HIGH QUALITY REPLACEMENT PISTONS RINGS 20-108-04-S FITS THESE KOHLER ENGINES: SV620, SV610, SV601, SV600, SV590, SV591, KS595, KS590, KS540, KS530 THAT HAVE A 94MM BORE 3.70" IN AMERICAN MEASUREMENT PLEASE VERIFY CORRECT PISTON RINGS BEFORE ORDERING NOTE: THIS HIGH QUALITY MADE PISTON RINGS ARE NOT MADE IN TAIWAN OR CHINA