COLE HERSEE 24059 SOLENOID WIRING DIAGRAM
Faster, More Efficient Glow Plug Heating with a Solenoid
Solenoid, 12v, O.E.M. Quality Solenoid Ford Starter Solenoid SW3 STD # SS581, Niehoff #FF143A or Wells #F-496 approx. $5; Maine Sail reports: I use a Cole-Hersee (often the 24059) heavy duty/constant duty solenoids for this as I find they last longer than the no-name intermittent duty versions from an auto parts store..