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
- 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
