This is a brand light switch with knob. This replaces switch part numbers: Allis Chalmers 70208197 and 70227233, John Deere AB2687R, AF687R, and AL2857T. This fits the following Allis Chalmers models: B, C, CA, WC, WD, WD45, and WF, John Deere models A, AO, AR, B, BO, BR, D, G, H, L, and LA. Thanks For Your Business!!