Mahle Rings 4.505in Bore .043in 1/16in 3/16in PC479 Fire Power High Tension Perf Eng Moly Ring Set

The top ring on this Mahle PC479 set is a 3/16 inch thick moly-faced compression ring, designed to handle the pressures of performance engines. This set is built for a 4.505 inch bore and features a 1/16 inch second ring and a 3/16 inch oil ring, all with high-tension designs to ensure a solid seal against the cylinder wall. Molybdenum coating on the compression ring helps reduce friction and wear, which is crucial for engines that see harder use.

Mahle has put together this ring set with performance in mind. The moly face on the top ring is a well-known choice for its durability and ability to seat quickly, helping to maintain compression and prevent blow-by. The high-tension construction means these rings apply consistent pressure against the cylinder walls, which is important for both sealing and oil control, especially in engines that operate at higher RPMs or under increased load.

This ring set is intended for performance engine builds where a reliable seal and good oil control are critical. Please note that this part is not CARB approved and cannot be shipped to California.