Motorcycle Complete Cylinder Gasket Kit compatible with 450 525 EXC MXC SX XC XC-F 450 MXR 525 IRS models.Includes all necessary gaskets for cylinder and engine assembly.Designed to proper sealing between engine components.Suitable for use during engine rebuilds or maintenance.Kit contains intake, exhaust, base, and head gaskets along with included hardware where applicable.Matches specifications for fitment and function. Notice: This replacement item is produced by an independent supplier.All brand and model mentions are for compatibility purposes only.