2003 Hyundai Sonata Thermostats

Your 2003 Hyundai Sonata 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 9 Thermostats to choose from for your 2003 Hyundai Sonata, and our inventory prices range from as little as $9.29 up to $37.33.

On top of low prices, Advance Auto Parts offers 4 different trusted brands of Thermostats for the 2003 Hyundai Sonata. 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 167 reviews on our Thermostats for the 2003 Hyundai Sonata 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 Hyundai Sonata

Motorad UltraStats – Thermostat: 180 Degrees (Part No.5302-180)

Thermostat: 180 Degrees

from

$27.49
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

Carquest Premium – Standard Thermostat: 180 Degrees (Part No.14128)

Standard Thermostat: 180 Degrees

from

$19.99
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: 170 Degrees (Part No.14337)

Standard Thermostat: 170 Degrees

from

$20.79
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: With Seal, 180 Degrees (Part No.14808)

Standard Thermostat: With Seal, 180 Degrees

from

$20.99
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.48227)

Thermostat

from

$9.29
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

Motorad UltraStats – Thermostat: 170 Degrees (Part No.5302-170)

Thermostat: 170 Degrees

from

$23.99
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

AISIN - Thermostat (Part No.G4000109159ASC)

Thermostat

from

$37.33
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

Carquest Premium - Thermostat (Part No.48268)

Thermostat

from

$23.49
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

Calorstat - CALORSTAT Thermostat (Part No.G4000109158CAL)

CALORSTAT Thermostat

from

$19.30
CALORSTAT thermostatic components (bellows thermostats for water temperature regulation), followed by the use of a different technology based on the wax expansion. CALORSTAT by Vernet has produced thermostatic elements for more than 50 years. A vast amount of experience and continuous development has enabled the Company to remain the world leader in this field. Throughout the world, Vernet is regarded as a valued partner by manufacturers, large and small, in the Sanitary, Heating and Automotive industry.

Product Features:
  • Comfort enhancement by a faster cabine warming
  • CO2 emissions and fuel consumption reduction
  • Thermostat opening driven by the ECU (electrical thermostat)
  • An adaptation of the control strategies to the vehicle use (electrical thermostat)
See More

FAQs for 2003 Hyundai Sonata Thermostats

What are the most popular Thermostats for the 2003 Hyundai Sonata?

With 4 brands you can trust, our most popular Thermostats for the 2003 Hyundai Sonata parts are:
Standard Thermostat: 170 Degrees
from $20.79
(40)
Standard Thermostat: 170 Degrees
Thermostats
Standard Thermostat: 180 Degrees
from $19.99
(29)
Standard Thermostat: 180 Degrees
Thermostats
Thermostat: 170 Degrees
from $23.99
(3)
Thermostat: 170 Degrees
Thermostats

What are the best aftermarket Thermostats for the 2003 Hyundai Sonata?

See what past customers had to say about our highest-rated Thermostats for the 2003 Hyundai Sonata:
Thermostat: 180 Degrees
from $27.49
(1)
Thermostat: 180 Degrees
"Thermostat replacement fit perfect does not come with gasket sold separately great help from workers really informative"