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A celebration 120 years in the making. Watch Now
A Celebration 120 Years in the Making. Watch Now

Screamin’ Eagle® Performance Crate Engines

Street-Tuned Performance

Leave other riders in the dust with the biggest, most powerful street-compliant crate performance engine Harley-Davidson® has ever created.

NEW! Screamin’ Eagle® 135 Crate Engine
135 Inches of Muscle
135 Inches of Muscle
Accept no compromise. Get the most displacement, and the most power, ever created by Harley-Davidson for a street-compliant crate performance engine. Engineered and hand crafted by the pros at Harley-Davidson using a complete collection of Screamin’ Eagle® high-performance components, this street-tuned 135-cubic-inch Screamin’ Eagle® Crate Engine is designed to run with a wide-open throttle at high engine speeds and provide instant passing power. Backed by a two-year warranty and ready to bolt into your Touring bike. Muscle up.
Screamin Eagle 135 Performance Crate Engine Dyno Chart
Unrelenting Performance
For the rider demanding for no-compromise performance. This street-tuned 135-cubic-inch Screamin’ Eagle® Crate Engine delivers 143 ft-lb of torque to the rear wheel as soon as the throttle is cranked.

Additional details

  • Engraved CNC-ported cylinder heads with CNC-machined chambers and 1mm larger valves
  • SE8-517 high-lift cam, forged 10:7 high-compression pistons, high-performance cam bearing and high-performance tappets
  • Patent-protected 4.31" steel sleeve cylinders & 4.625” flywheel (Bore x Stroke)
  • 68mm throttle body and Extreme CNC-machined manifold
  • Screamin’ Eagle Pro Billet Cam Plate & Oil Pump
  • 6.8 g/sec fuel injectors
  • Ready for bolt-in installation in the Original Equipment-style chassis of your ’21-later Touring bike
  • Engine features one-year manufacturer’s warranty for unmatched confidence
  • Factory assembled at the Powertrain Operations facility in Milwaukee, Wisconsin
Screamin’ Eagle® 131 Crate Engine
Screamin Eagle 131 Performance Crate Engine Video Overview
Screamin' Eagle® Milwaukee-Eight® 131CI Performance Crate Engine
Built from the bottom up in Milwaukee, this street-tuned 131-cubic-inch Screamin’ Eagle® Crate Engine is designed to run with a wide open throttle at high engine speeds and provide instant passing power from cruising speed. Available in Oil-Cooled and Twin-Cooled configurations and in Chrome or Gloss Black finishes.
Screamin Eagle 131 Performance Crate Engine Dyno Chart
Feel the rush of pure performance
Made for riders seeking maximum displacement, compression and flow, it delivers 131 ft-lb of torque to the rear wheel as soon as the throttle is cranked.

Additional details

  • Engraved CNC-ported cylinder heads with CNC-machined chambers and 1mm larger valves
  • SE8-517 high-lift cam, forged 10:7 high-compression pistons, high-performance cam bearing and high-performance tappets
  • Patent-protected 4.31" steel sleeve cylinders & 4.5” flywheel (Bore x Stroke) 
  • 64mm throttle body and cast manifold
  • 5.5 g/sec fuel injectors
  • Ready for bolt-in installation in the Original Equipment-style chassis of your ’17-Later Touring bike
  • Engine features one-year manufacturer’s warranty for unmatched confidence
  • Factory assembled at the Powertrain Operations facility in Milwaukee, Wisconsin
More Screamin' Eagle® Performance Products
More Screamin' Eagle® Performance Products
Power that moves you
Revolutionize your ride to keep the thrills rolling mile after mile. High-flow exhaust kits, performance cams, ultra-powerful Screamin’ Eagle® engines and a complete line of upgrades get you to peak exhilaration quickly and smoothly with the power to handle whatever comes. Conquer the road ahead with Screamin’ Eagle® Performance Products.