92500064 NEW OEM HARLEY-DAVIDSON M8 SCREAMIN EAGLE STAGE IV ENGINE KIT 114CI - 117CI
Harley-Davidson Screamin’ Eagle Milwaukee-Eight Stage IV Kit — Twin-Cooled
✅ Genuine Harley-Davidson OEM • ✅ Maximum Horsepower • ✅ CNC-Ported & Performance Engineered
️ Product Overview
This Stage IV Kit was developed to deliver maximum horsepower from the Milwaukee-Eight engine — all the way to the redline.
A system-matched combination of larger displacement cylinders, free-flowing CNC-Ported cylinder heads, and a high-lift cam provides the perfect foundation for the performance-focused rider.
- ✔ Comfortable low-RPM cruising with arm-pulling acceleration on demand
- ✔ Designed for flexibility and real-world rideability
- ✔ Ideal for riders who want the strongest factory-engineered upgrade path
What’s Included
- ✔ CNC-Ported Cylinder Heads with Performance Valve Springs
- ✔ 64mm Throttle Body
- ✔ High-Flow Injectors (5.5 g/s)
- ✔ 4.075" Bolt-On Cylinders
- ✔ Forged 11:1 High-Compression Aluminum-Coated Pistons & Rings
- ✔ SE8-515 Cam
- ✔ Cam Bearing Upgrade
- ✔ High-Performance Tappets
- ✔ Multi-Layer Coated Head Gaskets
- ✔ High-Capacity Clutch Springs (1200N)
- ✔ Most necessary gaskets and seals
Everything needed to take your Harley’s performance to the next level — in one matched package.
⚡ Performance Highlights
- ✅ Increases power by up to 40% compared to original equipment configurations
- ✅ Faster throttle response throughout the entire RPM range
- ✅ Maintains a flat torque curve from cruising RPM to redline
- ✅ Bolt-on design — install without removing the engine from the chassis
Configuration
- ☑️ Stage IV Kit 114CI → 117CI or 117CI → 117CI — Twin-Cooled
- ☑️ CVO Black Granite finish — matches Original Equipment CVO engine
- ☑️ Brand New in original Harley-Davidson packaging
- ☑️ Harley-Davidson P/N: 92500064
️ Fitment
Fits ’17-later CVO Touring models equipped with 114CI or 117CI Twin-Cooled Milwaukee-Eight engines.
Additional Requirements & Notes
- ➡️ 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
Condition
- ✔ Brand New — never installed
- ✔ Factory-sealed OEM Harley-Davidson packaging
- ✔ Authentic Screamin’ Eagle performance components