ATI Super Damper – 5.67" Aluminum | 7-Groove | Honda K20 | Street | 2002+ Civic Type-R / Acura RSX

Protect your K20 engine’s crankshaft from harmful torsional vibration with the ATI Super Damper — the industry-leading harmonic damper trusted by professional engine builders and racers worldwide. This 5.67" aluminum street-spec damper is engineered specifically for the Honda K20 engine found in the 2002+ Civic Type-R and Acura RSX, featuring a 7-groove pulley for compatibility with multi-accessory belt drive setups.

Unlike OEM rubber dampers that degrade over time and lose effectiveness, ATI’s Super Damper uses a precision-tuned elastomer ring in a sealed housing that maintains consistent damping performance across the engine’s full RPM range — protecting the crankshaft, bearings, and rotating assembly from fatigue and failure.

Key Features

• ATI Super Damper Technology: Precision-tuned elastomer ring in a sealed aluminum housing — maintains consistent torsional vibration damping across the full RPM range
• 5.67" Diameter: Optimized sizing for the K20 engine’s front accessory drive layout
• Aluminum Construction: Lightweight billet aluminum housing for reduced rotating mass compared to OEM cast iron/steel dampers
• 7-Groove Pulley: Compatible with standard multi-rib serpentine belt accessory drive systems
• Street Specification: Tuned for street and performance street use — suitable for modified K20 builds including bolt-on and forced induction applications
• Crankshaft Protection: Reduces torsional vibration-induced fatigue on the crankshaft, main bearings, and rotating assembly — critical for high-RPM K20 builds
• SFI Certified: ATI Super Dampers meet SFI 18.1 specifications

Specifications

• Diameter: 5.67"
• Material: Aluminum
• Grooves: 7
• Specification: Street
• Quantity: 1 piece
• Part Number: ATI918477

Fitment

• 2002+ Honda Civic Type-R — K20 2.0L
• 2002–2006 Acura RSX — K20 2.0L
• All K20-powered applications — verify crank snout diameter and keyway before ordering

Note: Professional installation required. Verify crank snout diameter, keyway, and belt routing compatibility for your specific K20 variant before ordering. ATI Super Dampers are not interchangeable with OEM dampers without verifying fitment specifications.