I will make this right, since I overhauled those injectors. Just to clarify, the lower seals are on those injectors. The other part we are talking about is the receptacle the seal fits into. On my car, they are a hard plastic and not something that normally needs to be replaced. It's the rubber seal that wears out and causes leaks, and that's what I originally thought Biba was asking for, my mistake. If the plastic receptacles/female seals, or whatever they are called are bad it should be possible to use two lower seals together at the tip of the injector to get an air tight seal. I will send another set to Biba right away.