Simpson, Kelvinator, Westinghouse Dryer 1/4" Shaft Timer - Part # 0574777004Simpson, Kelvinator, Westinghouse 1 4" Shaft Timer. Part No. 0574777004. Replaces 0574300001, 0574300004, SMD006. Diehl clockwork 2 hour timer with 5 minute cool down time. 3 terminals. Can also be used to replace 4 terminal types. Suits older Simpson Minimax, Kelvinator & Westinghouse dryers with 1 4" D shape timer shaft. Includes instructions on how to connect the wires if replacing a 4 terminal type. We have been supplying appliance parts to the