SQCS auto parts Valve Cover Gasket 1120160321 for Mercedes Benz W202 W203 K

What Is A Valve Cover Gasket?
As a vehicle's engine operates, the intake and exhaust valves open and close rapidly while the pistons move up and down in the cylinder. These mechanical actions require a constant supply of hot oil to lubricate the moving parts. The valve cover gasket helps to prevent oil from escaping the engine by providing a tight seal between the engine and valve cover, typically made of rubber, plastic, or cork. As a result, the valve cover gasket is one of the engine's critical components.