Champion Spark Plug Gaskets

Champion offers crushable gaskets for a variety of its spark plugs. They're available in a variety of diameters and thicknesses. Plugs with a flat seat use a crushable gasket to create a seal between the plug and combustion chamber. All spark plugs with a flat seat should include a gasket on the plug, or in the box. Gaskets should be replaced every time a plug is re-installed.