fits year: 1973–1979.

( Brand: Ac ), ( Manufacturer Part Number: 339848 ), ( Part Type: Switch Pressure ), ( Placement On Vehicle: Front )
The 1973-1979 GM AC Pressure Switch 339848 is a vital component of the air conditioning system in certain General Motors vehicles from that era. This pressure switch is designed to monitor the pressure in the air conditioning system, ensuring that the refrigerant is flowing at the correct pressure to maintain optimal cooling performance and protect the system from damage.
The switch is a mechanical device that uses a diaphragm to sense changes in pressure. When the pressure in the system falls below the minimum level, the diaphragm moves, closing an electrical contact and activating the compressor. Conversely, when the pressure exceeds the maximum level, the diaphragm moves in the opposite direction, opening the electrical contact and deactivating the compressor. This helps to prevent overpressure and damage to the system components.
The switch is typically mounted on the high-pressure side of the air conditioning system, near the compressor. It is connected to the system using a hose and a pressure sensor. The switch is usually equipped with a pressure relief valve, which allows excess pressure to escape if the system becomes overcharged.
The 1973-1979 GM AC Pressure Switch 339848 is a high-quality component that is built to last. It is made from durable materials, including brass for the housing and stainless steel for the pressure sensor, to ensure long-term reliability and resistance to corrosion. The switch is also easy to install, with clear instructions and mounting hardware included in the package.
In summary, the 1973-1979 GM AC Pressure Switch 339848 is an essential component of the air conditioning system in certain General Motors vehicles. It is designed to monitor the pressure in the system and activate or deactivate the compressor as needed, ensuring optimal cooling performance and protecting the system from damage. This switch is built to last and is easy to install, making it a great choice for maintaining the comfort and reliability of your classic GM vehicle.
Pros of buying a 1973-1979 GM AC Pressure Switch 339848:1. Availability: These parts are often available from various automotive parts retailers both online and offline, making it relatively easy to find one.
2. Affordability: Compared to newer models, old parts like this can be more affordable due to lower production costs and lower demand.
3. Fitment: As it's an original GM part, it should fit perfectly in your vehicle without any modifications.
Cons of buying a 1973-1979 GM AC Pressure Switch 339848:1. Quality concerns: Being an older part, it may not have the same level of quality and reliability as newer parts.
2. Limited warranty or support: Many older parts come with limited or no warranty, and finding technical support for them can be challenging.
3. Potential compatibility issues: Although it's an original GM part, it might not be compatible with newer vehicles or systems.
Conclusion:While buying a 1973-1979 GM AC Pressure Switch 339848 can be a cost-effective solution for repairing your vehicle, it's important to weigh the potential benefits against the drawbacks. If you're comfortable with the potential risks and believe that the part will serve its purpose, then it could be a suitable choice. However, if you prefer a newer part with better warranty and support, you might want to consider other options. Ultimately, the decision should be based on your specific needs, budget, and comfort level with the part.
Switch, comp cut off pressure 275 all w a gm books show this will also fit Chevy GMC trucks corvette,Cadillac old's 77 Buick Pontiac all with Ac.
Switch, comp cut off pressure 275 a, g, HX, HIV w a switch, A/C CPR cut off press f w switch kit, comp.
Switch, comp cut off pressure.
Cut off press gm new and never installed x w a cut off press.
C switch, A/C comp.
This is an original Chevy nos Ac compressor cut off switch.