Fits Stens 430-686 Interlock Switch For 523034One New Aftermarket Replacement Interlock Plunger Switch for Lawn and Garden Equipment This interlock plunger safety switch is a double pole, snap in replacement for lawn tractors, zero turn mowers, and power units across a wide range of brands. Manufactured by Delta Systems Inc., it features both normally open and normally closed circuits, allowing it to serve brake, seat, PTO, and other safety interlock positions. The snap in mount design makes