4 Position Ignition controls 4 functions: There are 7 terminals on the back of the switch. Replace OEM number: Ignition switch replace 193350, 532193350. Please make sure the OE number matches the part carefully. This switch is made of high-performance ABS and high-quality brass, with durability and excellent conductivity. It only takes a few minutes to replace your mower ignition switch. Unplug wire connector, squeeze the tabs on the back of the switch and pull it out. Stuff the wire connector back through the hole, plug the connector back onto the new switch and push the switch into the hole until the tabs click., Manufacturer: YINETTECH