Mahle Rings Perf Steel Napier 2nd Ring 4.350in x .043 .135in RW Plain Ring Set (48 Qty Bulk Pack)

This is a bulk pack of 48 Mahle OE Performance Steel Napier 2nd ring sets. These rings are designed to fit pistons with a 4.350-inch bore diameter, featuring a .043-inch ring width and a .135-inch groove depth. The Napier hook design on the second ring helps improve oil control and prevent blow-by, which is crucial for engine performance and longevity.

Mahle uses well-built steel for these rings, offering solid durability and consistent tension across a range of operating temperatures. The Napier hook design is a notable feature that helps the ring rotate slightly in its groove, improving its ability to scrape oil from the cylinder wall and maintain a good seal. This bulk pack is ideal for engine builders or shops working on multiple engines that require this specific ring size and type.