2018 Subaru Crosstrek Thermostats – Reliable Cooling Control with OEM Fitment

Filter

Category
Brand
Category
Product Type
Category
Brand
Category
Product Type

Thermostats for 2018 Crosstrek – Designed for Efficiency, Built for Durability

Your 2018 Subaru Crosstrek depends on its thermostat to maintain the correct engine operating temperature. If your temperature gauge fluctuates, your engine overheats, or your heater isn't working properly, a faulty thermostat could be the culprit.

OEM thermostats are precision-engineered to Subaru’s specifications, ensuring they open and close at exactly the right temperatures. This protects your engine from overheating, improves fuel efficiency, and ensures your Crosstrek operates at peak performance—whether you’re commuting or tackling rugged roads.

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
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
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
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

No results found for "Thermostats". Here are some helpful search tips:

  • Search by a part name. Example: water pump.
  • Be less specific. Example: brake instead of ceramic brake.
  • Remove information such as make, year or model.
  • Can't find the part you are looking for? Contact us and we'll find it for you!


Why Choose OEM Thermostats?

OEM Fitment – Designed for factory specifications to ensure precise temperature control. 

Prevents Failures – Maintains stable operating temperatures and prevents overheating. 

Durable Construction – Made with high-quality metals and durable rubber seals. 

Efficient Operation – Opens and closes at factory-calibrated temperature thresholds. 

Easy Installation – Direct replacement for a hassle-free fit.

Compatible Subaru Crosstrek Trims

These OEM thermostats fit the following 2018 Crosstrek models:

  • Crosstrek 2.0i

  • Crosstrek 2.0i Premium

  • Crosstrek 2.0i Limited

  • All AWD models

Always verify fitment using your VIN or OEM part number, especially for vehicles with unique engine cooling packages.

Signs Your 2018 Crosstrek Needs a New Thermostat

🚙 Engine overheating or fluctuating temperatures 

🚙 Poor cabin heater performance during cold weather 

🚙 Coolant leaks near thermostat housing 

🚙 Check Engine Light triggered by temperature-related codes 

🚙 Engine running too cold, reducing fuel efficiency

Replacing a faulty thermostat promptly helps prevent major engine damage and ensures optimal performance.

How to Replace a Thermostat on a 2018 Crosstrek

Tools Needed: 

✔ Socket and ratchet set 

✔ Drain pan 

✔ Gasket scraper or seal remover 

✔ Torque wrench 

✔ Subaru-approved engine coolant

Installation Steps:

  1. Drain Coolant – Drain enough coolant to lower the level below the thermostat housing.

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

  3. Remove Old Thermostat – Inspect for corrosion or stuck valve.

  4. Install New OEM Thermostat – Ensure correct orientation and use a new gasket or seal.

  5. Refill Coolant and Bleed System – Remove air pockets for proper operation.

Popular Related Parts for 2018 Crosstrek

🔹 2018 Crosstrek Radiator Hoses – Replace worn hoses during thermostat service 

🔹 2018 Crosstrek Coolant Temperature Sensor – Monitor engine temperatures accurately 

🔹 2018 Crosstrek Radiator Cap – Maintain system pressure and coolant flow 

🔹 2018 Crosstrek Water Pump – Ensure proper coolant circulation 

🔹 2018 Crosstrek Engine Coolant – Always refill with Subaru-approved coolant

Get Your 2018 Crosstrek Thermostats Today!

Prevent engine overheating, improve heater performance, and protect your Crosstrek’s engine with genuine OEM thermostats. Engineered for precision, built for reliability.

🛒 Order Now and Drive with Cooling Confidence

FAQs About 2018 Crosstrek Thermostats

When should I replace my thermostat? Typically every 100,000 km or sooner if symptoms like overheating or poor heat arise.

What happens if I drive with a stuck thermostat? It can cause engine overheating or prolonged cold running—both of which can lead to serious engine damage.

Is bleeding the cooling system necessary after thermostat replacement? Yes—removing air ensures proper coolant circulation and temperature control.

Should I replace the gasket with the thermostat? Absolutely—using a new gasket or seal prevents coolant leaks.

Why choose OEM thermostats over aftermarket options? OEM thermostats guarantee the correct temperature response and a perfect fit, ensuring optimal engine protection.