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Harmonic Crank Damper

This all steel harmonic pulley is a direct replacement for the standard item. It has a high grade neoprene elastomer insert which 'dials out' any balance fluctuations. A must on any short stroke or high revving engine. It's also fully 'Degreed' with markings from 60 degrees BTDC to 10 degrees ATDC. The Ultimate in dampers.