This is a very common Whirlpool thermal fuse replacement used on most Whirlpool and Kenmore dryers. It is a disposable, one time use thermal fuse with 2 terminals and is located on the exhaust duct. To see if the thermal fuse went bad, you would need to check for continuity with an ohmmeter. Always make sure to unplug any appliance when checking for continuity. If there is no resistance, the thermal fuse is bad and needs to be replaced.
This thermal fuse will fit most Whirlpool and Kenmore made dryers. Made by Whirlpool. Part Number: 3390719.