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Get your Screamin' Eagle Milwaukee-Eight 135 Crate Motor at Riders Harley-Davidson

Mar. 17 2023 News By Parts & Accessories

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The new Harley-Davidson Screamin’ Eagle 135 Crate Engine is made for the experienced rider who wants to turn their bike into a 135 cubic inch performance bagger. 


We've done your homework - Engineered and tested as a complete collection of high-performance components by the Screamin’ Eagle pros at Harley-Davidson. This combination is designed for wide open throttle along with high-end RPMs and a significant torque increase from cruising speed. This is the most displacement, and the most power, ever created by Harley-Davidson for a street-compliant crate performance engine. 


Harley-Davidson Screamin’ Eagle 135 Crate Engine delivers 143 ft-lb of torque to the rear wheel as soon as the throttle is cranked. The Screamin’ Eagle Stage IV equipped engine includes 135 Stage IV badging on the cylinder heads and timer cover to highlight the powerplant. 


This street-ready performance motor features the finest Screamin’ Eagle components: Screamin' Eagle Extreme CNC-ported cylinder heads, SE8-517 high-lift cam, new high compression forged pistons, high-performance cam bearing, high-performance tappets, patent-protected 4.31" steel sleeve cylinders, new 4 5/8" flywheel, new 68mm throttle body and CNC-machined 68mm intake manifold, new 6.2 g/ sec fuel injectors, and Screamin' Eagle Pro Billet Cam Plate and Oil Pump. 


Ready for bolt-in installation in the Original Equipment-style chassis of your Grand American Touring Harley-Davidson. No special fabrication or engine-mount relocation is required. 


Available in black or chrome finish. Available for Twin-Cooled Milwaukee-Eight engines and Air/Oil cooled Milwaukee-Eight engines. 


This factory engine is built in Milwaukee and meets our strict factory specifications. 


Twin-Cooled: Fits ’21-later Touring models equipped with Twin-Cooled™ Milwaukee-Eight engine. Does not fit Trike models Requires separate purchase of Head Pipe P/N 65600177. All models require ECM recalibration with Screamin' Eagle Pro Street Tuner for proper installation. Does not fit California models. 


Air/Oil Cooled: Fits ’21-later Touring models equipped with air/Oil-Cooled Milwaukee-Eight® engine. Does not fit Trike models. Requires separate purchase of Head Pipe P/N 65600177 and Oil Cooler Fan Assist P/N 62700204 or Fan for Factory Oil Cooler P/N 26800195. All models require ECM recalibration with Screamin' Eagle Pro Street Tuner for proper installation. Does not fit California models.