Help your engine's electrical system keep track of coolant temperature with this Four Seasons switch, the Coolant Temperature Sensor / Switch 36455, which monitors engine coolant temperature and reports it as an electrical signal. It fits many vehicles, among them the 2002-2007 Dodge Ram 1500, 2002-2007 Dodge Ram 2500 and 1998-2007 Jeep Grand Cherokee, as a direct-fit replacement for the listed applications. See the "Vehicles it fits" section for the full list and engine details.
This part is listed under both names, engine coolant temperature sensor and switch.
- Brass construction: built of brass for accurate temperature sensing.
- Zinc-coated terminal: the terminal is zinc coated to resist corrosion.
- Color coded: for easy identification.
- Sealing included: comes with the gasket, O-ring or seal needed to properly replace the unit.
Four Seasons engineers and tests its products and brings more than 50 years of mobile A/C experience to its lineup.
Signs this sensor may need replacing include erratic or incorrect temperature readings, a check engine light, or cooling fan operation that doesn't match engine temperature. Those symptoms can have other causes, so diagnose the cooling and electrical systems first. If a failed coolant temperature sensor / switch is the cause, the 36455 replaces it.
Interchange: 1550741 · AC8843 · 56027873 · 207741 · HS860 · 11136455 · 901683 · 19144703 · 19189501 · 301775 · 1712460 · M56027873 · A77741 · 211860 · MT1645 · SU3035
This part cross-references / interchanges with the following part numbers:
1550741, AC8843, 56027873, 207741, 36455, HS860, 11136455, 901683, 19144703, 19189501, 301775, 1712460, M56027873, A77741, 211860, MT1645, SU3035
Frequently Asked Questions
What does the Four Seasons 36455 coolant temperature sensor / switch do?
It monitors engine coolant temperature and sends that reading to the vehicle's electrical system as a signal. It is listed under both names, coolant temperature sensor and switch.
Does it fit the 2002-2007 Dodge Ram 1500 and Ram 2500?
Yes. The 36455 is a direct-fit replacement for the 2002-2007 Dodge Ram 1500 and 2002-2007 Dodge Ram 2500. Check the "Vehicles it fits" section for engine details.
Will it fit a 1998-2007 Jeep Grand Cherokee?
Yes, the 1998-2007 Jeep Grand Cherokee is a listed application. See the "Vehicles it fits" section for engine-level details.
What comes with this coolant temperature sensor?
It includes the brass sensor/switch, which has a zinc-coated terminal and is color coded for easy identification, along with the gasket, O-ring or seal needed to properly replace the original.
What are signs a coolant temperature sensor may need replacing?
Possible signs include erratic or incorrect temperature readings, a check engine light, or cooling fan operation that doesn't match engine temperature. These can have other causes, so diagnose first.
