Product review (5 stars): Fits perfectly
I have no idea what my dryer's serial code is (because it's more than 15 years old at this point), but I made a guess based on the original (broken) knob and the product image. Luckily, this fit perfectly!

Just make sure to pry out the black plastic thing that was wrapped around the prong with a plier. It's part of the original knob and with it on, your new knob won't slide down all the way.