Can't Locate the 3 letter suffix for Magtag model...

Question

My Magtag oven Model cwe9000 needs new door hinges. I was told that I need the 3 letters that follow cwe9000 to order the correct parts. Where can I find these 3 letters on the stove? I previously ordered hinges for this model and they turned out to be too small. The parts store told me that I need the three letters to get the correct parts. Hope someone can help,Thanks,Ed