Subaru WRX STI Thermostats

Your Subaru WRX STI will be happy to know that the search for the right Thermostats you’ve been looking for is over! Advance Auto Parts has 5 different Thermostats for your vehicle, ready for shipping or in-store pick up. The best part is, our Subaru WRX STI Thermostats start from as little as $11.99.

When it comes to your Subaru WRX STI, you want parts and products from only trusted brands. Here at Advance Auto Parts, we work with only top reliable Thermostats brands so you can shop with complete confidence. Some of our top Thermostats brands are Carquest Premium and Motorad UltraStats. We’re sure you will get the right product to keep that WRX STI running for a long time.

We even have reviews of our OEM and aftermarket Thermostats products to help you buy with confidence. Hear from other customers via the 761 reviews on parts for your Subaru WRX STI.

Shop online, find the best price on the right product, and have it shipped right to your door. If you prefer to shop in person for the right Thermostats for your WRX STI, visit one of our local Advance Auto Parts locations and you’ll be back on the road in no time!

Compare 25 Subaru Thermostats

Motorad UltraStats – Thermostat: 195 Degrees (Part No.5203-195)

Thermostat: 195 Degrees

from

$12.99
This premium upgraded thermostat is everything you were looking for. UltraStat Thermostats are the toughest thermostats on the market. All heavy gauge stainless steel construction provides long-life durability, as well as complete corrosion resistance. Exclusive BLVT Valve technology minimizes thermal shock to cooling system components. This is the perfect upgrade to help insure your cooling system is working exactly as you need and expect it to for longevity.

Product Features:
  • Heavy gauge stainless steel components offer increased reliability and long-lasting durability
  • Exclusive BLVT Valve Technology minimizes thermal shock to cooling system components
  • Stainless steel thermal element for unmatched corrosion resistance and revolutionary REAX wax mixture provides quicker reaction time
  • AccuSpring Design for stable temperature control and increased cabin comfort
See More

Carquest Premium – Standard Thermostat: 180 Degrees (Part No.13858)

Standard Thermostat: 180 Degrees

from

$9.49
Carquest Premium Thermostats are manufactured with OEM quality materials and safety standards by an OE Supplier. This thermostat will meet and exceed the expectations of the OE thermostat to insure the best product for your cooling system. Stands up to even the most demanding automotive cooling systems. Manufactured with OEM specifications and processes. Copper case and wax compound assures rapid response to temperature changes in the coolant. Offset design, air relief valve, and OEM style seals included where applicable.

Product Features:
  • High grade stainless steel and copper construction
  • Meets or exceeds OEM standards
  • Consistent and precise response to cooling system needs
  • Original equipment design for worry-free direct fit replacement
  • 100% tested and calibrated
See More

Motorad UltraStats – Thermostat: 180 Degrees (Part No.5203-180)

Thermostat: 180 Degrees

from

$12.49
This premium upgraded thermostat is everything you were looking for. UltraStat Thermostats are the toughest thermostats on the market. All heavy gauge stainless steel construction provides long-life durability, as well as complete corrosion resistance. Exclusive BLVT Valve technology minimizes thermal shock to cooling system components. This is the perfect upgrade to help insure your cooling system is working exactly as you need and expect it to for longevity.

Product Features:
  • Heavy gauge stainless steel components offer increased reliability and long-lasting durability
  • Exclusive BLVT Valve Technology minimizes thermal shock to cooling system components
  • Stainless steel thermal element for unmatched corrosion resistance and revolutionary REAX wax mixture provides quicker reaction time
  • AccuSpring Design for stable temperature control and increased cabin comfort
See More

Motorad – Standard Thermostat: With Seal, 189 Degrees (Part No.762-192)

Standard Thermostat: With Seal, 189 Degrees

from

$24.99
Manufactured with OEM quality materials and safety standards by an OE Supplier. This thermostat will meet and exceed the expectations of the OE thermostat to insure the best product for your cooling system. Stands up to even the most demanding automotive cooling systems. Manufactured with OEM specifications and processes. Copper case and wax compound assures rapid response to temperature changes in the coolant. Offset design, air relief valve, and OEM style seals included where applicable.

