Our high quality, all billet aluminum oil fill plugs are CNC machined to precision standards and have a convenient Knurled surface & a built-in, alloy Allen bolt bonded to the inside, for positive “no leak” tightening. Great for motorized bicycles or kart racing engines. Includes o-ring. Used on Joker’s race bikes with “B&S Animal” engines. … Continue reading "Briggs & Stratton Oil Filler Plug"