3905XK Ring Set 99.20mm for Wiseco Pistons

Ring Set for Wiseco

This Wiseco 3905XK Ring Set, sized at 99.20mm, provides the sealing rings needed to restore compression in a rebuilt top end.

Overview

The Wiseco 3905XK Ring Set, 99.20mm delivers the piston ring sealing needed for a fresh top end rebuild. This ring set suits engine builders and riders refreshing a worn or damaged cylinder. Each ring is sized to match the 99.20mm bore specified by Wiseco for this application.

Built For Performance

• Wiseco 3905XK ring set sized for a 99.20mm bore
• Rings engineered to seal against the cylinder wall under combustion pressure
• Sold as a complete set for one piston
• Designed for reassembly after a top end rebuild
• Dimensional sizing matches the listed 99.20mm specification

On-The-Job Use

• Top end rebuilds after a piston or cylinder service
• Restoring compression lost to worn or stuck rings
• Routine maintenance on high-hour engines
• Shop work where the bore matches the 99.20mm size

Specs At A Glance

Good To Know

Q: How do I confirm this ring set fits my engine? A: Match the 99.20mm bore size and the 3905XK part number to your piston and cylinder specification. Because fit can vary by serial number, confirm compatibility before ordering.

Q: Is this an original manufacturer part? A: This is a Wiseco ring set, not an original equipment part. It is intended for use where the listed size and part number apply.

Slight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.