Judith B Cornwall , VT January 18, 2016 Appliance: Model MDR251RHRO I needed to replace the rusted lower rack in my small frigidaire built in dishwasher I ordered the rack that was recommended on this site. it is not the same as the old rack- tine placement & silverware basket are different and wheels on the rack are smaller which can cause the rack to fall off of the track if you are not careful. Would have preferred replacing it with the same rack but this is an inexpensive & effective replacement. 4 People found this story helpful Do-It-Yourself Rating: Repair Time Estimate: Less than 15 minutes