ATI Harmonic Crank Damper Pulley

1 Review(s) Write a Review

Your Price: $USD649.00

Part Number: GBPATIDAMPER

Availability: Ships in 1-2 business days

Engine Code (Model) *

Shipping to Canada? (please select yes or no) *

Quantity

Description
Customer Reviews

Gerzy Bear Performance is proud to offer custom ATI Harmonic Crankshaft Super Damper Pulley assemblies for all J-Series engines based on the engine code grouping selected in the drop-down menu.

Designed and tuned to eliminate crankshaft harmonics that cause parasitic HP loss, ATI Harmonic Crank Super Dampers make use of a durable non-bonded elastomer to absorb torsional and resonant vibrations. The triple band elastomer core in all of our J-series ATI based dampers are rated up to 800hp for Street, NHRA and IHRA racing usage. If more horsepower is made, then the time between replacement of the elastomer bands simply decreases from normal 10 years service interval based on ATI's official recommendations. For more information regarding the benefits of a Harmonic Crank DAMPER (not BALANCER; as all J-Series engines are internally factory balanced through piston, rod, and crankshaft bob weight ratios) please read the following article from Engine Builder Magazine at https://www.enginebuildermag.com/2019/06/harmonic-balancers-and-dampers.

Rating Snapshot

Select a row below to filter reviews.

Average Customer Ratings

5.0

ATI

Upgrading to the ATI Super Damper was one of the best decisions I’ve made for my build. From the moment I installed it, the difference in engine response and overall smoothness was immediately noticeable. The damper feels solid and well-balanced, and the fitment was perfect—no drama, no guesswork. GerzyBear’s communication and support throughout the process were great too. They answered all my questions and made sure I had exactly what I needed for the install. If you’re looking for an upgrade that improves performance AND longevity, the ATI Super Damper from GerzyBear Performance is absolutely worth it. Highly recommended!

Did you find this helpful?

Reviewed by: (Verified Buyer) Nicholas Preston from Orlando,FL on 12/22/2025

Jseries Lightweight Power Steering Pulley

$USD99.00

Ships in 1-2 business days

(2)

Select Options

100mm Pulley for Rotrex Superchargers (Excluding C38R-112)

$USD100.00

Ships in 1-2 business days

(0)

Select Options

110mm Pulley for Rotrex Superchargers (Excluding C38R-112)

$USD100.00

Ships in 1-2 business days

(0)

Select Options

85mm Pulley for Rotrex C38R Supercharger (C38R-112 and C38R-122 ONLY)

$USD150.00

Ships in 1-2 business days

(0)

Select Options

Extreme belt wrap Idler for Jseries Rotrex Bottom Mount Kits

$USD85.00

Ships in 1-2 business days

(0)

Select Options

ATI Harmonic Crank Damper Pulley

Choose Options

Average Customer Ratings

Related Items