Harley Screamin' Eagle 4.155" Big Bore Bolt-On Cylinders

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 4.155” Big Bore Cylinder that increases the internal bore but slips into the existing case bore without modification. When combined with the appropriate piston combination in the Screamin’ Eagle Stage III kits, these cylinders can increase the displacement of your Milwaukee-Eight engine from 117CI to 122CI.

• Black Highlighted

• Replacement cylinders for '24-later FLHX and FLTRX and '25-later FLHXU models equipped with a Screamin' Eagle 122ci Stage III kit

• Kit includes front and rear cylinders and gaskets