3520KD Ring Set 89.50mm for Wiseco Engine Piston Rings

Ring Set for Wiseco

This 89.50mm ring set is a piston ring replacement designed to seal the combustion chamber on high-performance engines, referencing Wiseco part number 3520KD.

Overview

This 89.50mm ring set gives engine builders a fresh sealing solution for pistons requiring that bore size. The ring set works with your piston to control compression, oil, and blow-by so the engine holds power. It is aimed at rebuilders and racers running 89.50mm bore pistons who need dependable ring replacement without chasing down outdated part numbers.

Built For Performance

• 89.50mm bore size for a precise fit to matching pistons
• Constructed for high-compression and high-rpm engine builds
• Multi-ring set covers compression and oil control positions
• Wiseco 3520KD cross-reference lets you verify the correct application
• Sold as a set so a complete piston can be refreshed in one step

On-The-Job Use

• Top-end rebuilds on performance singles and twins
• Refresh after a piston replacement or cylinder re-bore
• Race engine assembly where ring seal is critical
• Shop and DIY rebuilds needing an exact bore match

Specs At A Glance

Good To Know

Q: How do I know this ring set fits my piston? A: Match the 89.50mm bore size and Wiseco 3520KD number to your piston spec before ordering. Ring end gap should still be checked and filed as needed during assembly.

Q: Is this an original Wiseco factory part? A: This is a replacement ring set built for Wiseco applications, not an original brand product. Confirm the part number and bore size match your build.

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