Help your A/C system cycle the compressor clutch at its intended temperature with the Four Seasons switch, part number 35823, a system-mounted preset cycling temperature switch (A/C clutch cycle switch / thermostatic switch). It fits many vehicles, among them the 1984 Jeep Cherokee, 1988-1994 Kenworth K220 and 1988-1993 Kenworth C540. It is a direct-fit replacement for the listed applications; see the "Vehicles it fits" section for the full list of Jeep, Kenworth and Mack applications.
A cycling switch senses temperature within the A/C system and switches the compressor clutch circuit on and off at its preset point. This helps keep the evaporator from icing over during operation.
- OE-style connectors: provide a straightforward electrical hookup.
- Quality contacts: designed to maintain proper electrical conductivity.
- Sealing components included: contains gaskets, O-rings or seals to properly replace the switch.
- Precision engineered: engineered and tested by Four Seasons, backed by over 50 years of mobile A/C experience.
Signs a cycling switch may need replacing include a compressor clutch that won't engage, a clutch that short-cycles rapidly, a clutch that never cycles off, weak cooling, or a frosted evaporator. A low refrigerant charge or other electrical faults can cause the same symptoms, so diagnose the system before replacing the switch.
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Frequently Asked Questions
What does an A/C clutch cycle switch do?
It senses temperature in the A/C system and turns the compressor clutch on and off at a preset point. This helps prevent the evaporator from icing up.
Will this work as a Jeep Cherokee switch for my 1984 model?
Yes. The 1984 Jeep Cherokee is a listed application, along with trucks such as the 1988-1994 Kenworth K220 and 1988-1993 Kenworth C540. Check the "Vehicles it fits" section for the full list.
Is the cycling temperature adjustable?
No. Four Seasons describes the 35823 as a preset cycling temperature switch, so its switching point is fixed rather than user-adjustable.
What comes with the switch?
Four Seasons notes that it contains the gaskets, O-rings or seals needed to properly replace the switch. It also uses OE-style connectors.
What are signs the switch may be failing?
A clutch that won't engage, cycles rapidly, or stays on until the evaporator frosts may indicate a faulty switch. Low refrigerant or wiring faults can cause the same symptoms, so diagnose first.
