Help your vehicle keep track of engine coolant temperature with this Four Seasons switch, the 37879 Engine Coolant Temperature Sensor Switch, which uses brass construction designed for accurate temperature sensing. It is listed for many models, among them the 2007-2009 Jeep Grand Cherokee, 2007-2009 Dodge Sprinter 2500 and 2007-2009 Dodge Sprinter 3500. It is a direct-fit replacement for the listed applications. See the "Vehicles it fits" section for the full list and engine details.
- Brass construction: designed for accurate temperature sensing.
- Zinc-coated terminal: helps resist corrosion.
- Color coded: for easy identification.
- Sealing components: contains the gaskets, O-rings or seals required to properly replace the product.
Four Seasons engineers and tests its products and brings more than 50 years of mobile A/C experience to its replacement parts.
Signs the coolant temperature sensor may need replacing include an erratic or inaccurate temperature gauge, a check engine light, or coolant seeping around the sensor. Other cooling-system faults can cause the same symptoms, so diagnose the cause first. If the sensor is at fault, the 37879 replaces it.
Interchange: 5175764AA · 68068747AA · 68068747AB · 68068747AC · 1712550 · 0009050600 · 0009056102 · 0041539728 · 0999053700 · 41539728 · 9050600 · 999053700 · A14229 · 207100 · CT0071 · SU13511
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This part cross-references / interchanges with the following part numbers:
5175764AA, 68068747AA, 68068747AB, 68068747AC, 37879, 1712550, 0009050600, 0009056102, 0041539728, 0999053700, 41539728, 9050600, 999053700, A14229, 207100, CT0071, SU13511
Frequently Asked Questions
What does the Four Seasons 37879 coolant temperature sensor switch do?
It monitors engine coolant temperature and sends that reading to the vehicle's systems. Its brass construction is designed for accurate temperature sensing.
Does it come with a gasket or O-ring?
Yes. Four Seasons states the part contains the gaskets, O-rings or seals required to properly replace the product.
What features help this sensor resist corrosion?
The terminal is zinc coated to help resist corrosion. The sensor is also color coded for easy identification.
What are signs a coolant temperature sensor may need replacing?
Signs include an erratic or inaccurate temperature gauge, a check engine light, or coolant seeping at the sensor. Other faults can cause these symptoms, so diagnose the cause before replacing the sensor.
Will this sensor fit a 2007-2009 Jeep Grand Cherokee?
Yes. The 2007-2009 Jeep Grand Cherokee is one of its listed applications. Check the "Vehicles it fits" section for the engine details for your vehicle.
