503289029 Husqvarna Piston Ring superseded to 503289050

503289029 Husqvarna Piston Ring superseded to 503289050.  No original manufacturer’s packaging is available.  Fits Husqvarna 455, 460, 357XP, 357XPEPA, 359, 359EPA, 362, 362EPA, 371, 372EPA, 357, 357EPA Chainsaw; 371 EPA, 372 Chainsaws