Mazda Repair: What are Insulators?, mazda dealer, mazda protege

Question
Jame recently I had some car trouble with my 2000 mazda protege. I took it in to the mazda dealer and they hooked it up to the electrical machine and said it wasn't my sparkplugs that were the problem it was the insulators. Do you carry them because I can't seem to find them on this site. If not do you know of where on the internet I could find them at a affordable price.  

Answer
hi shawn,
Any local mechanic will carry insulators. I myself carry them. As for finding them on the internet a good place to start would be about.com and go to the automotive section. They have many different links in that section for buying parts and they are all at the best prices.
hope this helps
James