CYLINDER PISTON CRANKSHAFT GASKET BEARING FOR YZ80 YZ 80 1993-2001 This kit is designed for use when experiencing issues such as low compression, cylinder blow-through, or piston seizure.It includes all necessary components to rebuild the engine bottom end.Kit includes cylinder, piston, piston rings, piston pin, circlips, complete crankshaft assembly, main bearings, and a full bottom-end gasket and seal set.The cylinder is constructed from aluminum with an internal cast iron liner for and efficient heat dissipation.functiongrade materials are used for the gaskets to sealing.The kit is intended for standard bore applications with a 47.5 mm bore size and uses a 14 mm steel piston pin.Displacement is 79cc with a stroke of 47.8 mm.Piston pin overall length is 38 mm.Replacement part numbers included for reference: 4ES-11311-10-00, 4ES-11311-20-00, 4ES-11311-30-00 – Cylinder 4ES-11400-02-00 – Crankshaft 4ES-11351-00-00 – Cylinder base gasket 4PA-11631-00-D0, 4ES-11631-01-A0 – Piston 4ES-11633-00-00 – Piston pin 4GT-11611-00-00 – Piston ring 93306-20468-00 – Bearing (4ED) 93306-30442-00 – Bearing (4BA) 93103-28011-00 – Oil Seal (28x40x8-132) 93102-20447-00 – Oil Seal 93450-16115-00 – Circlips, piston (2) 93210-56459-00 – Seal 93210-84724-00 – Seal 93310-21417-00 – Needle bearing (14 x 18 x 16.5 mm) 4BA-12428-00-00 – Housing cover gasket 4ES-15451-00-00 – Crankcase cover gasket 1 4ES-15461-00-00 – Crankcase cover gasket 2 Designed to fit YZ80 models from 1993 to 2001.Part compatibility should be verified using schematics and physical comparison with existing components.Package includes: 1 x Crankshaft 1 x Cylinder 1 x Piston kit 1 x Bottom end gasket kit 1 x Seal kit 1 x Oil seal kit 1 x Bearing kit Components are provided as shown in product images.