Is this an exact fit for Goodman Model GMP125-4, Serial # 9706835599?

Yes, this is an exact fit for GMP125-4 as it has the same cabinet size, which should be 21" wide. The opening on the top should be the same for both models as well.

While we don't have this furnace immediately available, the shipping time of 2-3 days is accurate as of 2/21/22. If you were to order it today, you can expect a shipping confirmation email within those 2-3 days.

If you have any further questions, please call us and we will be happy to assist you.