Clevite 50664CP Engine Piston Ring Set

The Clevite 50664CP is a precision-engineered engine piston ring set from Clevite, a brand under the MAHLE aftermarket family and one of the most trusted names in engine rebuilding components. Designed to OE form, fit, and function standards, this ring set is built for reliable sealing performance and long service life during engine overhaul or re-ring applications.

Key Features:

• Pre-lapped finish — rings are lapped to be "light tight" for immediate seating and reduced break-in time
• Upper compression ring — cast iron or ductile iron construction with a positive twist and barrel-faced contact surface for efficient compression sealing
• Second (intermediate) ring — reverse twist design with taper-race machining for improved groove side sealing and enhanced cylinder wall contact
• CP-20 oil ring assembly — features an exclusive 20-degree ear angle for superior side sealing against the cylinder wall, plus a chemically polished expander for enhanced oil drain-back
• CNC-controlled gap chamfer — optimizes compression and minimizes blow-by
• Application-engineered tolerances — designed to exacting specifications for proper combustion gas sealing and oil control
• Meets or exceeds OE performance standards

Clevite piston rings perform the critical function of sealing combustion gases within the combustion chamber while preventing lubricating oil from entering the combustion area. Ring materials, coatings, and tension are optimized for reduced friction and extended engine life. This set is an ideal choice for engine builders seeking dependable OE-quality replacement rings.