Product Name: [Genuine Parts] Piston Ring Set (STD) 10B-E1603-00 Manufacturer Part Number: 10B-E1603-00 Compatible Manufacturer: YAMAHA Compatible Models: GEAR Gear BX50/BX50N/BX50S|JOG SA55J|4ST Veno|VOX|BYS50 W50F Compatible Genuine Product Number: 5ST-E1603-00, 10B-E1603-00 Specifications: