S&S Cycle 4.320" Bore Rear Cylinder, Wrinkle Black with Highlight - Harley Milwaukee-Eight

Enhance your 2017+ Harley-Davidson Milwaukee-Eight engine with this S&S Cycle Rear Cylinder, featuring a substantial 4.320-inch bore. Finished in wrinkle black with highlight detailing, this cylinder is sold as a standalone component for engine builders and performance shops. It provides a robust foundation for high-performance M8 builds, allowing you to tailor your engine with precision.

Why riders pick this

• 4.320-inch bore for increased displacement
• Designed for 2017+ Milwaukee-Eight engines
• Wrinkle black finish with highlight detailing
• Rear cylinder component for targeted builds
• S&S Cycle quality for durability

When building a custom Milwaukee-Eight engine or replacing a damaged component, having access to individual, high-quality cylinders is essential. S&S Cycle delivers with this 4.320-inch bore rear cylinder, engineered for the demands of modern V-twin performance. The wrinkle black finish with highlight detailing not only performs but also ensures your engine maintains a cohesive, aggressive aesthetic.

Precision and Style for Your M8

• Large 4.320-inch bore for enhanced displacement potential
• Designed for 2017 and newer Milwaukee-Eight engines
• Distinctive wrinkle black finish with highlight detailing
• Rear cylinder position for targeted replacement or build

Build Your M8 Your Way

This S&S Cycle rear cylinder offers flexibility for builders who need a specific component rather than a complete kit. It’s perfect for those performing a partial top-end refresh or customizing their engine with matched front and rear cylinders. Always verify your engine's specifications and bore size before ordering to ensure perfect compatibility with your Milwaukee-Eight build.

Specifications

• Brand: S&S Cycle
• Manufacturer Part #: 910-0837
• Bore Size: 4.320 in
• Position: Rear cylinder
• Weight: 12.7 lb
• Category: Engine Components / Piston Sets - Powersports

Common questions