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Screamin' Eagle Milwaukee-Eight Engine Stage IV Kit

Part Number 92500088

FINAL SALE, NON-RETURNABLE

Finish / Color: Black Highlighted

Quantity:

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This Stage IV Kit was developed to deliver maximum horsepower from the Milwaukee-Eight engine - all the way to the redline. The system-matched combination of larger displacement cylinders, free flowing CNC-Ported cylinder heads and a cam with the highest available valve lift are the starting point to building the perfect engine for the performance junkie. The addition of the large 64mm bore throttle body and high-flow injectors provides great acceleration from first gear through sixth and exceptional response at the twist of the throttle. Designed for a high level of flexibility, this package is ideal for riders who want stump pulling torque throughout the rpm range and also crave plenty of arm-pulling acceleration when you whack the throttle. Kit includes CNC Ported Cylinder Heads with Performance Valve Springs, 64mm Throttle Body, High Flow Injectors (5.5g/s), 4.075" Bolt-On Cylinders, Forged 11:1 High Compression Aluminum Coated Pistons and Rings, SE8-515 Cam, Cam Bearing Upgrade, High Performance Tappets, Multi-layer Coated Head Gaskets and most necessary gaskets and seals.

  • Stage IV Kit 114CI to 117CI or 117CI to 117CI - Twin-Cooled
  • Black with Highlighted Fins - Matches Original Equipment Non-CVO models
  • Increases power by up to 40% when compared to the Original Equipment engine configurations
  • Delivers increased response throughout the entire RPM range
  • Maintains flat torque curve from cruising RPM to redline
  • Can be installed without removing the engine from the chassis
  • Retains Original Equipment Factory Warranty
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Fits ’17-later Touring models equipped with 114CI Twin-Cooled Milwaukee-Eight engine. Requires separate purchase of Cam Drive Retention Kit P/N 25566-06. Installation may require Cam Spacer Kit P/N 25928-06. For ’17-’18 Touring models, installation of Oil Pump Cover P/N 62400206 is recommended (sold separately). All models require ECM calibration with Screamin’ Eagle Pro Street Tuner for proper installation.

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  • These Screamin' Eagle® products are 50-state street-legal for sale and use on all vehicles, including those that are pollution controlled. Complies with the requirements of 40 CFR Part 86, subparts E and F.
  • Dealer Install Recommended

    Yes
  • Warranty

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

    Yes
  • Certifications

    50-State U.S. EPA compliant
  • Sold in Unit

    Each
  • In The Box

    Click the Description tab above for details
  • Sold Separately

    Click the Fitment tab above for details
  • Upgrade Stage Level

    Stage IV

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    Prices listed are generally the Manufacturer's Suggested Retail Price (MSRP), excluding taxes and shipping. Prices at local dealerships may vary. All online orders will be fulfilled and shipped by
    Harley-Davidson Motor Company as the agent for the Selling Dealer.