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Screamin' Eagle 4.155" Big Bore Bolt-On Cylinders

$949.95

Part Number: 16800437
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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.

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  • 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

Replacement cylinders for '24-later Center-Cooled Touring and '25-later Softail models equipped with a Screamin' Eagle 122ci Stage III kit.

Installation Instructions

Dealer Install Recommended:

Yes

ECM Calibration Required:

Yes

Sold Separately:

See fitment for details

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.

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