8 Best Harley Engines That Define Performance

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Ready to rev up your ride with some serious power? All the bike enthusiasts out there know that the heart of all Harley-Davidson motorcycles lies in its engine. That’s why in this article, we’re going to look at Harley-Davidson's greatest engines that power top performances in their bikes. 

Strap in as our team at High Country Harley-Davidson® of Frederick takes you through the eight best Harley engines that have set the standard for adrenaline-pumping rides!

Twin Cam 95: 1,550 cc (2000-2006)

Kicking off our list is the formidable Twin Cam 95 engine, which roared into the scene between 2000 and 2006. Made with a displacement of 95 cubic inches (1,550 cc), this key component provided riders with an exhilarating experience on models such as the 2004 Harley-Davidson FXSTDSE2 Screamin’ Eagle Softail Deuce.

Twin Cam 96: 1,584 cc (2007-2012)

Following closely is the Twin Cam 96 engine, reigning supreme from 2007 to 2012. With an increased displacement of 96 cubic inches (1,584 cc), this sturdy engine delivered an extra punch, as seen in the 2012 Harley-Davidson FXDB Dyna Street Bob, igniting passion in riders with every twist of the throttle.

Twin Cam 103: 1,690 cc (2003–2006 & 2009)

Next up is the Twin Cam 103 engine, making waves between 2003 and 2006 and then returning in 2009. Boasting a robust displacement of 103 cubic inches (1,690 cc), this strong machine-powered model like the 2016 Harley-Davidson Touring Road Glide Ultra and offered riders an unmatched combination of power and performance.

Milwaukee-Eight 107: 1,746 cc (2017+)

Enter the Milwaukee-Eight 107, a game-changer introduced in 2017 and beyond. With a displacement of 107 cubic inches (1,746 cc), this mighty engine revolutionized Harley-Davidson's lineup, powering iconic models including the 2019 Harley-Davidson Fat Bob with relentless torque and thrilling acceleration.

Twin Cam 110: 1,800 cc (2007–2017)

Taking the spotlight here is the Twin Cam 110 engine, dominating the scene from 2007 to 2017. Featuring a displacement of 110 cubic inches (1,800 cc), this formidable unit drove models such as the 2017 Harley-Davidson Low Rider S, delivering unparalleled performance and commanding the road with authority.

Twin-Cooled 114: 1,868 cc (2017+)

Up next, we have the Twin-cooled 114 engine, making its mark in 2017 and after. Having an impressive displacement of 114 cubic inches (1,868 cc), this powerful part propelled models like the 2018 Harley-Davidson Heritage Classic 114 – 115th Anniversary, offering riders enhanced cooling performance and uncompromising power.

Twin-Cooled 117: 1,917 cc (2020+)

Making waves in the Harley-Davidson lineup is the Twin-cooled 117 engine, introduced in the 2020s. With an extraordinary displacement of 117 cubic inches (1,917 cc), this powerhouse drives models including the 2020 Harley-Davidson CVO Tri Glide, delivering breathtaking performance and pushing boundaries.

Milwaukee-Eight 131: 2,147 cc (2020+)

Rounding out our list is the legendary Milwaukee-Eight 131 engine, making its debut in 2020. Packing an astonishing displacement of 131 cubic inches (2,147 cc), this absolute beast is behind models such as the 2020 Harley-Davidson Screamin’ Eagle Milwaukee-Eight 131 Engine and the 2021 Harley-Davidson Screamin’ Eagle 131 Softail Engine, offering riders the ultimate in power and performance!

These top eight Harley engines have taken the cake as the pinnacle of performance in the world of motorcycles. Whether you're a newcomer to the Harley-Davidson family or a veteran rider, these powerhouse engines are sure to leave you exhilarated and eager for more adventures on the open road!