Harley-Davidson Screamin' Eagle 135CI Stage IV Performance Crate Engine

The Screamin’ Eagle® 135-Cubic-Inch Crate Engine delivers no-compromise performance for riders seeking maximum displacement, power, and torque. Engineered and tested by Harley-Davidson, this street-ready engine provides 144 hp and 149 ft-lb of torque to the rear wheel, making it ideal for wide-open throttle and high-RPM performance while offering instant passing power from cruising speed.

FEATURES

• Street-compliant 135-cubic-inch Screamin’ Eagle® crate engine

• Produces 144 horsepower and 149 ft-lb of torque at the rear wheel

• 11.6:1 compression ratio for maximum performance

• Includes all-new Screamin’ Eagle® Extreme CNC-ported cylinder heads, SE8-550 high-lift cam, high-compression forged pistons, 68mm throttle body, CNC-machined Extreme Flow intake manifold, high-performance cam bearing and tappets, patent-protected 4.31" steel sleeve cylinders, 4 5/8" flywheel, 6.8 g/sec fuel injectors, and Screamin’ Eagle® Pro Billet Cam Plate and Oil Pump

• Ready for bolt-in installation in Original Equipment-style chassis

• Engineered and tested as a complete performance system by Harley-Davidson

• Black Granite / Gloss Black finish

• Stage IV Screamin’ Eagle® performance upgrade

DETAILS

• Fits '23-later FLHXSE and FLTRXSE, '24-later FLHX, FLTRX, and FLTRXSTSE models

• Requires separate purchase of Head Pipe P/N 65600177

• '23-'24 models require separate purchase of Cylinder Head Retrofit Kit P/N 29900147

• ECM recalibration required with Screamin’ Eagle® Pro Street Tuner for proper installation

• Dealer installation recommended

• Does not fit California models

• Sold individually

• Factory assembled at Harley-Davidson Powertrain Operations, Milwaukee, Wisconsin

• 1-year limited warranty

• Screamin’ Eagle® products may not be street legal in all countries; check with local dealer