Mahle Rings Performance 4.190in x 1.5MM .151 RW Plasma-Moly Steel Top Ring Moly Ring Set

Starting with a plasma-moly steel top ring measuring 1.5mm thick is a solid choice for performance builds. This Mahle OE Moly Ring Set, part number 3010994, is built for a 4.190-inch bore, giving you a precise fit for your engine's cylinders. The top rings are designed for durability and heat resistance, while the second rings are moly-filled to help with sealing and reduce friction against the cylinder wall.

These rings are a popular option when rebuilding or upgrading an engine where reliable sealing and good compression are key. The combination of materials and the specific dimensions are chosen to work well together, helping to ensure your engine runs efficiently and maintains good power output. Mahle has a well-known reputation for making solid engine components, and this ring set reflects that.

Keep in mind that this particular ring set is not CARB approved and cannot be shipped to California. Always refer to your engine's specific service manual for installation procedures and any other components you might need for your rebuild.