Mahle Rings 4.0200 X 1.5MM Plasma-Moly Steel Top Ring Moly Ring Set (48 Qty Bulk Pack)

Mahle is well-known for making solid engine components that go into a lot of factory vehicles. This bulk pack of piston rings, part number 3010507B, is a great example of the kind of parts they produce. These rings are designed for a 4.0200 inch bore and feature a 1.5mm top ring made of plasma-moly steel, paired with a moly ring. This combination is built for durability and good sealing in a wide range of engine applications.

This set comes in a bulk pack of 48 individual ring sets, making it ideal for shops or engine builders who work on multiple engines at once. The plasma-moly steel top ring is chosen for its strength and wear resistance, while the moly coating on the second ring helps reduce friction and improve oil control. These features work together to ensure a good seal between the piston and cylinder wall, which is crucial for proper engine performance, compression, and oil management. The precise sizing and material selection are key to Mahle's reputation for reliable engine parts.

When rebuilding an engine, the piston rings are a critical component that directly impacts the engine's health and longevity. This pack of 48 sets ensures you have plenty on hand for your projects. Please note that these rings are not CARB approved and cannot be shipped to California. Always refer to your specific engine's service manual for detailed installation procedures and specifications.