For dependable operation of low air pressure warning systems. Sealed contact design prevents short circuits caused by moisture and contaminants. Normally On (Contacts open at rising pressure) Mounting stem: 1/4" -18 dryseal thread. Normally closed, open at 60 - 70 psi (413.7 – 482.6 kPa). 8-32 stud terminal. Replaces Chrysler 1787025, 1788700, Delco 3750911, 3929518, Ford B6Q, B8Q-18737A, C5TZ-2A574A, International 194702-R91, Motorcraft SW-377.