Blake C Chicago , IL April 05, 2020 Appliance: Frigidaire Refrigerator FRT18B4AW6 Frigidaire Refrigerator Frt18b4aw6: Missing freezer shelf. How to replace Protector Cap. Freezer was missing a shelf, but there were holes to put one in. Ordered this part even though it wasn’t supposed to be for my model and it worked! It was a bit of struggle to put it in but the shelf is really secure. I ordered the end caps for it as well. Shipping was fast, I got the part in 2 days after ordering. 1 People found this story helpful Do-It-Yourself Rating: Repair Time Estimate: Less than 15 minutes