3937XS Ring Set 100.00mm for Wiseco Pistons

Ring Set for Wiseco

This 100.00mm piston ring set is built to seal the combustion chamber and manage oil on high-performance four-stroke engines, cross-referencing Wiseco part number 3937XS.

Overview

This ring set provides the sealing a fresh top end needs to run at its best. Sized at 100.00mm for a precise fit in the matching bore, it suits engine builders and riders refreshing a worn piston. The 3937XS ring set pairs with the piston it was engineered for so compression and oil control stay in spec.

Built For Performance

• 100.00mm bore sizing for a matched fit to the piston it serves
• Ring set configuration covering compression and oil control duties
• Manufactured by Wiseco, a name established in performance piston and ring manufacturing
• Sold as a complete set for one piston
• Cross-reference part number 3937XS for easy lookup ordering

On-The-Job Use

• Top-end rebuilds on high-performance four-stroke engines
• Routine replacement when rings wear and compression drops
• Fresh bore and piston installations during engine service
• Race engine refresh programs between events

Specs At A Glance

Good To Know

Q: How do I know this ring set fits my piston? A: Match the 100.00mm bore size and the 3937XS part number to the piston you are installing. Confirm against your piston's specification before ordering.

Q: Are rings sold individually or as a set? A: This listing is for a complete ring set for one piston. Order the quantity that matches the number of pistons you are rebuilding.

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