Material Type: Paper and Metal Model Compatibility: Compatible with 250 RACING, 400 FACTORY, 450 EX, 520, 525 SX, 540 FACTORY, MXC, SX, XC-W, XC, SMS, SXS, MXC-G, and EXC-G motorcycles OEM Code: 59530036000 Package Includes: Cylinder cover gasket kit as shown in the product image : China Design: Aluminum bottom layer with thickened rubber gaskets This Motorcycle Cover Cylinder Gasket Kit is designed to replace the gasket assembly for the specified models.It includes all gaskets required for the cylinder cover area as depicted in the product image.The aluminum bottom provides structural support at the mounting interface, and the rubber gaskets are formulated to maintain sealing integrity under normal operating conditions.The kit is intended for use in restoring the sealing function of the cylinder cover assembly.