MAHLE 50620.020 Engine Piston Ring Set +0.020" Oversize

The MAHLE Original 50620.020 is an oversize (+0.020") replacement engine piston ring set engineered to OE form, fit, and function standards. MAHLE is the world's largest manufacturer of piston rings, bringing decades of OE research and development directly to the aftermarket.

Key Features:

• +0.020" Oversize — designed for engines bored 0.020" over standard for a precise, reliable fit after cylinder reconditioning
• Cast iron construction — upper compression rings feature a positive twist and barrel face profile for rapid, consistent break-in
• High tensile and yield strength with excellent hardness and low ring mass for stress resistance and minimal groove pound-out
• Superior oil control — MAHLE CP-20 oil rings utilize an exclusive 20-degree ear angle for optimal side sealing within the piston oil ring groove
• Second ring design provides improved combustion gas management, top ring stability, and reduced power loss through efficient blow-by control
• Long service life with low friction, excellent cylinder wall conformability, and minimized oil consumption
• Trusted by professional engine builders and technicians — formerly marketed under the Perfect Circle brand name

MAHLE Original piston ring sets are the product of the same OE engineering that drives innovations such as narrow compression rings, low-tension oil rings, and coated compression rings for diesel applications. Whether you're rebuilding a high-mileage engine or completing a precision overbore, the MAHLE 50620.020 delivers the quality and reliability expected from a global OE-level manufacturer.