With 131 cubic-inch (2,147cc), it’s a combination that produces 131 ft-lb of torque and 121 horsepower

Harley-Davidson has been giving us resilient machines ever since they began their stunt in 1903. A couple of years back, the Bar & Shield brand turned 115-years-old, and post that, Harley-Davidson promised to give us 100 new models in the coming decade. Two years out, and we already have 15 of them.

Powering the next leg of big V-Twin cruisers will be a brand-new SCREAMIN’ EAGLE 131 CRATE ENGINE . This is Harley’s biggest ever hauler with massive displacement of 131 cubic-inch (2,147cc) that dethrones Indian Motorcycle’s 111 Thunderstroke powerplant (1,811cc) to become the biggest motor made by a motorcycle production house.

Harley-Davidson unveiled their biggest V-Twin ever: SCREAMIN' EAGLE 131 CRATE ENGINE Exterior
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This 131 Crate Engine is a bolt-in replacement for 2017 and later touring motorcycles running an oil-cooled or twin-cooled Milwaukee Eights’. Replacing the 114ci Milwaukee Eight as the biggest Harley motor, this Crate Engine is configured with 4.31-inch bore cylinders, 64mm throttle body, and high-lift camshaft to throttle away heavy tourers into a state of commanding bliss. However, it carries over the 4.5-inch stroke from the Mil-8.

To compete with the all-new 108ci PowerPlus powertrain of the new Indian Challenger (122 horsepower and 128 ft-lbs. of torque), Harley suggests tethering the Crate Engine with Screamin’ Eagle Street Cannon mufflers to put out a monstrous pull of 131 ft-lb of torque and 121 horsepower. (But what that 1769cc Indian PowerPlus accomplishes is what magic is.)

Harley-Davidson unveiled their biggest V-Twin ever: SCREAMIN' EAGLE 131 CRATE ENGINE Exterior
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All this power is courtesy of high-compression (10.7:1) forged pistons, 1mm larger-diameter valves optimizing air/fuel flow and velocity into the fully machined combustion chambers shaped to optimize combustion efficiency, and, of course, the high-lift SE8-517 camshaft.

Riders of many late-model Harley-Davidson Touring motorcycles will experience commanding performance from the moment the throttle is cracked open on the Screamin’ Eagle 131 engine.
Harley-Davidson unveiled their biggest V-Twin ever: SCREAMIN' EAGLE 131 CRATE ENGINE Exterior
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The black/chrome or black/gloss black options are given to match original motorcycle styling or a custom direction along with 131 Stage IV badging on the cylinder heads and timer cover. The oil-cooled version of the Crate Engine is priced at $6,195, while a “Twin-Cooled” mill can be swapped in for $6,395. They come with a 12-month or 24-month factory limited warranty.

All models require an additional purchase of ECM recalibration with Screamin’ Eagle Pro Street Tuner for proper installation. Unfortunately, the Screamin’ Eagle Milwaukee Eight 131 Crate Engine doesn’t meet California noise and emissions standards.

Sagar Patil
Motorcycle industry expert since 1997! - sagar@topspeed.com
Over the years, a deeper conscience of machines moving body and soul has given him a crisp grasp over the concepts of motorcycling. A sucker for details and common sense, he loves getting his hands dirty every once in a while. His love affair with motorcycles ushers in the specialist skillset making Sagar our go-to expert for everything on two-wheels.  Read More
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