Mahle Rings Performance Napier Steel 2nd Ring 4.160in x 1.0MM .136in RW Plain Ring Set

If you're rebuilding the top end of your engine, getting the piston rings right is crucial for proper sealing and performance. This Mahle OE Performance Napier Steel 2nd Ring is designed to replace the stock ring, helping to ensure a tight seal between the piston and cylinder wall. A good seal means better compression, less oil burning, and a healthier running engine.

This particular ring features a Napier hook design, which is a common update for the second ring groove. It's made from steel for durability and has a plain finish. The dimensions are 4.160 inches in bore size, with a 1.0mm thickness for the ring itself and a 0.136-inch groove depth. Mahle is a well-known name in engine components, and this ring is a solid option for anyone looking to restore their engine's performance with reliable parts.