Save Up to 15% on Back to School Auto Parts
24/7 Customer service
USD
Add your vehicle
Address
Login
Cart
Item
$0.00
A-Premium Back to School Car Deals Up to 15% OFFA-Premium Back to School Car Deals Up to 15% OFF
Add your vehicle to ensure fitment/Choose a yearRequired Fields
Select a different vehicle
Make/Model
VIN
Save

2020 Kia Soul Thermostat

3 items

Upgrade your vehicle's thermostat with A-Premium's high-quality options. Choose reliability and durability for a smoother ride.

  • All filters
  • Sort By
  • Price
  • Brand
  • Material
  • Warranty
Thermostat Housing Assembly with Sensor for Kia Soul 2020-2021 Seltos 2021 2.0LThermostat Housing Assembly with Sensor for Kia Soul 2020-2021 Seltos 2021 2.0L
A-Premium®Part # APTHA0207
Thermostat Housing Assembly with Sensor for Kia Soul 2020-2021 Seltos 2021 2.0L
4.685 Reviews
$24.99
Edit ZIP code
2-year warranty
90 days free return
Fits 2020 - 2021 Kia Soul, 2021 - 2021 Kia Seltos
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: 2020 Kia Soul
Item LocatedUnited States
Quantity1
MaterialAluminum
Part interchange
256002E100
item #1002LNE7
Show less
Beck/Arnley 143-0950 Engine Coolant Thermostat
Beck/ArnleyPart # 143-0950
Beck/Arnley 143-0950 Engine Coolant Thermostat
51 Reviews
$27.99
Edit ZIP code
3-year warranty
90 days free return
Fits 2011-2012 Hyundai Elantra, 2013-2014 Hyundai Elantra Coupe, 2013-2016 Hyundai Elantra, 2013-2017 Hyundai Elantra GT, 2014-2014 Hyundai Genesis Coupe, 2014-2015 Hyundai Tucson, 2016-2018 Hyundai Tucson, 2016-2018 Hyundai Tucson, 2016-2018 Hyundai Tucson, 2016-2021 Hyundai Tucson, 2018-2018 Hyundai Tucson, 2018-2018 Hyundai Tucson, 2018-2020 Hyundai Elantra GT, 2019-2021 Hyundai Tucson, 2019-2021 Hyundai Tucson, 2019-2021 Hyundai Tucson, 2020-2020 Hyundai Elantra, 2012-2019 Kia Soul, 2014-2015 Kia Forte, 2014-2016 Kia Forte Koup
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: 2020 Kia Soul
Item LocatedUnited States
Quantity1
Part interchange
143-0950
item #1000XE1K
Show less
Beck/Arnley 143-0900 Engine Coolant Thermostat
Beck/ArnleyPart # 143-0900
Beck/Arnley 143-0900 Engine Coolant Thermostat
51 Reviews
$27.99
Edit ZIP code
3-year warranty
90 days free return
Fits 2012-2017 Hyundai Veloster, 2012-2019 Hyundai Accent, 2015-2019 Hyundai Sonata, 2016-2018 Hyundai Tucson, 2017-2020 Hyundai Elantra, 2018-2020 Hyundai Elantra GT, 2018-2021 Hyundai Kona, 2019-2021 Hyundai Veloster, 2010-2021 Kia Soul, 2012-2015 Kia Rio, 2014-2016 Kia Forte Koup, 2014-2018 Kia Forte5, 2016-2016 Kia Rio, 2016-2016 Kia Rio, 2016-2016 Kia Rio, 2016-2016 Kia Rio, 2016-2016 Kia Rio, 2016-2020 Kia Optima, 2017-2019 Kia Rio, 2020-2020 Kia Forte
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: 2020 Kia Soul
Item LocatedUnited States
Quantity1
Part interchange
143-0900
item #1000XK8P
Show less

What is an engine thermostat?

 While all engines can become too hot, if your thermostat isn't working correctly, your engine's well-being is at serious risk. The engine thermostat, often simply referred to as a thermostat, regulates the engine's operating temperature within an optimal range (typically around 195 to 220 degrees Fahrenheit).

How does a car thermostat work?

As a temperature-sensitive valve within the cooling system, a car thermostat responds to changes in coolant temperature. Understanding how it works by the following breakdown steps:

  • Closed position (cold start)

Initially closed to help the engine warm up quickly.

  • Heating up

The engine generates heat during operation.

  • Opening the thermostat

A temperature-sensitive element (usually wax) causes the thermostat to open gradually.

  • Coolant flow

When open, coolant flows from the engine to the radiator.

  • Maintaining optimal temperature

Adjusts coolant flow to maintain the ideal engine temperature.

  • Temperature regulation

Continuously adjusts to prevent overheating and ensure efficient operation.

Signs of a bad thermostat

  1. Overheating: The engine becomes excessively hot due to a stuck-closed thermostat.
  2. Low or fluctuating temperature: A thermostat stuck open results in a cooler engine, affecting fuel efficiency and heating.
  3. Temperature warning light: Illuminates to indicate engine overheating due to a faulty thermostat.
  4. Poor fuel efficiency: Stuck-open thermostat reduces fuel efficiency as the engine operates less efficiently at lower temperatures.
  5. Inadequate cabin heating: Insufficient cabin heating in cold weather with a thermostat that's stuck open.
  6. Coolant leaks: Gasket or sealing issues can lead to coolant leaks.
  7. Rapid temperature fluctuations: The gauge shows rapid swings between hot and cold.
  8. Engine running hot at idle: Higher engine temperature during idle or in traffic due to restricted coolant flow.
  9. Slow or inconsistent warm-up: Longer-than-normal warm-up times, even in moderate weather.
  10. Inconsistent heater operation: This affects the performance of the vehicle's heater, causing inconsistent or inadequate heating in cold weather.

Related Blogs

Why Does Coolant Boil After You Turn the Engine Off?

Learn why coolant boils or bubbles after you turn the engine off, how heat soak affects the cooling system, and how to diagnose leaks, trapped air, cap, thermostat, fan, water pump, or head gasket problems.

Jul 29, 2026