MAHLE 51563.020 Original Engine Piston Ring Set Oversize - 0.020

The MAHLE 51563.020 is a complete OE-quality engine piston ring set sized at 0.020" oversize, designed to restore proper compression, oil control, and sealing performance during engine rebuilds. Manufactured by MAHLE Original — the OE supplier to major automakers worldwide — this ring set is engineered to meet or exceed original factory specifications.

Key Features:

• 0.020" Oversize — designed for use with bored cylinder walls machined 0.020" over the standard bore diameter
• Upper Compression Ring (UCR): Cast iron construction with plasma-moly facing for superior scuff resistance and fast break-in
• Lower Compression Ring (LCR): Cast iron construction for reliable secondary sealing
• Oil Control Ring (OCR): Stainless steel rails with chrome facing and expander for precise oil management and reduced oil consumption
• Engineered to OE tolerances for consistent ring gap, axial height, and radial wall thickness
• Reduces blow-by and restores lost compression in worn or rebuilt engines
• Complete set includes all rings required for one full engine

MAHLE is a globally recognized OE manufacturer and aftermarket supplier with a long history of producing pistons, rings, and engine components for passenger car, light truck, and commercial applications. The MAHLE Original line delivers the same fit and performance standards as factory-installed components, making it a trusted choice for professional engine builders and rebuilders.