Recently the upper and lower seal went bad. There was a lot of rain coming so ordered the lower seal 1248270798 and installed it. Now I have started looking for the upper seal or cap and have been told it is no longer made. There are other parts that look exactly like they would fit but the website says there is no guarantee that it will fit. Does anyone know who sells upper seals or if 12482704987C45 or 12982702987C45 will work?