2421CD Ring Set 67.00mm for Wiseco Piston Rings 67mm

Ring Set, 67.00mm for Wiseco

This Wiseco 2421CD piston ring set measures 67.00mm and is built to seal the combustion chamber and control oil along the cylinder wall.

Overview

This Wiseco ring set, part number 2421CD, is a 67.00mm piston ring set intended to restore compression and oil control during a top-end rebuild. The 67.00mm bore sizing matches pistons machined to that diameter. Engine builders and riders pick this ring set for Wiseco when re-ringing a matched piston.

Built For Performance

• 67.00mm bore diameter for accurate seating in a matched cylinder
• Piston ring set configuration covering compression and oil control rings
• Manufactured for Wiseco as a replacement ring set
• Identified by part number 2421CD for straightforward cross-reference
• Intended for top-end rebuild and re-ring service

Fits These Machines

• for Wiseco pistons machined to a 67.00mm bore

On-The-Job Use

• Top-end rebuilds where the existing piston is reused with fresh rings
• Engine refresh work on small bore two-stroke and four-stroke applications
• Cylinder reconditioning paired with a matched piston

Specs At A Glance

Good To Know

Q: Will this ring set fit any 67.00mm piston? A: It is sized for a 67.00mm bore, but ring groove dimensions differ between pistons, so verify the ring set number against your piston first.

Q: Should I measure ring end gap before assembly? A: Yes, checking end gap and groove clearance on a 67.00mm ring set helps avoid compression loss and premature wear.

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