WB21X5243 Kitchen Aid Range Surface Element Infinite Switch. Replaces AP2023620, 2603, 301441, 301442, 301666, 301667, 301816, 301817, 301818, 301819, 301820, 304149, 305109, 305110, 305111, 305112, 306224, 306382, 306383, 307014, 307016, 315604, 315605, 315606, 320945, 320946, 320947, 320948, 320949, 321827, 324608, 324609, 330687, 334886, 334887, 334888, 334889, 334890, 334975, 335804, 336119, 336120, 337035, 339418, 339419, 342188, 342189, 342192, 342193, 342194, 342195, 342196, AH235991, EA235991, PS235991. Can be used with both 6" and 8" surface elements. Clockwise rotation; one click clockwise from OFF to HI. Fits many models. Click MORE DETAILS link for specific model coverage.