For dependable operation of low air pressure warning systems. Sealed contact design prevents short circuits caused by moisture and contaminants. Normally Off (contacts close at rising pressure) electric fuel pump switch. Operation: Contacts close at 3.5 - 6.5 psi ( 44.9 - 24.2 kPa) Mounting stem: 1/8" -27 dryseal thread 11/32" long. .250" blade terminals. Insulated contacts. Replaces Chrysler 1841416, 2510026, International 217552-R-91.