Primary Chain Tensioners

10 products

Our selection of Primary Chain Tensioners for Harley-Davidson covers Sportster models from 1954–1990 and Big Twin applications including 1965–2000 Big Twin and 2007–2017 Softail, Dyna, and Touring models. These critical components maintain proper chain tension, preventing excessive wear and ensuring smooth, reliable power transfer from your engine to the transmission. As an authorised Harley-Davidson dealer, Iron City Motorcycles stocks primary chain tensioners from MCS, engineered to meet original equipment specifications for lasting performance. Whether you are addressing chain slack on a vintage Harley-Davidson Sportster or replacing a worn tensioner on a modern model, proper tension is essential for primary drive longevity and quiet operation. Worn tensioners can cause chain slap, excessive noise, and accelerated wear to primary components. Browse the full range below.