Do you really have a Y303815 heater assy in stock?
Answer Hello Mary. No, This part has been permanently discontinued by the manufacturer and we don't know of any source or replacement for the part. That is why the parts page says No longer available. Sorry.
What should the temperature be inside dryer? I'm only reading 190' after 5 min.
The normal range of a dryer is between 90 and 150 degrees. If you are getting temp of 190 you will want to check your venting for restrictions.