Product Features:
  • High grade stainless steel and copper construction
  • Meets or exceeds OEM standards
  • Consistent and precise response to cooling system needs
  • Original equipment design for worry-free direct fit replacement
  • 100% tested and calibrated
See More

NTC – Thermostat (Part No.G400018259NTC)

Thermostat

from

$9.21
NTC offers a full line of thermostats to replace your original equipment thermostat. This includes a wide variety of temperature ranges all designed to operate within OEM specifications.

Product Features:
  • Strict quality control, and functional testing
  • Self-cleaning and self-aligning thermostat valve
  • Original equipment design provides exact fit and performance
  • Precise sealing edges reduce leakage and premature cooling
  • Temperature sensitive heat motor provides consistent valve response for smooth performance and precise engine cooling
  • Stainless steel assembly and springs are engineered for long life
See More

Carquest Premium – Standard Thermostat: 195 Degrees (Part No.13849)

Standard Thermostat: 195 Degrees

from

$9.99
Carquest Premium Thermostats are manufactured with OEM quality materials and safety standards by an OE Supplier. This thermostat will meet and exceed the expectations of the OE thermostat to insure the best product for your cooling system. Stands up to even the most demanding automotive cooling systems. Manufactured with OEM specifications and processes. Copper case and wax compound assures rapid response to temperature changes in the coolant. Offset design, air relief valve, and OEM style seals included where applicable.

Product Features:
  • High grade stainless steel and copper construction
  • Meets or exceeds OEM standards
  • Consistent and precise response to cooling system needs
  • Original equipment design for worry-free direct fit replacement
  • 100% tested and calibrated
See More

Carquest Premium – Standard Thermostat:180 Degrees (Part No.13848)

Standard Thermostat:180 Degrees

from

$9.99
Carquest Premium Thermostats are manufactured with OEM quality materials and safety standards by an OE Supplier. This thermostat will meet and exceed the expectations of the OE thermostat to insure the best product for your cooling system. Stands up to even the most demanding automotive cooling systems. Manufactured with OEM specifications and processes. Copper case and wax compound assures rapid response to temperature changes in the coolant. Offset design, air relief valve, and OEM style seals included where applicable.

Product Features:
  • High grade stainless steel and copper construction
  • Meets or exceeds OEM standards
  • Consistent and precise response to cooling system needs
  • Original equipment design for worry-free direct fit replacement
  • 100% tested and calibrated
See More

Carquest Premium – Standard Thermostat: 192 Degrees (Part No.13859)

Standard Thermostat: 192 Degrees

from

$9.99
Carquest Premium Thermostats are manufactured with OEM quality materials and safety standards by an OE Supplier. This thermostat will meet and exceed the expectations of the OE thermostat to insure the best product for your cooling system. Stands up to even the most demanding automotive cooling systems. Manufactured with OEM specifications and processes. Copper case and wax compound assures rapid response to temperature changes in the coolant. Offset design, air relief valve, and OEM style seals included where applicable.

Product Features:
  • High grade stainless steel and copper construction
  • Meets or exceeds OEM standards
  • Consistent and precise response to cooling system needs
  • Original equipment design for worry-free direct fit replacement
  • 100% tested and calibrated
See More

Carquest Premium – Thermostat (Part No.48457)

Thermostat

from

$11.99
Original equipment design provides exact fit and performance.

Product Features:
  • Precise fitting sealing edges prevent leakage and premature cooling.
  • Self-cleaning and self-aligning thermostat valve.
  • Stainless steel assembly and springs are engineered for long life and smooth performance.
See More

Carquest Premium – Standard Thermostat: 170 Degrees (Part No.14147)

Standard Thermostat: 170 Degrees

from

$12.49
Carquest Premium Thermostats are manufactured with OEM quality materials and safety standards by an OE Supplier. This thermostat will meet and exceed the expectations of the OE thermostat to insure the best product for your cooling system. Stands up to even the most demanding automotive cooling systems. Manufactured with OEM specifications and processes. Copper case and wax compound assures rapid response to temperature changes in the coolant. Offset design, air relief valve, and OEM style seals included where applicable.

