Cylinder Barrel & Piston Ring Kit 47mm for SX85 2013–2017, TC85 2014–2017, XN85.Complete standard sized replacement cylinder kit includes aluminum cylinder block, piston, piston ring, piston pin, connecting rod needle roller bearing, snap rings, cylinder block paper gasket, and O-type fluorine rubber sealing rings.Cylinder block features nickel silicon carbide plating and is honed to exact size for piston installation.OEM part numbers: cylinder block 47130038000, small end bearing 0770540020, big end bearing 0770800021, needle bearing 47030034000, lower cylinder paper gasket 47030035000.Weight: 944g.