The list below focuses on Harley-Davidson motorcycles powered by the Twin-Cam engine, specifically those produced between 2011 and 2016. Priority was given to stock configurations to provide a fair ...

MILWAUKEE (July 20, 2011) -- Harley-Davidson offers more Big Twin performance for 2012 as its Twin Cam 103™ powertrain is standard equipment on Softail® and Touring motorcycle models and most Dyna® ...

Despite declining sales and revenue in 2025, Harley-Davidson has been the dominant American motorcycle maker for most of its long and illustrious history. Harley has produced a succession of engines ...

Harley-Davidson has shoehorned the High Output 103 Twin Cam engine into its fleet of Softail and Dynas, but some countries, such as Australia, will have to wait for the more powerful Dyna. READ ABOUT ...

Harley-Davidson unveiled its first new motorcycle engine in over 15 years, a completely new, single cam engine to replace the Twin Cam engine that debuted in 1999. It was time for an update.

Harley-Davidson's Big Twin is the heart and soul of America's most famous touring bikes. As Cycle World put it: "If ever an engine inspired religious fervor, this is it." This fall the icon gets an ...