This Mahle OE plain second ring set is a grey iron second ring sized 3.1299" with a 1.5mm edge width, supplied as a standard plain ring for piston ring packs. It’s intended to restore proper ring seating and control in applications matching the listed bore size. Use it when rebuilding engines to complete a correct ring set with OEM-style fit and finish.
Mahle Rings 3.1299in X 1.5MM Edge Width Grey Iron BT Second Ring Plain Ring Set