Mahle Rings Performance Gas Nitride Steel 4.160 x .043 .157 RW Plain Ring Set

These Mahle piston rings are made from nitride steel, a material chosen for its ability to withstand high temperatures and resist wear. The 4.160 inch bore size and .043 inch ring thickness are specific dimensions for certain engine builds where precise fitment is key. The .157 inch oil ring rail is also a critical measurement for proper oil control within the cylinder.

The nitride treatment on these rings is a surface hardening process that helps them stand up to the rigors of combustion and friction. This makes them a solid option for performance applications where you need rings that can handle more stress than standard cast iron rings. They are designed to seal the combustion chamber effectively, which is crucial for making good power and maintaining engine health.