Plug is used to block off any ORB AN threaded hole but O-ring, Stat-O-Seal or crush washer are sold separate. There are two -12 plugs in the package.
RBS had an engine builder customer retire and traded in a whole box of new unused parts giving the racer a chance a some great deals. Make sure these are correct for your application before purchasing. RBS has two, two pack's in stock so get it while they last!!!!!!!!!!!!!!!!!!!! Two packs are sold each.
Note: This is a used item. This item might have been taken in on a trade. RBS may have inspected this item and deemed re-usable. There is no warranty expressed or implied with this item.