PISTON CYLINDER RINGS FOR CHAINSAW ENGINE PM 36 38 MAC 538E 539E CALIFORNIA 42cc Diameter 40 D.PIN 9 COMPLETE PISTON BM 011710 MC CULLOCH Code: 009308 Original code: 538247253 PARTNER CHAINSAW ENGINE 542E P 545E PL 546E Diameter 40 D.PIN 9 COMPLETE PISTON BM 011710 R.O: 538247253 AT