COVER ASSY-ROCKER*24538088FOR MODEL:CHEVROLET:CHEVROLET N200 / N300*A cylinder head cover, also known as a valve cover, is a protective cover that sits atop the cylinder head of an internal combustion engine.Regular maintenance of the cylinder head cover, including checking for leaks and ensuring that it is properly sealed, is important to prevent engine damage and maintain optimal performance. Se a tampa da cabeça do cilindro estiver danificada ou vazando, ela deve ser substituída prontamente para evitar problemas mais sérios.