Mahle Rings Performance Steel Napier 2nd Ring 3.3563in x 1.2MM .135in RW Plain Ring Set

This set includes the piston rings you need for a single cylinder rebuild. Specifically, you're getting a performance steel Napier 2nd ring designed for a 3.3563 inch bore, measuring 1.2mm thick with a .135 inch ring groove width. These rings are a plain style, meaning they don't have any special coatings or treatments beyond their base material, making them a straightforward and reliable choice for many engine applications.

Mahle is a well-known name in engine components, and these rings are built to meet the demands of performance applications. The Napier hook design on the second ring helps with oil control and proper sealing against the cylinder wall, which is crucial for maintaining compression and preventing blow-by. This attention to detail in the ring design helps ensure your engine runs efficiently and reliably.

When you're rebuilding an engine, the piston rings are a critical component for sealing the combustion chamber. Choosing a well-built set like these from Mahle is a smart move to ensure the longevity and performance of your engine. Remember that these rings are not CARB approved and cannot be shipped to California.