There are a wide variety of gasket types on a typical vehicle, from head gaskets which are installed between the cylinder head and the engine block to engine gaskets which seal out harmful elements and keep the engine safe and tightly sealed. To ensure that you get the correct head gasket, it is best to check the size and shape of the one currently installed so you can compare with the listed gaskets. Some important information for selecting the correct part is the type of gasket design needed (composite or metal), thickness, number of holes/ notches, bore diameter and date limitation of the unit. As car manufacturers regularly update certain peripherals and design of their models, some head gaskets will only be suitable for particular models of certain years. Note: It is always a good idea to replace head bolts with new ones when replacing the head gasket to reduce the risk of premature failure.