Dryer thermal cutoff kit. Includes one hi-limit thermostat 250° F (part #3390291), one-time thermal cut-off fuse 325° F, Instructions. These should be replaced at the same time. Commonly used with heating element part #279838. (For cutoff kit with 352° F fuse use part #279769).
Used on many Maytag, Whirlpool, Magic Chef, KitchenAid, Roper, Amana & Kenmore Dryers.