Mahle Rings 4.065in Bore Dia 1/16in PC479 Top Rings Plain Ring Set (48 Qty Bulk Pack)

Mahle OE Piston Rings are a bulk pack of 48 top rings, designed for a 4.065-inch bore diameter. These plain ring sets, part number PC479, are essential for rebuilding or refreshing an engine's top end. Proper ring seal is critical for maintaining compression, controlling oil consumption, and ensuring efficient combustion. Mahle is a well-known name in engine components, and these rings are made to OE specifications, meaning they are built to fit and function as the original parts did.

This particular set features a 1/16-inch top ring width, a common specification for many performance and heavy-duty engine applications. The plain ring design is straightforward and effective, focusing on creating a solid seal against the cylinder wall. When you're working on an engine that requires a large quantity of rings, like a fleet vehicle or a performance shop stocking up, a bulk pack like this offers a practical solution. It ensures you have enough rings on hand for multiple builds or for engines that use more than the standard four cylinders.

It's important to note that these rings are not CARB approved and cannot be shipped to California. Always ensure you are using the correct ring set for your specific engine build and refer to your engine's service manual for proper installation procedures. A good ring seal is fundamental to engine health and performance, and Mahle OE rings are a solid option for those looking for reliable replacement parts.