Mahle Rings Performance Metric HV385 89.5MM x 1.0MM/1.2MM/2.8MM Drop In Std Tension Moly Ring Set

This is a Mahle OE Piston Ring Set, part number HV385. It's designed for an 89.5mm bore and features a 1.0mm top ring, 1.2mm second ring, and a 2.8mm oil ring. These are standard tension rings with a moly coating, which helps reduce friction and improve wear resistance, making them a solid choice for engine rebuilds where durability is key.

The moly coating on the top and second rings is a notable feature that helps them seat properly against the cylinder wall and withstand the heat and pressure of combustion. This particular set is a drop-in fit, meaning it's designed to work with your existing pistons without modification, simplifying the installation process for a standard engine rebuild. Mahle is a well-known name in engine components, and this set reflects their focus on reliable performance.