Mahle Rings 4.040in Bore .043in1/16in 3.00MM Plasma Moly Ductile Low Tension Reduced Moly Ring Set

This set of Mahle OE piston rings features a plasma moly ductile iron top ring designed for a 4.040-inch bore. The rings are built with a low tension, reduced moly design, which helps them seal effectively against the cylinder wall. This type of ring construction is often chosen for its ability to reduce friction and wear, contributing to better engine performance and longevity.

The plasma moly coating on the top ring is a key feature, offering improved durability and resistance to scuffing compared to plain cast iron. The specific dimensions, including the .043-inch top ring width, 1/16-inch second ring width, and 3.00mm oil ring, are critical for proper fitment and sealing within the piston groove. Mahle OE rings are well-built to meet the demands of engine rebuilding, aiming for a solid seal that maintains compression and controls oil consumption.

When rebuilding an engine, selecting the right piston rings is crucial for the overall health and performance of the powerplant. This set from Mahle OE is a popular choice for many engine builds where precise fitment and reliable sealing are important.