This genuine OEM Kenmore slide switch (Part #KC09ESUZZ000) fits the Kenmore 81214 and BC4002. The switch controls power or suction settings, sliding between positions to open and close the electrical contacts inside the vacuum.A slide switch that sticks, feels loose, or no longer engages leaves you unable to set the machine reliably and can be a safety concern where contacts arc. Replacing it with the correct OEM switch restores clean, positive action between settings and dependable operation. Fits: Kenmore 81214, BC4002 Function: slides to control power or suction settings Benefit: firm, reliable switching and safe operation Tip: note the wire positions before removing the old switch The switch installs as a direct-fit replacement without modifications. Confirm your model number on the data plate before ordering to be sure of the fit.