Harley-Davidson 16800404 Screamin‚ Eagle 431 In Big Bore Bolt-On Cylinders Screaming Eagle

Increase the displacement of your Milwaukee-Eight engine without removing the engine from the chassis. The Screamin' Eagle product team has engineered a patent protected 4.31‚ Big Bore Cylinder that increases the internal bore but slips into the existing case bore without modification.

- Black Granite

- Kit includes front and rear cylinders and gaskets

- Screamin' Eagle products are not available for sale and are not street legal in all countries. Please contact your local dealer for more information

Replacement cylinders for '23-Later FLHXSE and FLTRXSE and '24-later FLHX, FLTRX, and FLTRXSTSE models equipped with a 131ci/135ci Stage IV kit or 135ci Crate Engine.

Harley-Davidson 16800404 Screamin‚ Eagle 4.31 In. Big Bore Bolt-On Cylinders Screaming Eagle