3858XH Ring Set for Wiseco 98.00mm Engine Piston Rings

Ring Set for Wiseco

This Wiseco 3858XH ring set at 98.00mm provides replacement piston rings engineered to seal combustion pressure and control oil on high-performance four-stroke engines.

Overview

This 98.00mm ring set is a direct replacement ring pack built for Wiseco 3858XH pistons and matching big-bore applications. It restores compression sealing, oil control, and cylinder wall contact on rebuilt or refreshed top ends. Ideal for engine builders and riders running Wiseco forged pistons in performance singles and twins.

Built For Performance

• 98.00mm bore size matched to Wiseco 3858XH piston specification
• Multi-piece ring pack covering compression and oil control positions
• Precision-ground face geometry for consistent cylinder wall seal
• Heat-treated steel construction for high-rpm durability
• Sold as a complete set for one piston

On-The-Job Use

• Top-end rebuilds on four-stroke performance engines
• Big-bore and high-compression builds using Wiseco pistons
• Ring replacement during piston or cylinder service
• Refresh work between race seasons

Specs At A Glance

Good To Know

Q: How do I know these rings match my piston? A: Match the 3858XH number stamped on your Wiseco piston and confirm the 98.00mm bore before ordering. Ring sets are piston-specific, so the number must line up exactly.

Q: Are these rings ready to install out of the box? A: Check end gap and ring land clearance against the piston maker's spec before assembly. File-fit rings may need end gap adjustment for your application.

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