OEM Harley Screamin Eagle M8 Engine Stage III Piston Cylinders Softail 92500071
Part #: 92500071
The Harley-Davidson part number 92500071 Screamin' Eagle Milwaukee-Eight Engine Stage III Kit - 114 to 117CI includes specific components to increase displacement and compression, resulting in a significant performance boost.
- Power Increase: Delivers up to a 24% increase in power and a significant increase in torque compared to the original equipment 114CI engine configuration.
- Performance Feel: Provides enhanced throttle response throughout the entire RPM range, strong roll-on passing power without requiring a downshift, and excellent stop-light to freeway acceleration.
The kit is designed for installation without removing the engine from the chassis and includes the following key components:
- Cylinders: 4.075" bolt-on cylinders for increased bore and displacement.
- Pistons: Forged 11:1 high-compression aluminum-coated pistons and rings.
- Camshaft: SE8-498 cam for optimized valve timing and lift.
- Valve Train: Includes performance valve springs and high-performance tappets.
- Gaskets & Seals: Multi-layer coated head gaskets, cylinder base and cam cover gaskets, and most other necessary gaskets and seals.
- Aesthetics: Features a black finish with non-highlighted fins, designed to match the original equipment look of specific Softail models like the FXBB, FLSL, FXFB, and FXFBS.
Installation Requirements
- ECM Calibration: All models require an ECM calibration with a Screamin' Eagle Pro Street Tuner (sold separately) for proper installation and operation.
Fitment: The Harley-Davidson part number 92500071, the Screamin' Eagle Milwaukee-Eight Engine Stage III Kit - 114 to 117CI, is compatible with specific Harley-Davidson Touring and Softail models equipped with the 114CI Milwaukee-Eight engine.
Vehicle Compatibility
- Touring Models: Fits all 2017-2022 Touring models equipped with the 114CI engine (except Trike models and 2021-later California models).
- Softail Models: Fits all 2018-2022 Softail models equipped with the 114CI engine (except 2021-later California models).
Specific Requirements
- Engine Size: Exclusively for motorcycles with the stock 114 cubic inch (CI) Milwaukee-Eight engine. It is not intended for models equipped with the OE 117 engine.
- Exclusions: This kit does not fit Trike models, nor is it compliant with 2021-later California emissions regulations (a separate, compliant part number is available).
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Mandatory Ancillary Purchases: Installation requires the separate purchase of several items for proper function and reliability:
- ECM Calibration: All models must be recalibrated with a Screamin' Eagle Pro Street Tuner.
- Cam Drive Retention Kit: Part number 25566-06 is required.
- Oil Pump Cover: For 2017-2018 Touring models, installation of the updated oil pump cover (part number 62400206 or depending on oil/twin cooling) is highly recommended/required.
- Cam Spacer Kit: Installation may require the use of a cam spacer kit (part number ) to ensure proper alignment.
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