Mahle Rings Perf Gas Nitride Steel 4.035 x .043 .157 RW Bulk Plain Ring Set (48 Qty Bulk Pack)

Mahle OE is known for making solid engine components, and these performance gas piston rings are a great example of their work. If you're rebuilding an engine for a performance application, especially one that runs on gasoline, these rings are built to handle the demands. They're designed for a 4.035-inch bore and feature a .043-inch top ring and a .157-inch oil ring, with a nitride steel construction that's tough and durable.

The nitride treatment on these rings is a key feature. It hardens the surface, which helps them resist wear and maintain a good seal against the cylinder wall, even under higher pressures and temperatures found in performance engines. This means better compression and more consistent power delivery. Because they come in a bulk pack of 48, these are ideal for shops or builders working on multiple engines or those who need a good supply of high-performance rings on hand. They fit right and are made to last.

When you're putting an engine back together, the piston rings are critical for sealing the combustion chamber and controlling oil. Choosing well-made rings like these from Mahle OE ensures you're starting with a solid foundation for your build. Make sure to check your specific engine's requirements to confirm these dimensions are correct for your application.