Lisle Lisle 19700 Valve Holder , black

For Both 14 millimeter and 18 millimeter Spark Plug Threads. Commonly used when valve springs or valve stem seals are replaced Comes with two-step fitting for both 14 millimeter and 18 millimeter threads Thread fitting to spark plug hole and other end to air supply Heavy duty 12" flexible hose allows easy access to spark plug hole and air supply Air pressure helps prevent the valve from falling into the combustion chamber See more product details