Mahle Rings 3.9350in X 5/64in Cast Claimer Top Compression Ring Plain Ring Set

This set includes the top compression rings you need for a 3.9350-inch bore. Mahle is a well-known name in engine components, and these rings are designed to seal the combustion chamber effectively. They are a plain ring design, meaning they don't have any special coatings or features, making them a straightforward replacement part.

These rings are made from cast iron, a durable material commonly used for piston rings. The 5/64-inch width is a standard size for many top compression rings, ensuring a good seal against the cylinder wall. When installing, proper ring gap is crucial for performance and longevity, so be sure to check the manufacturer's specifications for your specific application.