Question 1

What should I check to ensure a thermostat or housing fits my 2020 Ram 1500?

Accepted Answer

Confirm the engine size (e.g., 3.6L V6, 5.7L V8, or 3.0L EcoDiesel) and whether your truck has the standard or heavy-duty cooling package. The housing design and thermostat opening temperature vary by engine. Always verify part numbers against your VIN.

Question 2

What are common symptoms of a failing thermostat or housing on a 2020 Ram 1500?

Accepted Answer

Typical signs include engine overheating or running below normal temperature, erratic temperature gauge readings, coolant leaks near the housing, and poor heater performance. A check engine light may appear with codes related to coolant temperature.

Question 3

Should I replace the thermostat and housing together?

Accepted Answer

Yes, it is generally recommended to replace both as an assembly. The housing often includes the thermostat and seals, and the plastic housing can warp or crack over time. Replacing both ensures a proper seal and reduces the risk of future leaks.

Question 4

Is it better to use an OEM or aftermarket thermostat and housing?

Accepted Answer

OEM parts are designed to match the original specifications and often include the correct gasket or O-ring. Quality aftermarket options can be reliable, but verify that the thermostat opening temperature matches the OEM rating (typically around 195°F for gasoline engines). Avoid cheap no-name brands that may fail prematurely.

Question 5

Can I install the thermostat and housing myself, or should I hire a mechanic?

Accepted Answer

The job is moderate difficulty. You’ll need to drain coolant, disconnect hoses and electrical connectors, and remove the housing. Access can be tight on some engines. If you have basic mechanical skills and tools, it’s doable, but be sure to follow a service procedure and use new coolant. Otherwise, professional installation is advisable.

Thermostats & Housings for 2020 Ram 1500

More for your 2020 Ram 1500

Thermostats & Housings for 2020 Ram 1500: FAQ