Mahle Rings Performance 4.470in x 1/16in HV385 Steel UCR .190in RW Moly Ring Set (48 Qty Bulk Pack)

These Mahle piston rings are built with a HV385 steel upper compression ring, measuring 4.470 inches in bore size with a 1/16 inch thickness. This specific steel alloy offers improved strength and durability compared to cast iron, making it a solid choice for performance engine builds where higher cylinder pressures are expected. The upper compression ring also features a Moly (molybdenum) coating, which is well-known for its ability to reduce friction and improve wear resistance, especially during the critical break-in period and under demanding operating conditions. This helps ensure a good seal and longevity for your engine.

The ring set includes a total of 48 rings, making it a bulk pack suitable for shops or builders working on multiple engines or larger projects. The second ring is a .190 inch thick steel ring, and the oil control ring is a standard tension design. Mahle OE is a well-known name in the automotive industry, supplying parts for many original equipment manufacturers, so you can trust the quality and fitment of these components for your engine rebuild. Proper installation is key for these rings to perform as intended; always refer to the manufacturer's service manual for specific ring gap, end gap, and installation procedures to ensure optimal performance and engine health.