384312 OMC PISTON-RING SET

The 384312 is a 0.030 inch oversize piston ring set for OMC Johnson/Evinrude outboard motors, designed for one piston only. This set contains 2 rings (compression and oil control) for pistons that have been bored oversized, typically when reconditioning a cylinder with wear or damage. The oversize configuration allows restoration of proper ring clearances and compression sealing. Available as new genuine OEM Johnson Evinrude parts.