Mahle Rings Performance Plasma Steel Top Ring 4.315in x 1.0MM .143in RW HVOF Moly Ring Set

Mahle OE Performance Plasma Steel Top Ring Set. These rings are built for improved performance and durability. The top ring features a plasma-moly coating applied using HVOF (High Velocity Oxygen Fuel) thermal spray technology, which creates a very dense and well-bonded layer that resists wear and reduces friction. This updated design helps ensure a good seal between the piston and cylinder wall, which is crucial for engine efficiency and power.

The plasma-moly coating is a notable improvement over standard cast iron rings, offering better resistance to scuffing and heat. This means they can handle more demanding conditions and maintain their sealing ability over a longer service life. The 1.0mm thickness for the top ring is a common performance specification, designed to work well within the piston groove for optimal sealing and oil control.

This ring set is intended for performance applications where an improved seal and greater durability are desired. Please note that these rings are not CARB approved and cannot be shipped to California.