Harley-Davidson™ Gift Card
Send a digital card via email or ship a plastic card.*
Get a Gift Card
Make sure this part fits
Screamin' Eagle 4.155” (125CI) Big Bore Bolt-On Cylinders
$999.95
Make sure this part fits
Screamin' Eagle 4.155” (125CI) Big Bore Bolt-On Cylinders
$999.95
Members earn 1000 reward points on this purchase.
or
Increase the displacement of your Milwaukee-Eight® engine without removing the engine from the chassis. The Screamin’ Eagle product team has engineered a 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 kit, these cylinders can increase the displacement of your Milwaukee-Eight engine from 121CI to 125CI.
-
Black Granite Highlighted
-
Replacement cylinders for '23-later FLHXSE and FLTRXSE and '24-later FLTRXSTSE models equipped with a 121ci/125ci Stage III kit
-
Kit includes front and rear cylinders and gaskets
Replacement cylinders for '23-later FLHXSE and FLTRXSE, '24-later FLTRXSTSE and ‘26-later FLHXLSE and FLHXSTSE models equipped with a 121ci to 125ci Stage III kit.
Installation InstructionsDealer Install Recommended:
Yes
ECM Calibration Required:
Yes
Sold Separately:
See fitment for details
Sold In Units:
Pair
Screamin' Eagle Stage Upgrade:
Stage III
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
Certification:
49-State U.S. EPA compliant
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.
Buy Online. Pick Up in Store.
Your order can be ready for pickup at your dealer in as little as two hours for in-store stocked items.
Learn More
H-D Membership
Free to join! Members get free shipping over $99, points for purchases and access to the H-D App.
Join Now for Free
H-D™ Visa® Card
If instantly approved, use your virtual card today to get a Low Introductory APR and the opportunity to earn $100 in H-D Gift Cards. Find out if you're pre-approved with no impact to your credit score.
Apply Now