6650KF Wiseco Ring Set 66.50mm for Wiseco 66.50mm Piston Rings

Ring Set for Wiseco

This 66.50mm piston ring set is a replacement ring set for Wiseco pistons, cross-referenced under part number 6650KF, and it restores compression and oil control in a rebuilt top end.

Overview

This Wiseco ring set is a 66.50mm replacement ring set built to seal the piston to the cylinder wall during combustion. The ring set for Wiseco pistons serves riders and engine builders refreshing a worn or damaged top end. Sold as a ring set in the 66.50KF reference, it is intended for a matching Wiseco piston of the same bore.

Built For Performance

• 66.50mm bore sizing matched to the corresponding Wiseco piston
• Ring set configuration for compression and oil control
• Replacement rings for a top end rebuild or refresh
• Part number 6650KF referenced for straightforward identification
• Sold as a set to service one piston

On-The-Job Use

• Top end rebuilds on small bore engines
• Refreshing compression on a worn piston ring pack
• Routine piston and ring replacement during a rebuild

Specs At A Glance

Good To Know

Q: How do I confirm this ring set fits my piston? A: Match the 66.50mm bore and the 6650KF reference against your existing Wiseco piston before ordering. Ring sets are bore and piston specific, so the wrong size will not seal correctly.

Q: Are these rings sold individually? A: This listing is for a ring set, not a single ring. Confirm the quantity you need against your rebuild plan before ordering.

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