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Screamin' Eagle 4.155 In. Big Bore Bolt-On Cylinders

$924.95
5.00
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See 1 reviews
Part Number: 16800332
Color: Black Non-Highlighted
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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 and flywheel combination in the Screamin’ Eagle Stage IV kits, these cylinders can increase the displacement of your Milwaukee-Eight® engine from 107CI to 119CI or from 114CI & 117CI to 122CI.

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  • FEATURED REVIEW
    1/1/2023
    Top shelf jugs/ bottom shelf shipping!
    Featured H-D Dealership H-D Employee Sweepstakes Entry Verified Purchaser Top 10 Contributor Top 25 Contributor Top 50 Contributor Top 100 Contributor Top 250 Contributor
    I ordered these on a Sunday and paid for 2 day shipping and received them on the following Friday. When they arrived I took them to a engine build shop and had bore checked for any abnormalities. They were as close to perfect as can be imagined. Very happy and these aren’t as cheap as most competitors but they are extremely high quality. The fact that they will match colors and lines isn’t a bad thing either. read more.
    • User review image
    Line Trash - Virginia - Motorcycle: 2019 FLHCS
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  • Question:
    2/15/2023
    I need a set of head gaskets for these cylinders. Been waiting since November. Harley will have them in stock then long backorder time.
    Todd - OR
    • Answer:
      Hi Todd, Unfortunately the Screamin' Eagle 4.155 In. Big Bore Bolt-On Cylinders actually have a current lead time of 177 days. Thank you, RoseMKE
  • Question:
    7/17/2022
    Does this include the replacement pistons?
    Tomtom - Oklahoma
    • Answer:
      Tomtom, Under the details tab on the product page is states, In the Box: Front and rear cylinders, gaskets and installation instructions Thanks H9FXE
  • Question:
    5/3/2021
    Will these fit on the 2020 Breakout?
    Lexi - Topeka, Kansas
    • Answer:
      Hello Lexi, These are replacement cylinders for '17-later Milwaukee-Eight models equipped with Screamin' Eagle 119 or 122CI Stage III kits. Thank you, Captain Slow
      Captain Slow
      Helpful?
  • Question:
    4/22/2021
    What is the HP and Torque increase from the 117CI to the 122CI/? What is the estimated MPG with the 122CI? Is the 122 CI the biggest kit Harley offers for the 117CI engine
    JChca - Hollister CA
    • Answer:
      Hello JChca, The HP and Torque information may vary model to model, as well as the complete configuration itself if using these cylinder/gasket application. Replacement cylinders for '17-later Milwaukee-Eight models equipped with Screamin' Eagle 119 or 122CI Stage III kits. If you have various questions about the application for various year and models, depending on location with approved Screamin' Eagle Pro Street Tuner with 50-State U.S. EPA compliance and Pending approval for use in California on '21 models. Thank you, Captain Slow read more.
      Captain Slow
      Helpful?

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Screamin' Eagle 4.155 In. Big Bore Bolt-On Cylinders