A:Answer Hey Sheila! Based on our research, your older model has the following cutout dimensions: 25" W x 41-1/4" H x 23-5/8" D. The new model has the following cutout requirements: 25" W x 41-1/8" H x 23-1/2" D. It looks like the new model has some small variations in the cutout space, in the height and depth. Some adjustments may need to be made to your cutout space to make sure that this new model will fit. - We do offer a Fit Guarantee as well. GE Appliances guarantees your new qualifying 27" or 30" GE Profile or GE built-in standard single, double or microwave combination wall oven will fit your existing cabinet cut-out of compatible model width and configuration or we will provide up to $300 in the form of a prepaid MasterCard toward the cost of professionally modifying your cabinet’s height or width. Note: A prepaid Visa card will be issued for purchases made through Costco. If you would like more details about this rebate, feel free to send us an email or reach out to us on social media. We hope that this helps and that you're staying safe! -Michael@GEA