ATI Super Damper for Honda/Acura K Series Engines

ATI Super Damper for Honda/Acura K Series Engines

Put every last bit of crank-harmonic anxiety to rest with the ATI Super Damper for Honda/Acura K Series Engines. Engineered, machined, and SFI 18.1-certified in the USA, this two-piece steel hub/aluminum shell damper uses ATI’s proven elastomer ring technology to cancel torsional vibration across the entire rev range of your K20 or K24. The result: smoother power delivery, extended bearing life, and the confidence to spin past 9,000 rpm without fear of pulley walk or accessory-belt carnage.

Why it matters

• Street or strip ready – Part #918477 retains the factory six-rib serpentine layout and adds 360° laser-etched timing marks for painless cam tuning.
• Race-day adaptability – Outer shell accepts a dry-sump drive gear (sold separately) so you can upgrade oiling without swapping dampers.
• Perfect 5.67" diameter for K20A2/K20Z3; functions as a mild under-drive on larger-pulley K24s and as an over-drive on the smaller K20Z1, giving you freedom to fine-tune accessory speed with belt choice.
• SFI-approved for NHRA & IHRA competition—bolt it on once, pass tech forever.
• Built to last – fully rebuildable, with service kits and replacement elastomers available directly from ATI.

Vehicle coverage

Direct fit for 2002-11 Civic Si, 2002-06 RSX, 04-08 TSX, 03-07 Accord, 02-11 CR-V, 03-11 Element, 07-10 CSX, and any other K-series swap using the factory crank bolt pattern.

Installation Snapshot

Intermediate, 1–2 hrs; damper, hub, and mounting hardware included; no ECU tune or cutting required (check belt length if changing pulley ratio).