Early Model Hoover or Simpson Washing Machine Genuine TimerNew Hoover or Simpson Genuine Washing Machine Mechanical Timer (Choose from list). Simpson Part No. 574 200 ???, Hoover Part No. 47578 ??? Replacement mechanical timer to suit Australian Hoover, Admiral, Simpson & Kelvinator large and medium washing machines. The main item pictured is a 574 200 29, suitable for Simpson model 23 146. The other one is a 574 200 167 which is typical of types with a plastic shaft. You can use this listing to order a timer