Four Seasons HVAC Cut-Off Switch P/N:20056
Help protect your air conditioning system from excessive high-side pressure with this Four Seasons switch, part number 35867, a system-mounted high cut-out pressure switch (also listed as an HVAC cut-off switch). It is a direct-fit replacement for many classic Chrysler, Dodge and Plymouth vehicles, among them the 1974-1977 Dodge Charger, 1983-1985 Dodge 600 and 1982-1985 Dodge Aries. See the Buyer's Guide tab for the full list.
A high cut-out pressure switch mounts on the A/C system and monitors refrigerant pressure. When pressure climbs past its set point, it is designed to shut off the compressor, which helps guard the compressor and other system components against over-pressure. Four Seasons engineers and tests its parts and draws on more than 50 years of mobile A/C experience.
A failing cut-out switch may show up as a compressor that won't engage or shuts off unexpectedly, warm air from the vents, or a refrigerant leak at the switch. These symptoms can have other causes, so diagnose the system first. If a failed switch is the cause, this part replaces it. Follow the vehicle service information for installation, including any refrigerant handling it requires.
Will this Charger switch fit my 1974-1977 Dodge Charger?
Yes. Four Seasons 35867 is listed as a direct-fit replacement for the 1974-1977 Dodge Charger. It also fits the 1983-1985 Dodge 600 and 1982-1985 Dodge Aries, and the Buyer's Guide tab shows the rest.
What does a high cut-out pressure switch do?
It monitors refrigerant pressure in the A/C system. When pressure rises past its set point, it is designed to shut off the compressor, which helps protect the system from over-pressure.
What comes in the box?
You get the high cut-out pressure switch plus the gaskets, O-rings or seals needed to replace it properly.
What are signs the A/C cut-out switch may need replacing?
Common signs are a compressor that won't engage or cuts out unexpectedly, warm air from the vents, or a refrigerant leak at the switch. Diagnose the system first, because these symptoms can have other causes.
How does the switch hold up against corrosion?
The switch is zinc coated to help it resist corrosion. It is also color coded so it is easy to identify during service.
WARNING: These products can expose you to chemicals including lead and phthalates, 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.