Mahle Rings Perf Gas Nitride Steel 4.155in x .043in .157 RW Bulk Plain Ring Set (48 Qty Bulk Pack)

When you're rebuilding an engine, especially one that's going to see regular use, the piston rings are a critical component. What you get in this bulk pack from Mahle OE are 48 sets of performance gas nitride steel piston rings. Each ring is precision-made to a 4.155-inch bore size, with a .043-inch top ring thickness and a .157-inch second ring height. This specific configuration is designed for gasoline engines that demand reliable sealing and durability.

Mahle has a long-standing reputation for well-built engine components, and these rings are no exception. The nitride steel construction offers improved wear resistance compared to standard cast iron rings, which is crucial for maintaining compression and preventing oil blow-by over time. The precise manufacturing ensures a proper seal against the cylinder wall, helping to optimize combustion efficiency and reduce oil consumption. This bulk pack is ideal for shops or builders who frequently work on performance gasoline engines and need a consistent supply of high-quality rings.

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 installation procedures and recommended ring gap settings to ensure optimal performance and longevity of your rebuild.