Rotary 4 Pole 12V INT Solenoid Starter Snapper: 1-8604, 1722739, 1755382YPOne New Aftermarket Replacement 4 Pole 12V Starter Solenoid for Snapper Riding Mowers and Zero Turn Mowers This 4 pole, 12 volt internally grounded starter solenoid acts as the electrical switch that routes battery current to the starter motor when the ignition is engaged. It features a double pole chassis ground design, accepts both 1 4" and 5 16" terminal posts, includes flat mounting brackets, and ships with an adapter for spade connector wiring.