Mahle Rings 4.005in Bore Dia 1/16in PC479 Top Rings Plain Ring Set (48 Qty Bulk Pack)

Mahle is a well-known name in the automotive industry, particularly for their expertise in engine components. This bulk pack of 48 Mahle PC479 top piston rings is designed for a 4.005-inch bore diameter, featuring a 1/16-inch face width. These rings are a plain ring design, meaning they are a solid piece of metal without any special coatings or complex shapes, which can be a straightforward choice for many engine rebuilds.

When you're rebuilding an engine, the piston rings are critical for sealing the combustion chamber, controlling oil consumption, and transferring heat from the piston to the cylinder wall. Mahle's reputation is built on providing reliable components that perform as expected. This particular set is a bulk pack, making it suitable for shops or individuals working on multiple engines or performing extensive rebuilds where a large quantity of high-quality rings is needed. The 4.005-inch bore size is a specific measurement, so ensure this matches your engine's requirements for a proper seal and optimal performance.

This set includes 48 top rings, providing ample supply for several engine builds. It's important to note that these rings are not CARB approved and cannot be shipped to California. Always refer to your engine's specific service manual for installation procedures and recommended ring gap settings to ensure a successful rebuild.