This low pressure switch is normally closed and rated at 0 psig, opening at 70 psig, with a no lock-tite clockwise decrease design allowing adjustment down to 5 psig. It is built for Mack CH model applications.Interchanges:2079129180685Mack 1MR2414APACCAR K301394FeaturesNormally closed switch, rated 0 psigOpens at 70 psigFully adjustable down to 5 psigNo lock-tite, clockwise decrease adjustmentFits Mack CH model applicationsTech SpecsType: Low Pressure SwitchOperation: Normally ClosedOpens At: 70 psigAdjustable Range: Down to 5 psigAdjustment: No lock-tite, clockwise decreaseDimensions (HxWxL): 1 x 1 x 10 inAdditional InformationFitment: All Mack CH model trucks.