EXPANSION PLUG STEEL. Dorman's Engine Oil Galley Plugs are available in multiple styles, including Cup Type, Pilot Seal?, Reverse Taper, Concave, Quick-Seal® Rubber and Quick-Seal ® Copper. Our uniquely designed Pilot Seal Expansion Plug ensures a leak-proof fit. We also offer Engine Oil Galley Plug Kits.Steel Cup Expansion Plug 14.80mm SC, Height 0.260.Engine, Oil, Galley, Plug, Plugs, Expansion.Core Plug.Welsh PlugFeature - Benefit 1: Many sizes availableFeature - Benefit 2: Conveniently available in packs of different quantitiesFeature - Benefit 3: Constructed from high quality steel, copper, brass, or rubberFeature - Benefit 4: Dorman's Engine Oil Galley Plugs are constructed to strict engineering quality standards.Dorman is one of the most versatile and innovative manufacturers in the automotive aftermarket as they provide the parts and equipment that you need