Mahle Rings Plasma Moly Steel Top Compression Ring 4.315in x .0625in .190in RW Moly Ring Set

Mahle is known for making solid engine components, and these Plasma Moly steel top compression rings are no exception. If you're rebuilding an engine and need reliable rings that will hold up, these are a popular choice. They measure 4.315 inches in bore size, with a ring thickness of 0.0625 inches and a groove depth of 0.190 inches.

These rings use a plasma-moly coating on the top compression ring, which is a well-known method for improving durability and reducing friction. This means they're built to handle the heat and pressure inside the cylinder, helping to maintain good compression and seal the combustion chamber effectively. They fit right into the piston groove, making them a straightforward replacement when you're working on your engine's internals.