2003 Subaru Forester Thermostats

Your 2003 Subaru Forester might be the best vehicle you’ve ever owned. Or you may just be struggling to keep it highway-approved. No matter the situation, Advance Auto Parts has the Thermostats you desperately need.

We currently carry 5 Thermostats to choose from for your 2003 Subaru Forester, and our inventory prices range from as little as $11.99 up to $34.49.

On top of low prices, Advance Auto Parts offers 4 different trusted brands of Thermostats for the 2003 Subaru Forester. We only sell parts from trusted brands like Carquest Premium so that you can find quality parts you can count on.

Don’t take our word for it – check out customer ratings and reviews to buy with confidence. We have 100 reviews on our Thermostats for the 2003 Subaru Forester from previous customers.

Have parts delivered straight to your home, or find the nearest Advance Auto Parts store to check out our Thermostats stock in-person!

Thermostats for Your 2003 Subaru Forester

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.
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(20 reviews)
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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
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(27 reviews)
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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..
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(3 reviews)
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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
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AISIN – Thermostat (Part No.G4000928144ASC)

Thermostat

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$33.52
Thermostat
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FAQs for 2003 Subaru Forester Thermostats

What are the most popular Thermostats for the 2003 Subaru Forester?

With 4 brands you can trust, our most popular Thermostats for the 2003 Subaru Forester parts 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 $33.52
This product is not rated
Thermostat
Thermostats

What are the best aftermarket Thermostats for the 2003 Subaru Forester?

See what past customers had to say about our highest-rated Thermostats for the 2003 Subaru Forester:
Thermostat
from $34.49
(3)
Thermostat
“This is a great thermostat. It looks and feels exactly like the one it replaced. The fit in my 1998 Subaru Forester was perfect.”