Includes seal with holes in behind lever, tap to tank seal, filter bowl seal, and o-ring for diaphragm plunger tip. Includes face plate screws. All the seals in the fuel tap.Viton rubber, not affected by Ethanol in modern fuel.                     Diaphragm is NOT included

 If you tap is leaking from the fuel outlet, your diaphragm is not the problem, it is the o-ring at the tip

  Library photo, different to the later L-B models