Mahle Rings Perf Gas Nitride Steel 4.205in x .043in .157 RW Bulk Plain Ring Set (48 Qty Bulk Pack)

This is a bulk pack of 48 Mahle OE Performance Gas Nitride Steel Piston Rings, designed for gasoline engines. These rings feature a 4.205-inch bore size with a .043-inch ring thickness and a .157-inch ring groove width. The nitride steel construction offers improved durability and wear resistance compared to standard cast iron rings, making them a solid choice for engine rebuilds where performance and longevity are key.

The nitride treatment on these rings is a surface hardening process that significantly increases their resistance to wear and scuffing. This is particularly important in high-performance applications or engines that see frequent use, as it helps maintain a proper seal between the piston and cylinder wall over time. The steel material itself is strong and resilient, able to withstand the pressures and temperatures found within an engine cylinder. This bulk pack is ideal for machine shops or engine builders who frequently work on multiple engines or require a consistent supply of high-quality piston rings for various projects.

When rebuilding an engine, ensuring a proper seal is critical for performance, oil control, and emissions. These Mahle rings are well-made and designed to create that seal effectively. It's important to note that these rings are not CARB approved and cannot be shipped to California. Always refer to your engine's specific service manual for proper installation procedures and ring gap specifications.