Product Features:
  • High grade stainless steel and copper construction
  • Meets or exceeds OEM standards
  • Consistent and precise response to cooling system needs
  • Original equipment design for worry-free direct fit replacement
  • 100% tested and calibrated
See More

Beck/Arnley – Thermostat (Part No.143-0710)

Thermostat

from

$34.49
Temperature-controlled valve located in the hot leg between the engine and radiator. Often mounted on the cylinder head. Controls the flow of coolant through the radiator and regulates heat dissipation. The thermostat allows the engine to reach its operating temperature as quickly as possible to reduce oil dilution, cylinder bore wear, fuel consumption, exhaust emissions and improve the efficiency of the heating system. Self-cleaning design. Includes a long stroke for maximum cooling performance..
See More

Motorad UltraStats – Thermostat: 170 Degrees (Part No.5294-170)

Thermostat: 170 Degrees

from

$19.29
This premium upgraded thermostat is everything you were looking for. UltraStat Thermostats are the toughest thermostats on the market. All heavy gauge stainless steel construction provides long-life durability, as well as complete corrosion resistance. Exclusive BLVT Valve technology minimizes thermal shock to cooling system components. This is the perfect upgrade to help insure your cooling system is working exactly as you need and expect it to for longevity.

Product Features:
  • Heavy gauge stainless steel components offer increased reliability and long-lasting durability
  • Exclusive BLVT Valve Technology minimizes thermal shock to cooling system components
  • Stainless steel thermal element for unmatched corrosion resistance and revolutionary REAX wax mixture provides quicker reaction time
  • AccuSpring Design for stable temperature control and increased cabin comfort
See More

Motorad – Standard Thermostat: With Seal, 189 Degrees (Part No.762-189)

Standard Thermostat: With Seal, 189 Degrees

from

$24.99
Manufactured with OEM quality materials and safety standards by an OE Supplier. This thermostat will meet and exceed the expectations of the OE thermostat to insure the best product for your cooling system. Stands up to even the most demanding automotive cooling systems. Manufactured with OEM specifications and processes. Copper case and wax compound assures rapid response to temperature changes in the coolant. Offset design, air relief valve, and OEM style seals included where applicable.

Product Features:
  • High grade stainless steel and copper construction
  • Meets or exceeds OEM standards
  • Consistent and precise response to cooling system needs
  • Original equipment design for worry-free direct fit replacement
  • 100% tested and calibrated
See More

Motorad – Standard Thermostat: With Seal, 194 Degrees (Part No.762-194)

Standard Thermostat: With Seal, 194 Degrees

from

$24.99
Manufactured with OEM quality materials and safety standards by an OE Supplier. This thermostat will meet and exceed the expectations of the OE thermostat to insure the best product for your cooling system. Stands up to even the most demanding automotive cooling systems. Manufactured with OEM specifications and processes. Copper case and wax compound assures rapid response to temperature changes in the coolant. Offset design, air relief valve, and OEM style seals included where applicable.

Product Features:
  • High grade stainless steel and copper construction
  • Meets or exceeds OEM standards
  • Consistent and precise response to cooling system needs
  • Original equipment design for worry-free direct fit replacement
  • 100% tested and calibrated
See More

Motorad – Standard Thermostat: 190 Degrees (Part No.294-192)

Standard Thermostat: 190 Degrees

from

$14.29
Manufactured with OEM quality materials and safety standards by an OE Supplier. This thermostat will meet and exceed the expectations of the OE thermostat to insure the best product for your cooling system. Stands up to even the most demanding automotive cooling systems. Manufactured with OEM specifications and processes. Copper case and wax compound assures rapid response to temperature changes in the coolant. Offset design, air relief valve, and OEM style seals included where applicable.

Product Features:
  • High grade stainless steel and copper construction
  • Meets or exceeds OEM standards
  • Consistent and precise response to cooling system needs
  • Original equipment design for worry-free direct fit replacement
  • 100% tested and calibrated
See More

AISIN – Thermostat (Part No.G4000458581ASC)

Thermostat

from

$37.55
Thermostats from AISIN are OE manufactured for exact Form, Fit and Function. They contribute to maintaining cooling system performance and are a critical aspect of the cooling system. Thermostats also keep the coolant within the optimal temperature range.

