1674CD Ring Set 42.50mm for Wiseco Pistons 42.50mm Bore

Ring Set for Wiseco

This Wiseco 1674CD ring set is a 42.50mm piston ring set designed to seal the combustion chamber and control oil on high-performance two-stroke and four-stroke engines.

Overview

The Wiseco 1674CD ring set delivers a 42.50mm ring set built to restore compression and reduce blow-by in a freshly rebuilt top end. This ring set suits riders and builders refreshing a piston during a rebuild or top-end service. Each ring set is sized at 42.50mm to match its corresponding piston bore.

Built For Performance

• 42.50mm bore size for a precise fit to the matching piston
• Ring set configuration for sealing combustion pressure
• Construction suited to high-compression performance applications
• Designed to control oil and limit blow-by
• Set format allows full ring replacement during a top-end rebuild

On-The-Job Use

• Top-end rebuilds on two-stroke and four-stroke engines
• Piston replacement jobs requiring new rings
• Cylinder refresh work after honing or replating
• Performance builds needing correct bore-matched rings

Specs At A Glance

Good To Know

Q: How do I know this ring set fits my piston? A: Match the 42.50mm bore size and the 1674CD part number to the piston being installed. Ring sets are bore-specific, so confirm the size before ordering.

Q: Should rings be replaced every time the piston is changed? A: New rings are typically fitted with a new piston to ensure proper sealing and even wear. Reusing old rings on a fresh piston can hurt compression and oil control.

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