Smart-O Anti-Leak and Anti-Loss Sump Plug - 3/4" x T16 - R21BP1

Engineered to prevent engine oil loss and reduce the risk of engine damage by the complete loss of oil. Anti-leak and anti vibration function created by by a dynamic sealing high-tech O-ring. The O-ring expands on contact with oil. The plugs are reusable and have sealing washers to match each plug size.