Product Features:
  • OE manufactured for exact Form, Fit and Function
  • Contributes to maintaining cooling system performance
  • Critical aspect of the cooling system
  • Keeps the coolant within the optimal temperature range
See More

AISIN – Thermostat (Part No.G4000928145ASC)

Thermostat

from

$33.73
Thermostats from AISIN are OE manufactured for exact Form, Fit and Function. They contribute to maintaining cooling system performance and are a critical aspect of the cooling system. Thermostats also keep the coolant within the optimal temperature range.

Product Features:
  • OE manufactured for exact Form, Fit and Function
  • Contributes to maintaining cooling system performance
  • Critical aspect of the cooling system
  • Keeps the coolant within the optimal temperature range
See More

NTC – NTC Thermostat (Part No.G4000382860NTC)

NTC Thermostat

from

$29.52
NTC offers a full line of thermostats to replace your original equipment thermostat. This includes a wide variety of temperature ranges all designed to operate within OEM specifications.

Product Features:
  • Strict quality control, and functional testing
  • Self-cleaning and self-aligning thermostat valve
  • Original equipment design provides exact fit and performance
  • Precise sealing edges reduce leakage and premature cooling
  • Temperature sensitive heat motor provides consistent valve response for smooth performance and precise engine cooling
  • Stainless steel assembly and springs are engineered for long life
See More

Motorad – Standard Thermostat: 180 Degrees (Part No.294-180)

Standard Thermostat: 180 Degrees

from

$9.29
Manufactured with OEM quality materials and safety standards by an OE Supplier. This thermostat will meet and exceed the expectations of the OE thermostat to insure the best product for your cooling system. Stands up to even the most demanding automotive cooling systems. Manufactured with OEM specifications and processes. Copper case and wax compound assures rapid response to temperature changes in the coolant. Offset design, air relief valve, and OEM style seals included where applicable.

Product Features:
  • High grade stainless steel and copper construction
  • Meets or exceeds OEM standards
  • Consistent and precise response to cooling system needs
  • Original equipment design for worry-free direct fit replacement
  • 100% tested and calibrated
See More

Carquest Premium – Standard Thermostat: With Seal, 190 Degrees (Part No.1061-190)

Standard Thermostat: With Seal, 190 Degrees

from

$53.99
Carquest Premium Thermostats are manufactured with OEM quality materials and safety standards by an OE Supplier. This thermostat will meet and exceed the expectations of the OE thermostat to insure the best product for your cooling system. Stands up to even the most demanding automotive cooling systems. Manufactured with OEM specifications and processes. Copper case and wax compound assures rapid response to temperature changes in the coolant. Offset design, air relief valve, and OEM style seals included where applicable.

Product Features:
  • High grade stainless steel and copper construction
  • Meets or exceeds OEM standards
  • Consistent and precise response to cooling system needs
  • Original equipment design for worry-free direct fit replacement
  • 100% tested and calibrated
See More

AISIN – Thermostat (Part No.G4000928144ASC)

Thermostat

from

$33.52
Thermostat

AISIN – Thermostat (Part No.G4000382862ASC)

Thermostat

from

$29.98
Thermostats from AISIN are OE manufactured for exact Form, Fit and Function. They contribute to maintaining cooling system performance and are a critical aspect of the cooling system. Thermostats also keep the coolant within the optimal temperature range.

Product Features:
  • OE manufactured for exact Form, Fit and Function
  • Contributes to maintaining cooling system performance
  • Critical aspect of the cooling system
  • Keeps the coolant within the optimal temperature range
See More

Autopart International Inc – Thermostat (Part No.G40002022732API)

Thermostat

from

$28.52
Thermostat

Autopart International Inc – Thermostat (Part No.G40001972617API)

Thermostat

from

$17.20
Thermostat

Autopart International Inc – Thermostat (Part No.G40002001326API)

Thermostat

from

$16.15
Thermostat

FAQs for Subaru WRX STI Thermostats

What are the most popular Thermostats for the Subaru WRX STI?

With 4 brands you can trust, our most popular Thermostats for the Subaru WRX STI are:
Standard Thermostat: 170 Degrees
from $12.49
(27)
Standard Thermostat: 170 Degrees
Thermostats
Thermostat: 170 Degrees
from $19.29
This product is not rated
Thermostat: 170 Degrees
Thermostats
Thermostat
from $34.49
(3)
Thermostat
Thermostats