Piston Rings STD replaces Partner 503 28 90-17
Piston Rings STD replaces Partner 503 28 90-17
Briggs & Stratton 281707Briggs & Stratton 392331Husqvarna 503 28 90-17Partner 503 28 90-17
Fits Models:
Partner K650 and 700 Active I, II and IIICylinder Diameter: 3.4375 "Piston Size: Std.Ethanol: Not compatible with greater than 10% ethanol fuelCylinder Diameter: 50 mmPiston Size: Std.Ethanol: Not compatible with greater than 10% ethanol fuelPackaged in reusable protective polycarbonate case