Jesse V Portland , OR April 05, 2015 Burnt waveguide cover causing sparks and flames during microwaving Ordered part. Installed part. They don't list dimensions on website but the photo of the part is taken on a grid with 1 inch squares so I could see dimensions on that. That wasn't apparent on the site and had to call to find that out. 1 People found this story helpful Do-It-Yourself Rating: Repair Time Estimate: Less than 15 minutes