Mahle Rings 4.0300 Bore Dia 3/16in Edge Width CP20 Oil Ring Std Tension Chrome Ring Set

With a 4.030 inch bore diameter, this Mahle OE piston ring set is built for engines that require a precise fit. The 3/16 inch edge width on the oil ring, combined with standard tension, helps ensure a solid seal against the cylinder wall. These rings feature a chrome face, a well-known material choice for its durability and ability to handle the friction and heat found in an engine's combustion chamber.

Mahle has been a name in engine components for a long time, and this set reflects that experience. The standard tension design is a popular choice for many rebuilds, offering a good balance of sealing capability and ease of installation. The chrome plating on the compression rings is there to resist wear and provide a smooth surface that works well with the cylinder bore, helping to maintain compression and control oil consumption over time.