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

Unleash Redline Power — Upgrade to Stage IV Today!