Mahle Rings Performance Gas Nitride Steel 4.080 x .043 .157 RW Plain Ring Set

These Mahle OE piston rings are made from nitride steel, a material chosen for its improved durability and resistance to wear. The ring set features a 4.080 inch bore size with a .043 inch ring thickness and a .157 inch oil ring width, making them a solid option for performance gas engine builds. The nitride treatment on the steel helps them hold up better under the stresses of combustion, contributing to a more reliable seal between the piston and cylinder wall. This helps maintain compression and control oil consumption, which are critical for engine performance and longevity.

When you're rebuilding an engine, the piston rings are a crucial component that directly impacts how well the engine seals and runs. Mahle has a long history of providing well-built engine parts, and this set is designed to meet the demands of performance applications. The precise sizing and material choice are intended to ensure a good fit and function within the cylinder bore, helping to restore or enhance the engine's original performance characteristics. Proper installation is key to getting the most out of these rings; always refer to the manufacturer's installation instructions for details on seating and break-in procedures.