Mahle Rings Perf Plasma Moly Steel Top Comp 4.030in x .0625in .190 RW Moly Ring Set (48 Qty Bulk Pk)

Mahle is a well-known name in the automotive industry, especially for their engine components. This particular set of piston rings, the 3011016B, is built for performance applications where durability and sealing are critical. They are designed for a 4.030-inch bore, a common size for many performance engine builds.

What sets these rings apart is the plasma moly coating on the top compression ring. This advanced coating helps reduce friction and wear, which means the rings can handle more stress and heat over time. The steel construction of the top ring also adds to its strength, making it a solid choice for engines that see hard use. The second ring is also a moly design, further enhancing the sealing and oil control capabilities of the piston assembly. This set includes 48 rings, making it a bulk pack suitable for engine builders or shops working on multiple engines.

When installing these rings, pay close attention to the ring gap specifications provided by Mahle for your specific application. Proper gapping is crucial for performance and longevity, especially with performance-oriented rings like these. While these rings are not CARB approved and cannot be shipped to California, they offer a robust solution for engine builds where performance and reliability are top priorities.