Product review (5 stars): Worked great, Can also be easily adapted.
This Y303404 [Maytag number] element/housing assembly is not a Maytag/Whirlpool OEM part [it is an aftermarket]. But it worked out very well.
What attracted me to it was Amazon's fantastic price [24.00]. The only initial snag was that it was not the part # listed for my Dryer but the dimensions were identical.  My dryer is a Maytag DE7500 model which calls for a Y303778 assembly. The dealers I called said they were not listed as interchangeable parts but did not know why. So I rolled the dice and ordered this one. The only visual difference is that the  Y303778 sheet metal tube is in two halves that are sheet metal screwed together. The Y303404 sheet metal tube is a one piece round duct, like a furnace duct. Diameter and length are exactly the same.
This replacement would have worked right out of the box, if not for this simple modification. One of the two sensors that have to be transferred from your old housing fastens to one of the two flanges where the halves screw together. This Y303404, being perfectly round of course, has no flange to fasten it to. Simply measure and mark the exact same location on the new tube and find or make a small, metal 90 degree angle piece and drill and fasten it to the spot marked with 2 sheet metal screws. This will create a flange similar to your original tube. I have many parts to choose from but do you know what worked out better that anything? The little universal, multi-holed sheet metal angle piece that came with one of my son's "Erector" sets. I cut it to 2 or 3 inches long and I was off to the races.
I did find only one complaint on this part, in the reviews, that the tube came apart after a while where is was spot welded together. They  manufacturer must have read that, because the one I received had been drilled and a sheet metal screw installed at one end. I don't know why they just installed one screw, but I drilled & screwed two more holes at the center and at the other end to ensure no problems [total of 3]. Just don't drill right at the spot welds.
So that's it and I am very happy with this product. The price for this assembly is great [24.00]. My original Y303778 at Amazon was 99.00 and was 124.00 at the online dealer. Bargain, huh?
T'care,
MR