Mahle Rings Perf 4.135in x 1.5MM .151 RW Plasma-Moly Steel Top Ring Moly Ring Set (48 Qty Bulk Pack)

This bulk pack includes 48 sets of Mahle OE Performance Piston Rings, designed for a 4.135-inch bore. Each set features top rings made from plasma-moly steel, known for its durability and resistance to wear, paired with moly-filled compression rings. These rings are crucial for sealing the combustion chamber, managing oil consumption, and transferring heat from the piston to the cylinder wall. Mahle has been a trusted name in engine components for a long time, and this set reflects their commitment to engine performance and longevity.

The plasma-moly steel top rings offer improved hardness and a lower friction surface compared to standard cast iron, which helps reduce cylinder wall wear and extend the life of your engine. The moly filling in the compression rings further enhances their ability to seat properly against the cylinder wall, ensuring a tight seal even under high combustion pressures. This bulk pack is ideal for engine builders, performance shops, or anyone undertaking multiple engine rebuilds where consistent, high-performance ring sets are essential. The precise dimensions and material selection are key to achieving optimal compression and oil control.

When rebuilding an engine, selecting the right piston rings is critical for overall performance and reliability. This Mahle set is built to meet demanding engine requirements. Please 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 clearances.