Gold Plug MP01 Magnetic Oil Drain Sump Plug. This magnetic drain plug is designed to remove ferrous metal particles from your engine oil, which can lead to engine damage. By extending the life of your engine, it provides superior protection. The plug is easy to install, replacing your existing engine oil drain plug, and includes one washer. Made in Montana, USA, it's installed as factory equipment on high-end vehicles. Removes ferrous metal from engine oil that can lead to damage. Extends the life of your engine. The Gold Standard in Engine Protection! Accept NO substitutions.