S&S Cycle Piston Ring Sets 4.320 in. Bore - Harley Milwaukee-Eight

Refresh your Milwaukee-Eight top end with S&S Cycle Piston Ring Sets, precision-engineered for 4.320-inch bore M8 engines. These rings deliver consistent sealing and reliable performance, whether you're rebuilding a stock motor or pushing a performance build. Each pack provides one complete ring set, ready for installation.

Why riders pick this

• Engineered for 4.320-inch bore M8 engines
• Direct replacement for stock or performance builds
• Ensures optimal compression and oil control
• One complete ring set per pack

When you're tearing down your Milwaukee-Eight engine, don't overlook the importance of quality piston rings. S&S Cycle Piston Ring Sets are designed to meet the demands of both factory replacement and high-performance applications, ensuring optimal compression and oil control. Built for the specific bore of M8 engines, these rings are a critical component for maintaining engine health and extracting maximum power from your V-twin.

Precision Engineering for M8 Performance

• Engineered specifically for 4.320-inch bore Milwaukee-Eight engines
• Direct replacement for stock ring sets during rebuilds
• Suitable for both factory and high-performance engine configurations
• One complete ring set included per package for a single piston

Installation Considerations for Your M8

Installing new piston rings is a vital part of any top-end engine work. It's crucial to replace all associated engine gaskets and seals during the process to prevent leaks and ensure a proper seal upon reassembly. While these rings are designed for straightforward replacement, precise installation is key for longevity and performance. Consult your engine builder for specific guidance on your M8 project.

Specifications

• Brand: S&S Cycle
• Manufacturer Part #: 940-0066
• Bore Size: 4.320 in.
• Category: Engine Components / Piston Rings
• Weight: 0.06 lb
• Quantity: 1 pack

Common questions