Longacre 33320 Magnetic Drain Plug 3/8" NPT Fitment High-Strength Magnetic Core

In a high-revving race engine, metal-on-metal wear is an inevitable reality. Tiny ferrous particles—too small for some filters to catch—circulate through your oiling system, acting like liquid sandpaper on your bearings and cylinder walls. The Longacre 33320 Magnetic Drain Plug acts as a final line of defense, pulling these harmful microscopic fragments out of suspension and locking them safely to the plug.

Featuring a 3/8" NPT thread, this plug is a universal fit for many aftermarket oil pans, dry-sump tanks, and differential housings. The high-strength magnet is integrated into the core of the plug, ensuring it won't vibrate loose under the intense harmonics of a racing chassis. By inspecting the plug during every oil change, you gain a vital "early warning system" for your engine’s health—letting you spot a potential failure in the garage before it becomes a catastrophe on the track.

Key Features

• High-Strength Magnetic Core: Engineered with a powerful magnet that captures microscopic steel and iron debris, keeping your oil cleaner and extending the life of your expensive engine internals.

• Universal 3/8" NPT Fitment: The industry-standard pipe thread makes this an ideal upgrade for custom oil pans, rear-end pumpkins, and external oil reservoirs.

• Early Warning Diagnostic Tool: Checking the "fuzz" on the magnet during maintenance provides instant feedback on the wear rates of your rings, cams, and lifters.

• Rugged Steel Construction: Built to withstand the torque and heat of racing environments without stripping or leaking.

• Leak-Free Seal: Precision-cut threads ensure a tight, secure fit that maintains oil pressure and prevents messy leaks in the pit stall.