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    Old Air Products

    AC Safety Switch, 1974-78 CH/EC/MC, Binary Pressure

    Vehicle Specific fits 4 models
    0 Reviews
    Part# CH28451
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    A must-have switch

    Factory-correct reproduction

    This authentic reproduction switch mounts to the “VIR” (valve in receiver) and acts as a safety shut-off for the compressor in the event of a leak which is signaled by low pressure. The Hi/Lo switch is an excellent upgrade for cycling systems and features the correct terminals for a hassle-free connection to original wiring.


    WARNING: This product can expose you to chemicals including lead, sulfur, nickel, chromium, vanadium, titanium, polyvinyl chloride, and 4,4’-methylenebis (2-chloroaniline), which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

    Vehicle Fitment

    Make & Model Year Range Application Details
    Chevrolet Chevelle 74-77 binary pressure
    Chevrolet El Camino 74-78 binary pressure
    Chevrolet Malibu 78 binary pressure
    Chevrolet Monte Carlo 74-78 Binary Pressure
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    AC Safety Switch, 1974-78 CH/EC/MC, Binary Pressure
    Old Air Products AC Safety Switch, 1974-78 CH/EC/MC, Binary Pressure