Keep your A/C compressor clutch cycling the way it should with this Four Seasons switch, the A/C Clutch Cycle Switch / Cycling Pressure Switch 20959. It is a direct-fit replacement for the 2004-2005 Lincoln Town Car. See the "Vehicles it fits" section for engine details.
This system-mounted cycling pressure switch monitors refrigerant pressure. It turns the compressor clutch on and off as that pressure rises and falls, which helps keep the evaporator from icing over. The part is listed under both names, A/C clutch cycle switch and cycling pressure switch.
- Corrosion protection: The switch is zinc coated to resist corrosion.
- Seals supplied: It comes with the gaskets, O-rings or seals needed to replace the switch properly.
- Vehicle-specific: It is designed for specific vehicle applications.
- Color coded: Color coding makes the switch easy to identify.
- Four Seasons experience: Four Seasons engineers and tests the switch and has more than 50 years of experience with mobile A/C.
A cycling switch may need replacing if the compressor clutch will not engage, the compressor switches on and off rapidly, or the vents blow warm air. A low refrigerant charge and other system faults can cause the same symptoms, so diagnose the A/C system before you replace the switch.
Interchange: 1551032 · 207771 · 11120959 · 8508712 · 901226 · 4W1Z19E5610AA · 4W1Z19E561AA · 19188181 · 1711532 · YH1638 · A07771 · MT1312 · SW11155 · SW11155C
This part cross-references / interchanges with the following part numbers:
1551032, 207771, 20959, 11120959, 8508712, 901226, 4W1Z19E5610AA, 4W1Z19E561AA, 19188181, 1711532, YH1638, A07771, MT1312, SW11155, SW11155C
Frequently Asked Questions
What does a cycling pressure switch do?
It senses refrigerant pressure in the A/C system and turns the compressor clutch on and off. This helps keep the evaporator from freezing over.
Will this Lincoln Town Car switch fit my 2004 or 2005 Town Car?
It is a direct-fit replacement for the 2004-2005 Lincoln Town Car. Check the "Vehicles it fits" section for the details on your vehicle.
Does the switch come with seals?
Yes. Four Seasons includes the gaskets, O-rings or seals needed to replace the switch properly.
How is the switch protected against corrosion?
The switch is zinc coated to resist corrosion. It is also color coded so it is easy to identify.
What are signs that a clutch cycle switch may need replacing?
Warning signs include a compressor clutch that won't engage, rapid on-off cycling, or warm air from the vents. Low refrigerant and other faults cause the same signs, so diagnose the system first.
