JE Pistons S14125-5-116HPB ProSeal 4.125 in. Top Piston Ring 1/16 Plasma Moly Individual

The JE Pistons S14125-5-116HPB is a ProSeal Series individual top piston ring engineered for high-performance racing and street applications. Designed for a 4.125-inch bore diameter with a 1/16-inch (0.0625 in.) ring width, this ring features a plasma moly-coated barrel face for superior wear resistance, reduced friction, and optimal combustion sealing under extreme cylinder pressures.

Key Features:

• Bore Diameter: 4.125 inches
• Ring Width: 1/16 inch (top ring position)
• Face Coating: Plasma moly for enhanced wear and sealing performance
• Ring Face Profile: Barrel face for improved oil control and break-in
• Sold individually — ideal for replacement or test fitting purposes
• Compatible with JE ProSeal and most aftermarket high-performance piston applications
• Available file-fit for custom bore sizing

JE Pistons has been a trusted leader in forged racing piston and ring technology for over 60 years. The ProSeal ring line is trusted by top teams in NASCAR, NHRA, ALMS, and AMA competition. JE offers over 2,300 ring set and individual part numbers, and also provides custom ring manufacturing services for specialized applications.