Magnetic Drain Plug 3/8in NPT

The Magnetic Drain Plug 3/8in NPT is engineered for equipment maintenance professionals and machinery operators who need reliable particle capture during fluid changes. This steel drain plug removes ferrous metal debris and wear particles from oil, hydraulic fluid, and coolant systems, protecting engine and transmission components from premature wear. Magnetic drain plugs are essential for preventive maintenance in industrial, automotive, and heavy equipment applications where fluid contamination directly impacts operational lifespan and performance.

This model features a robust steel construction with natural finish and a 7/16 inch square head design that provides secure grip and easy installation in tight engine compartments. The 3/8 inch NPT (National Pipe Thread) connection ensures compatibility with standard drain ports on most industrial and automotive equipment. The integrated magnetic core actively attracts ferrous particles suspended in fluid, accumulating them on the plug surface where they remain isolated from the system—a passive yet highly effective contamination control method that requires no electricity or moving parts.

Technicians and fleet operators benefit most from this drain plug during routine oil changes on transmissions, differentials, gearboxes, and hydraulic systems. The compact 4.2 x 0.75 x 5.5 inch profile and lightweight 0.09 lbs design make installation and removal straightforward without specialized tools. Verify 3/8 inch NPT thread compatibility with your equipment's drain port before installation; this plug is a direct replacement for OEM magnetic drain plugs across most heavy equipment manufacturers.