Mahle Rings Performance Steel Napier THM-13 4.125 x .1.5MM .150RW Plain Ring Set

These Mahle OE piston rings are built with a steel Napier hook design on the second ring. This unique feature helps to scrape excess oil from the cylinder wall, which is crucial for preventing oil burning and ensuring proper lubrication. The rings are designed for a 4.125 inch bore and feature specific dimensions of 1.5mm for the top ring and 0.150 inches for the oil control ring, ensuring a precise fit and function within your engine.

Crafted from durable steel, these rings are made to withstand the rigors of engine operation. The Napier hook on the second ring is a well-known design element that contributes to better oil control, especially under varying engine loads. This set is a solid option for rebuilding or refreshing your engine, aiming for reliable performance and longevity.