Fitment: for Nissan Sentra 2000. OE Number:132704M700. Material: Made of durable rubber material, sealed, oil-resistant, wear-resistant, high-temperature-resistant, corrosion-resistant, long service life, effectively preventing engine oil from seeping into the valve train.. Function: The function of the valve cover gasket is to seal the cylinder to ensure that the coolant or oil does not leak into the cylinder. Cylinder head gaskets prevent fluid and gas leakage into adjacent cylinders and surrounding coolant passages.. Replacement: If your valve cover is leaking, the oil level is consistently low, you see engine smoke, or you smell burnt oil, the valve cover gasket needs to be replaced..
