2020 Subaru Crosstrek Thermostats – OEM Temperature Control for Engine Protection

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Thermostats for 2020 Crosstrek – Precision Engine Cooling You Can Count On

Your 2020 Subaru Crosstrek relies on a properly functioning thermostat to regulate engine temperature and prevent overheating or inefficient cold running. If your temperature gauge fluctuates, the engine overheats, or cabin heat is lacking, a failing thermostat may be the cause.

OEM thermostats are engineered to Subaru’s strict specifications. They open and close at exact temperature thresholds to maintain stable engine performance, fuel efficiency, and emissions control. With corrosion-resistant materials and tight sealing gaskets, OEM parts offer long-term reliability and perfect fitment.

21236AA070 - : Thermostat Gasket for Subaru Image

Thermostat Gasket

Subaru 21236AA070
Engine Cooling. Front. Ascent. WRX. Forester. With turbo. 2.0L hybrid. Impreza. With hybrid, lower. Crosstrek.
$3.06
MSRP $4.40
Save $1.34
30.5% Off
21210AA191 - : Engine Coolant Thermostat for Subaru Image

Engine Coolant Thermostat

Subaru 21210AA191
XV Crosstrek. Engine Coolant Thermostat - Subaru (21210AA191) The Engine Coolant Thermostat - Subaru (21210AA191) is a...
$23.32
MSRP $33.50
Save $10.18
30.4% Off
21210AA300 - : Engine Coolant Thermostat for Subaru Image

Engine Coolant Thermostat

Subaru 21210AA300
Impreza. Engine block. Crosstrek. 2.0L hybrid. Engine Cooling. Incl.Gasket. With hybrid.
$26.10
MSRP $37.50
Save $11.40
30.4% Off
21236AA101 - : Engine Coolant Thermostat Gasket for Subaru Image

Engine Coolant Thermostat Gasket

Subaru 21236AA101
Transmission Cooling. Rear. Legacy, Outback. BRZ. Forester. Impreza. Crosstrek. 2.5L, 2024-25. 2.0L. from 07/13/2022.
$4.35
MSRP $6.25
Save $1.90
30.4% Off
11060AA300 - : Engine Coolant Thermostat Housing for Subaru Image

Engine Coolant Thermostat Housing

Subaru 11060AA300
Engine Cooling. Front. Ascent. Impreza. Crosstrek. WRX. 2.0L hybrid. Forester. With turbo. 2.5L, lower. Engine Coolant Thermostat...
$27.83
MSRP $39.98
Save $12.15
30.4% Off
11060AA360 - : Engine Coolant Thermostat Housing for Subaru Image

Engine Coolant Thermostat Housing

Subaru 11060AA360
Transmission Cooling. Rear. Without hybrid, upper. Forester. 2.0L. Impreza. WRX. Off water pipe. Crosstrek.
$14.56
MSRP $20.92
Save $6.36
30.4% Off
73540FL500 - : HVAC Evaporator Temperature Switch for Subaru Image

HVAC Evaporator Temperature Switch

Subaru 73540FL500
$39.67
MSRP $57.00
Save $17.33
30.4% Off
800606980 - : Pulley Bolt for Subaru Image

Pulley Bolt

Subaru 800606980
2.4L turbo. 2.5L without turbo, 2011-13. 2.5L without turbo, 2013-14. 2.0L hybrid. With hybrid.
$0.42
MSRP $0.72
Save $0.30
41.7% Off
808206040 - : Water Pump Bolt for Subaru Image

Water Pump Bolt

Subaru 808206040
3.6L. 2.0L hybrid. With hybrid. 2.5L, 2024-25.
$1.39
MSRP $2.00
Save $0.61
30.5% Off
73540FL640 - : HVAC Evaporator Temperature Switch for Subaru Image

HVAC Evaporator Temperature Switch

Subaru 73540FL640
With hybrid. Japan Built. Inner parts. Impreza. Forester. Right. 2.5l. Crosstrek. 2.0l. Inner components. evaporator.
$39.67
MSRP $57.00
Save $17.33
30.4% Off
10406250 - : Hose & Tube Assembly Bolt for Subaru Image

Hose & Tube Assembly Bolt

Subaru 010406250
Type 2. 2.5L. With hybrid.
$0.57
MSRP $0.98
Save $0.41
41.8% Off

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Why Choose OEM Thermostats?

OEM Fitment – Exact match for your engine’s cooling system for flawless performance. 

Prevents Failures – Helps avoid overheating and excessive wear caused by unstable temperatures. 

Durable Construction – Built from corrosion-resistant metals and long-life seals. 

Efficient Operation – Maintains ideal operating temperature range for fuel efficiency and engine protection. 

Easy Installation – Direct-fit design for a fast, leak-free replacement.

Compatible Subaru Crosstrek Trims

These OEM thermostats are compatible with:

  • Crosstrek 2.0i

  • Crosstrek 2.0i Premium

  • Crosstrek 2.0i Limited

  • Crosstrek Hybrid

Always confirm with your VIN or OEM part number to ensure correct fitment, especially on Hybrid models with variant cooling systems.

Signs Your 2020 Crosstrek Needs a New Thermostat

🚙 Engine running too hot or too cold 

🚙 Temperature gauge fluctuating or erratic 

🚙 Cabin heater not working properly 

🚙 Coolant leaks near thermostat housing 

🚙 Check engine light triggered by temperature sensor fault

Replacing your thermostat at the first sign of failure helps prevent serious engine damage and ensures stable driving performance.

How to Replace a Thermostat on a 2020 Crosstrek

Tools Needed: 

✔ Socket and ratchet set 

✔ Drain pan 

✔ Gasket scraper or seal remover 

✔ Torque wrench 

✔ Subaru-approved coolant

Installation Steps:

  1. Drain Coolant – Lower coolant level below the thermostat housing.

  2. Remove Thermostat Housing – Unbolt housing and clean mating surfaces.

  3. Install New OEM Thermostat – Position correctly with new gasket/seal.

  4. Reassemble and Refill Coolant – Top off and bleed air from the cooling system.

  5. Start Engine and Monitor Temp – Ensure proper warm-up and no leaks.

Popular Related Parts for 2020 Crosstrek

🔹 2020 Crosstrek Radiator Hoses – Replace cracked or swollen hoses for leak prevention 

🔹 2020 Crosstrek Coolant Temp Sensor – Works alongside thermostat for accurate temperature reading 

🔹 2020 Crosstrek Radiator Cap – Maintains system pressure and prevents boil-over 

🔹 2020 Crosstrek Water Pump – Circulates coolant; inspect during thermostat replacement 

🔹 2020 Crosstrek Engine Coolant – Use Subaru-approved coolant for optimal engine protection

Get Your 2020 Crosstrek Thermostats Today!

Restore stable temperature control and protect your engine with OEM thermostats made for your Subaru Crosstrek. Reliable, efficient, and easy to install—built to perform under any condition.

🛒 Order Now and Maintain Peak Cooling Efficiency

FAQs About 2020 Crosstrek Thermostats

How often should the thermostat be replaced? Typically every 100,000 km or earlier if signs of failure appear.

What happens if a thermostat fails while driving? It may cause overheating, rough idling, poor fuel economy, or heater failure.

Should I replace the gasket or seal when installing a new thermostat? Yes—always use a new gasket or seal to prevent coolant leaks.

Do I need to bleed the cooling system afterward? Yes—air pockets can prevent proper coolant flow and cause overheating.

Why choose OEM over aftermarket thermostats? OEM thermostats provide precise temperature control, factory fitment, and longer service life compared to most aftermarket alternatives.