●[Wide Applications] - This aftermarket cylinder piston gasket kit fit for Yamaha YZ85 2002-2018,for Yamaha YZ80 1993-2001 ●[ Excellent Design] - Complete standard sized replacement cylinder kit. Cylinder Bore and Stroke 47.50mm x 47.80mm; Cylinder Displacement 85cc / Compression 8.2:1 ●[Package Contents] - Cylinder,Piston,Piston Ring,Wristpin,Circlips (2),Needle Bearing,Base Gasket,O-Ring #1,O-Ring #2 as picture shows ●[Part Number] - 43K-11611-00-00,4ES-11311-20-00,4ES-11311-30,4ES-11311-30-00,4ES-11351-00-00,4ES-11631-01-A0,4ES-11633-00-00 ●[Part Number] - 5PA-11311-20-00,5PA-11311-30-00,5PA-11631-00-D0,93210-56459-00,93210-84724-00,93450-16115-00.Direct fit,no modification needed,easy to use and install.Please contact us if you have any questions