Mahle Rings 4.605in Bore Dia 1/16in PC479 Top Rings Plain Ring Set (48 Qty Bulk Pack)

What you get in this bulk pack are 48 sets of Mahle OE top piston rings, each designed for a 4.605-inch bore and featuring a 1/16-inch thickness. These are plain rings, meaning they don't have any special coatings or treatments beyond their base material, which is common for many engine builds where specific ring materials or coatings are chosen separately or are not required for the application.

Mahle is a well-known name in engine components, and these rings are intended for engine rebuilding applications where precise fit and reliable sealing are critical. The 1/16-inch top ring size is a standard dimension for many larger displacement engines, and having a bulk pack of 48 sets means this is ideal for shops that perform a high volume of engine work or for manufacturers building multiple engines. The plain ring design allows for flexibility in the overall ring package, whether you're using them with a specific second ring and oil control ring combination or as part of a complete Mahle ring set where the top ring is the primary sealing component.

It's important to note that these rings are not CARB approved and cannot be shipped to California due to emissions regulations. If you're working on an engine that requires specific emissions compliance in California, you'll need to look for an alternative. For all other applications where a standard, well-built 4.605-inch bore top ring is needed, this bulk pack from Mahle OE offers a straightforward solution for engine rebuilds.