Make sure this part fits

Screamin’ Eagle 4.31 In. Big Bore Bolt-On Cylinders

$1,631.00

Part Number: 16800404
Free Shipping with $75 Purchase

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 and '25-later FLHXU models equipped with a 131ci/135ci Stage IV kit or 135ci Crate Engine.

Installation Instructions

Dealer Install Recommended:

Yes

ECM Calibration Required:

Yes

Sold In Units:

Pair

In the Box:

Front and rear cylinders, gaskets and installation instructions

WARRANTY:

1 year limited warranty – Go to www.h-d.com/warranty for full details

Harley-Davidson® motorcycles modified with some Screamin’ Eagle® Performance products must not be used on public roads and, in some cases, may be restricted to closed-course competition. These performance parts are 49-state U.S. EPA compliant but are NOT compliant for sale or use in California on pollution-controlled motor vehicles. California guidelines on tampering can also lead to substantial fines and penalties. Screamin’ Eagle® Performance products are intended for the experienced rider only.