Harley-Davidson Announces Screamin’ Eagle 131 Crate Engine For Select Softail Models

Harley-Davidson Screamin' Eagle Milwaukee-Eight 131 Crate Engine
MSRP is $6,195 for the oil-cooled engine. Black and Gloss Black color option shown above.

From Press Release:

Harley-Davidson offers power-hungry street riders a new performance option with the introduction of the Screamin’ Eagle®Milwaukee-Eight® 131 Crate Engine for select Softail® model motorcycles. The new 131 cubic inch (2151cc) V-Twin engine delivers the biggest, most powerful street-compliant engine Harley-Davidson has ever created.* 

The Screamin’ Eagle 131 is a bolt-in replacement engine for select 2018-later model Harley-Davidson Softail motorcycles originally equipped with a Milwaukee-Eight engine, designed to run at high RPM and to provide a significant boost of torque from cruising speed. Riders will experience commanding performance from the moment the throttle is cracked open on the Screamin’ Eagle 131 engine, performance backed by the assurance of a 12-month factory limited warranty when installed by an authorized H-D dealer.

“Our adrenaline-seeking riders asked for thrilling power and torque with reliability,” said Harley-Davidson Product Manager James Crean. “The Screamin’ Eagle 131 Crate Engine delivers exactly that. Developed by the Screamin’ Eagle performance team and factory-assembled at Harley-Davidson Powertrain Operations to ensure the highest quality standards, this high-performance engine is genuine Harley-Davidson.”

Harley-Davidson Screamin' Eagle Milwaukee-Eight 131 Crate Engine
MSRP is $6,195 for the oil-cooled engine. Black and Chrome color option shown above.

This street-ready performance engine features H-D’s finest Screamin’ Eagle® components:

  • The Screamin’ Eagle 131 engine combines the 4.5-inch stroke of the Milwaukee-Eight 114 engine with new 4.31-inch bore cylinders with a patent-protected design. 
  • Milwaukee-Eight Extreme Ported four-valve cylinder heads are CNC-ported and fitted with valves 1mm larger in diameter than the previous generation to enhance air/fuel flow and velocity and feature fully machined combustion chambers shaped to optimize combustion efficiency.
  • The engine is completed with a high-lift SE8-517 camshaft and high-performance cam bearing, high-compression (10.7:1) forged pistons, a 64mm throttle body and intake manifold, and high-flow (5.5-grams per second) fuel injectors. 

It’s a combination that produces 135 ft-lb of torque and 124 HP at the rear wheel when paired with Screamin’ Eagle® Street Cannon mufflers. 

Each Screamin’ Eagle 131 engine is detailed with 131 Stage IV badging on the cylinder heads and timer cover. The engine is available in a choice of two finish treatments to match original motorcycle styling or a custom direction – Black and Chrome or Black and Gloss Black. 

The Screamin’ Eagle 131 engine is eligible for Custom Coverage™ Extended Limited Warranty to run concurrent with the remainder of the motorcycle’s factory 24-month manufacturer’s warranty. The engine must be purchased and installed by an authorized H-D Dealer within 60 days of vehicle purchase to qualify for the Custom Coverage and is otherwise backed by a 12-month factory limited warranty when installed by an authorized H-D Dealer.

The Screamin’ Eagle Milwaukee-Eight 131 Crate Engine ($6,195 oil cooled, $6,395 Twin-Cooled) fits 2017-later model Harley-Davidson Touring motorcycles originally equipped with either a Milwaukee-Eight Oil-Cooled or Twin-Cooled engine and select 2018-later Softail motorcycles. The Screamin’ Eagle 131 engine does not fit Trike models. ’17-’19 models require separate purchase of High-Capacity Oil Pump P/N 62400248. 17-’18 models require separate purchase of Screamin’ Eagle High-Capacity Clutch Plate Kit P/N 37000258. All models require additional purchase of ECM recalibration with Screamin’ Eagle Pro Street Tuner for proper installation. See an authorized Harley-Davidson® dealer for fitment details.

Complete fitment information can also be found on H-D.com.*The Screamin’ Eagle 131 Performance Crate Engine complies with noise and emissions standards in all U.S. states other than California on 2017-later Touring Models and select 2018-later Softail Models. 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.  Replacement engines are legal for use on public roads only when installed in select specified and compatible models. Street-compliant statements may not apply to markets outside the United States. Not eligible for 12-month factory limited warranty when installed in models other than those specified.  Please see the Parts and Accessories warranty statement and your H-D dealer for more information.  The prices provided are the Manufacturer’s Suggested Retail Prices. Prices exclude taxes and additional dealer charges, if any, and are subject to change. Actual dealer prices may vary.


  1. I wish they came out with a M-8 style motor to replace the 103 twin cooled family. hopping up the 103 just creates too much heat and takes away drivability.

  2. today I purchased the 131 for my 2017 street glide special because my 107 with 9,000 miles blew up, oil pump failure. Harley new and never had a recall on this leaving lots of people to eat the cost them self’s. that is screwed up, hopefully they won’t get anther chance to screw me over, if I had to do all over I would buy an Indian. so FU Harley Davidson !!!!!

  3. I cannot understand the HD loyalists who exchange one archaic overpriced and faulty vehicle for a similar one. Metric bikes are much more reliable and twice cheaper. Wind is the same and blows equally for everyone.

    • Just bought a newly built and customized road glide with this motor and it is a BEAST. What I can’t understand are the losers that think all bikes should be the same or have the same builds or whatever your whining is about. I have a 2020 Mercedes AMG GTR with Renntech stage 3 is is pushing over 750 HP on Cali gas. I don’t go on Miata or BMW or whatever boards and say their cars are garbage since they don’t have rear wheel steer or carbon fiber drive shaft etc etc. And finally of all the lame comments made by sport bike riders I have never had a tiny lil sport bike rider dressed like a power ranger even look me in the eye let alone make a neg comment about my bikes. Personally, I am a fan of all bikes I am sorry to see you aren’t bright enough to appreciate all bikes.

    • Wow stupid comments, whining and unable to find your posts on a board with less than 10 posts. You aren’t very bright are you? And when you show me a 1930s metric that is as reliable as my WLA you might have a point until then most sport bikes are plastic and tin and look like he11 after 10K miles

  4. Have had the 131 for a year, put over 2800 miles on it. Absolutely no issues at all. Maintain it like anything else and run good products in it.
    Good power, smooth engine. No complaints.

  5. I am from Calgary Alberta, Canada and I have a ducati diavel in the driveway.
    Can’t wait to build a bike around my new 131.
    My 2000 road king chrome piece was just stolen and I am thinking real positive about the future. What I can tell you about the harley compared to a sport bike is that I just rode my Harley about 2500 miles from where I bought it and it would be impossible to do that on a sport bike.


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