Treadmill On/Off Switch Compatible with these models: SOLE  ATT8 - 588810 F60 - 560816 F63 - 563810,563812,563814,563816,563881,563886,563887,563888 F65 - 565810,565812,565813,565816 F80 - 580810,580812,580816,580881,580886,580887,580888 F83 - 583810,583881,583886,583887,583888 F85 - 585810,585812,585816,585881,585886,585887,585888 S73 - 573881,573886 S77 - 577810,577812,577816,577881,577886,577887,577888 TT8 - 588812,588816,588881,588886,588887,588888 TT8C - 589810