MAHLE 50514CP.020 Original Engine Piston Ring Set 0.020 in. Oversize

The MAHLE Original 50514CP.020 is a 0.020-inch oversize engine piston ring set engineered to OEM specifications for reliable engine rebuilding and restoration. MAHLE is the world's largest manufacturer of piston rings, and the Original line reflects decades of original equipment development and real-world validation.

This oversize ring set is designed for engines that have been bored 0.020 inches over standard, delivering proper piston-to-wall contact, consistent combustion sealing, and effective oil control after a cylinder bore. Each ring is manufactured to tight tolerances to restore compression and minimize blow-by, helping the rebuilt engine run efficiently and cleanly.

Key Features:

• 0.020 in. (0.50mm) oversize — designed for use after a standard overbore engine rebuild
• High tensile strength and high yield strength with excellent hardness and low ring mass for long service life
• Engineered for stress resistance and minimal groove pound-out to extend engine longevity
• Promotes excellent cylinder wall conformability for reliable sealing across the bore
• Delivers good blow-by control with low friction for improved oil economy and power retention
• Manufactured to OEM-equivalent material grades and surface finishes
• Part of the MAHLE Original line — formerly Perfect Circle, trusted by professional technicians for over 100 years

Whether you're performing a routine engine rebuild or restoring a worn engine back to factory performance standards, the MAHLE Original 50514CP.020 piston ring set provides the precision fit and proven durability that professional engine builders rely on.