Screamin’ Eagle® 131 Performance Crate Engine

Street-Tuned Performance

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

factory built crate 131 engine

Milwaukee monster

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.
Crate 131 engine dyno chart comparison

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.
Screamin' Eagle crate 131 engine

Screamin' Eagle® Milwaukee-Eight® 131CI Performance Crate Engine

  • Black and Chrome OR Black and Gloss Black finish
  • Oil-Cooled OR Twin-Cooled
  • Engraved CNC-ported cylinder head with CNC-machined chamber and 1mm larger valves
  • SE8-517 high-lift cam, forged 10:7 high-compression pistons, high-performance cam bearing & high-performance tappets
  • Patent-protected 4.31" steel sleeve cylinders
  • 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

Explore Options

The Screamin' Eagle® Milwaukee-Eight® 131CI Performance Crate Engine is offered in Oil-Cooled and Twin-Cooled configurations and in Chrome or Gloss Black finishes.

Screamin' Eagle performance components

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.

Have questions?

For more information about the 131-cubic-inch Screamin’ Eagle® Crate Engine and Screamin' Eagle® Performance components, talk to your local Harley-Davidson® dealer.

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FAQs

Why should I consider a Screamin’ Eagle® 131 Street Performance Crate Motor?

It’s the biggest, most powerful street-compliant performance engine Harley-Davidson has ever created. 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. 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. This Stage IV equipped engine includes 131 Stage IV badging on the cylinder heads and timer cover to highlight the powerplant. Ready for bolt-in installation in the Original Equipment-style chassis of your Touring bike. No special fabrication or engine-mount relocation is required. This engine features a one-year manufacturer’s warranty for unmatched confidence. Eligible for coverage under factory vehicle warranty when dealer-installed within 60 days of vehicle purchase.

Designed and tested at the Harley-Davidson® powertrain factory to ensure the highest quality construction, this street-ready performance motor features the finest Screamin’ Eagle® components.

What does the Screamin' Eagle® 131 Street Performance Crate Motor include?

  • Screamin’ Eagle® patent-protected 4.310” Big Bore Cylinders
  • Screamin’ Eagle® Milwaukee-Eight® Extreme CNC-ported cylinder heads with CNC-machined chambers and 1mm larger valves
  • Screamin’ Eagle® SE8-517 high-lift cam
  • Screamin’ Eagle® 10.7:1 High-compression forged pistons
  • Screamin’ Eagle® High-performance cam bearing
  • Screamin’ Eagle® High-performance tappets
  • Screamin’ Eagle® 64MM Throttle body and cast manifold
  • Screamin’ Eagle® 5.5 g/sec fuel injectors

Is it easy to install?

This all-new engine features bolt-in installation. With as little as a thirty-day lead time, you can have your engine straight off the factory floor and installed on your bike in time for riding season. Contact your dealer for additional details and to order.

Are upgrades available?

Yes! The Screamin’ Eagle® team has hundreds of performance accessories ready to take your ride to the next level. From Screamin’ Eagle® Extreme Air Cleaners to High-Flow Exhaust Systems, and everything in between, our team has you covered.

Shop Screamin' Eagle Performance accessories

What other options do I have?

In addition to the Screamin’ Eagle® 131 Crate engine, Screamin’ Eagle® also offers 128/131 Stage IV performance kits for those riders looking to keep their stock crankcase. These high-performance kits slip into your factory crankcase without machining or removing the engine from the chassis. Screamin’ Eagle® offers a full line-up of performance products to fit your riding style. See your local dealer for details.

What else do I need to know?

  • The Screamin’ Eagle® 131 Crate Engine complies with US 49-State EPA emissions on 17’-later Touring Models. Refer back to this page for future status updates on California approval.
  • Street legal and/or street compliant statements refer to products meeting EPA and/or California emissions and noise standards in the United States.
  • The street legal and/or street compliant statements may not apply to markets outside of the United States.
  • Replacement engines must be re-fitted with emission control devices and systems appropriate for the vehicle model and model year in order to ensure emissions compliance. Failure to do so constitutes tampering under U.S. EPA guidelines and can lead to substantial fines and penalties.
  • Legal for use on public roads only when installed in the specified models. Not legal for use on public roads when installed in models other than the ones specified and not eligible for the P&A 24-month warranty when installed in models other than the ones specified. Please see the Parts and Accessories warranty statement and your dealer for more information.