The ATI 5.67-inch Aluminum Super Damper (part ATI918041) is engineered for 1996–2004 Ford Mustang Cobra 4.6L DOHC engines to deliver improved power efficiency and reduced parasitic drag. Featuring a 16% underdrive ratio and 6-groove pulley, this damper slows accessory speeds for enhanced horsepower at the crank while maintaining precise harmonic control. Built from lightweight aluminum and SFI 18.1 certified, it’s the perfect balance of race-proven reliability and street-friendly performance.

Performance Highlights

  • 16% underdrive design reduces parasitic loss and frees up horsepower
  • 5.67-inch outer diameter maintains compact fitment
  • 6-groove pulley supports OEM-style accessory systems
  • Lightweight aluminum construction enhances throttle response
  • 3-ring design delivers consistent harmonic damping across all RPM ranges
  • SFI 18.1 certified for racing safety and high-RPM stability
  • Fully rebuildable and precision-balanced for long-term performance

Quick Specs

  • Outer Diameter: 5.67 inches
  • Material: Aluminum
  • Pulley Type: 6 Groove
  • Drive Ratio: 16% Underdrive
  • Certification: SFI 18.1
  • Rings: 3
  • Applications: 1996–2004 Ford Mustang Cobra 4.6L DOHC
  • Part Number: ATI918041

Why Choose the ATI 5.67in 16% UD Super Damper?

The ATI918041 Underdrive Super Damper combines power gains with precision balance. By reducing accessory load, it improves engine response and acceleration without sacrificing reliability. Its 3-ring aluminum design eliminates harmful crankshaft harmonics, safeguarding your 4.6L’s longevity whether it’s daily-driven or track-prepped. This damper is a proven upgrade for enthusiasts seeking real-world power improvements with OEM fitment and quality.

Frequently Asked Questions

How much power gain can I expect from 16% underdrive?

Typically, you can expect a gain of 8–12 horsepower at the wheels, depending on engine setup and accessories.

Will this affect my charging or cooling systems?

No. ATI’s underdrive ratio is carefully designed to retain proper alternator and water pump operation under normal driving conditions.

Does this fit OEM belts and accessories?

Yes. It works with stock-length belts and factory accessory layouts for 1996–2004 Mustang Cobra models.

Is tuning required after installation?

No tuning is necessary, as this upgrade doesn’t alter fuel, timing, or airflow parameters.

Vehicle Fitment

  • 1996 Ford Mustang Cobra 4.6L DOHC
  • 1997 Ford Mustang Cobra 4.6L DOHC
  • 1998 Ford Mustang Cobra 4.6L DOHC
  • 1999 Ford Mustang Cobra 4.6L DOHC
  • 2000 Ford Mustang Cobra 4.6L DOHC
  • 2001 Ford Mustang Cobra 4.6L DOHC
  • 2003 Ford Mustang Cobra 4.6L DOHC
  • 2004 Ford Mustang Cobra 4.6L DOHC

Contact Beefcake Racing

Beefcake Racing is your trusted source for ATI Super Dampers and Ford Modular performance parts. For expert assistance or to order, email sales@beefcakeracing.com or call 1-855-827-7223. Our performance specialists can help you select the right damper for your Cobra build.

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