4250ZB Wiseco Ring Set 4.250in File Fit for Wiseco Piston Rings

Piston Ring Set, 4.250in. File Fit for Wiseco

This 4.250in. file fit ring set, part number 4250ZB, is a piston ring set that allows end gap filing to match a specific bore and application.

Overview

This 4.250in. file fit ring set, part number 4250ZB, is a piston ring set made for builders who set ring end gaps by hand. As a file fit ring set, part number 4250ZB gives the installer control over final gap for their application. Choose this ring set when a 4.250in. bore build calls for adjustable ring gaps.

Built For Performance

• File fit design allows hand-set end gaps
• 4.250in. bore sizing for matching piston diameters
• Sold under part number 4250ZB for easy reference
• Ring set supplied as a matched set for one piston
• Suits builds where custom gap clearance is required

Specs At A Glance

Good To Know

Q: What does file fit mean for this ring set? A: File fit rings arrive with extra material so the end gap can be filed to the clearance your build requires. Final gap setting is done during assembly to suit the application.

Q: Does the bore size need to match exactly? A: Yes, this ring set is sized for a 4.250in. bore and should be matched to a piston of the same bore. Verify your piston and cylinder dimensions before purchase.

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