Automatic Primary Chain Tension Adjuster

Original Equipment on '06-'17 Dyna® and '07-'17 Softail® and Touring models, this Automatic Primary Chain Adjuster eliminates the need to manually adjust the primary chain tension at traditional service intervals.

Fits '85-'06 Evolution 1340 (except '85-'88 Softail) and Twin Cam powertrain. Requires separate purchase of model-specific primary gasket and seals.