Mahle Rings 4.380in Bore Dia 1/16in Edge Width Ductile Plasma Moly Top Ring Moly Ring Set

This is a Mahle OE Piston Ring Set designed for a 4.380-inch bore diameter. These rings are a critical component for your engine's performance, sealing the combustion chamber to maintain compression and control oil consumption. The set includes a 1/16-inch edge width top ring, featuring a ductile plasma moly construction for enhanced wear resistance and longevity.

The ductile plasma moly top ring is built to withstand the high temperatures and pressures of combustion, helping to prevent blow-by and ensure efficient power transfer. Moly coatings on the rings further reduce friction between the piston and cylinder wall, contributing to smoother engine operation and potentially improved fuel economy. This set is a well-built option for engine rebuilds where reliable performance and durability are key.