The Honda "TIN" pan repair reduces the hole from M14x1.5 to M12x1.5. The pan must be made of tin. (a magnet would stick to it) There cannot be any oversize plugs in the pan prior to this PTI-SERT repair. The pan should just be what is called a "leaker". This requires a new M12x1.5 drain plug and washer you can pick up at your local auto parts store. Kit only includes 2 driver tools and 5 inserts 12151