A Cylinder Block Side Cover Upper Gasket is used to seal the connection between the cylinder block and the side cover. It is made of a soft material, such as rubber, and is designed to prevent oil and coolant leaks. The main function of a cylinder block side cover gasket is to seal the connection between the cylinder block and the side cover.Attributes:• Manufactured to precise specifications and are built for durability and reliability• Designed to withstand high temperatures and pressuresApplications:A Cylinder Block Side Cover Upper Gasket is used to reduce noise from the engine.