Simpson, Westinghouse Dryer 150 Minute Flat Shaft Timer - Part # D024Simpson, Westinghouse 150 minute Flat Shaft Timer. Part No. D024. Replaces Part No. 0574300011, 0574300017, 574 300 17. Faucigny Instruments clockwork 2 1 2 hour timer with 5 minute cool down time. 4 terminals. Can also be used to replace 3 terminal types. Suits some late Simpson, Kelvinator & Westinghouse dryers with flat timer shaft. Includes some Sirocco models. If you are not sure of the suitability of this timer, please contact us with your model