Timer Knob Specifications this Knob Accepts A D-Shaped Shaft. This Part Fixes The Following Symptoms: This Part Fixes The Following Symptoms: Timer Will Not Advancethis Part Works With The Following Products: This Part Works With The Following Products: Dryer. This Part Works With The Following Products: This Part Works With The Following Products: Frigidaire, Gibson, Kelvinator. Part, 131873203 Replaces These: Part, 131873203 Replaces These: Ap2578375,823103,131118903Cross Parts: 131118903, Ea418910, Ps418910, Ah418910, Ap2578375, 823103