WB3K5240 GE Range Knob/infinite Switch GE OEM Part: WB3K5240 All Our Parts Are Factory Approved For A Proper Fit Brand New in Original Retail Packaging WB3K5240 Knob/Infinite Switch Part Number WB3K5240 replaces 256625, AH248581, EA248581, PS248581, WB03K5240.