CYLINDER PISTON CRANKSHAFT GASKET BEARING FOR YZ80 YZ 80 1993-2001 This kit is suitable for cases where the cylinder has failed, compression is low, or a piston seizure has occurred.The set includes cylinder, piston, rings, wrist pin, circlips, and a complete bottom end gasket and seal kit as shown in the image.It also contains a full crankshaft assembly with main bearings and needle bearing.The cylinder is constructed from aluminum to aid heat dissipation and features an internal cast iron liner.Gaskets are made from performance-grade materials to improve sealing and.The kit is designed for standard bore size of 47.5 mm and includes a 14 mm steel piston pin.Specifications: Condition: Aftermarket Quantity: 1 set Material: Aluminum Displacement: 79cc Bore type: Standard Bore size: 47.5 mm Stroke: 47.8 mm Piston pin diameter: 14 mm Piston pin length: 38 mm Compatible with: YZ80 1993–2001 Replacement part numbers: Cylinder: 4ES-11311-10-00, 4ES-11311-20-00, 4ES-11311-30-00 Crankshaft: 4ES-11400-02-00 Cylinder base gasket: 4ES-11351-00-00 Piston: 5PA-11631-00-D0, 4ES-11631-01-A0 Piston pin: 4ES-11633-00-00 Piston ring: 4GT-11611-00-00 Bearing (4ED): 93306-20468-00 Bearing (4BA): 93306-30442-00 Oil seal (28x40x8-132): 93103-28011-00 Oil seal: 93102-20447-00 Piston circlips: 93450-16115-00 (2 pieces) Seal: 93210-56459-00 Seal: 93210-84724-00 Needle bearing: 93310-21417-00 (14 x 18 x 16.5 mm) Housing cover gasket: 4BA-12428-00-00 Crankcase cover gasket 1: 4ES-15451-00-00 Crankcase cover gasket 2: 4ES-15461-00-00 OEM part numbers are provided for reference and compatibility verification only.This product is not affiliated with any manufacturer.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 All components are included as pictured.Compatibility should be confirmed by comparing with existing parts and schematics.