The MTD 725-07539B Lawn Mower Throttle Sensor Assembly monitors throttle-related input within the mower's control system. It provides an electrical signal that helps the equipment's control components respond to throttle position or changes, depending on the system design. Proper sensor operation supports accurate input detection and engine control. Replacing a faulty sensor assembly ... https://www.wholetoolbox.com/mtd-725-07539b-lawn-mower-throttle-sensor-as/725-07539B.html