Dryer would get very hot and then turn off

It was actually my father, he doesn't use the internet. He thought that because the dyer got real hot and then shut off he thought the thermostat wasn't working and the high temp shutoff was okay. He went through the manual and found the part and took it out. He called the service number but they wanted $50 dollars plus shipping. I saw it was a Thermo-disc part so I tried the manufacture's website but I couldn't match the numbers on the back to their part numbers. I tried several other sites and your site was the cheapest. It was real easy to use the web site and diagrams to find the right schematic and part. I ordered it online and it was delivered in 2 days with the regular shipping. When he first put it in the dyer didn't turn on. He found no power coming out of the timer so he cleaned the contacts and it worked. Thanks for making the ordering so easy.