Magnetic Drain Plug - 3/4-16

The MOROSO Magnetic Drain Plug 3/4-16 is a precision-engineered oil drain plug designed for vehicles where ferrous metal particle management is critical to engine longevity. Unlike standard drain plugs, this magnetic drain plug captures iron oxide and ferrous particles suspended in used oil—a passive but highly effective condition-monitoring feature that flags bearing wear, piston ring degradation, and internal corrosion before they become catastrophic failures. The 3/4-inch-16 thread size is a common metric in performance and import engine applications, making this plug a direct replacement for OEM installations across a wide range of vehicles.

Built from steel with a zinc oxide protective finish, the plug resists corrosion from acidic oil and saltwater environments. The integrated rubber O-ring provides a reliable, leak-proof seal on every installation, eliminating the need for additional washers or thread sealant. An Allen head socket design allows controlled torque application during removal and installation—critical for preventing cross-threading or stripping in aluminum valve covers and pan bosses. The magnetic tip is positioned to intercept particles in the oil stream while remaining fully submerged, maximizing collection efficiency across the service interval.

This plug is ideal for owners who service their own vehicles, track enthusiasts running extended oil change intervals, and professional technicians who value early detection of internal engine distress. The magnetic surface should be inspected during each oil change—a visible metal particulate film is normal; a sudden spike in particle volume signals internal wear requiring immediate diagnosis. For imported vehicles, high-performance builds, and any application where engine health monitoring matters, the MOROSO magnetic drain plug delivers measurable diagnostic insight at minimal cost.