Metal Debris Capturing Drain Plug Dsnaduo 1 Pcs Aluminum Engine Magnetic Oil Drain Plug M12x1 Aluminum Alloy Magnetic Plug The purpose of this magnetic drain plug is to keep harmful metal fragments out of your engine. The purpose of this magnetic drain is to keep harmful metal fragments out of your engine. These plugs have a magnetism to collect the dirt from oil during operation Reduces friction in the engine by removing abrasive metallic debris from engine parts. Magnetic Oil Drain Plug M12-1.75, Head Size 15mm NOE 7041369 | Buy Online - NAPA Auto Parts Please check the size before you place an order, to avoid unnecessary losses. Made of Magnet and Aluminium Alloy, for a long service time, which is durable, practical , Thread Size: M12x1., 5., Total Size: 34x20mm / 1., 34x0., 79(H*D). M12 x1.5 Magnetic Oil Drain Plug Stainless Steel with Neodymium Magnet Red Copper Washer Gaskets Replacement for BMW Benz Description:The purpose of this magnetic drain plug is to keep harmful metal fragments out of your engine. Directly replace your broken one. When you change oil, just clean off the end terminal of the magnet and it could be re-used again.