How to replace a thermostat in a cooling system on Hyundai Sonata?

Before replacing the thermostat, observe the coolant level, drivebelt tension, and temperature gauge. Also, don't drive without a thermostat as it affects emissions and fuel economy. To replace the thermostat, drain the cooling system, undo the thermostat housing cover, and detach the thermostat. Then, install a new gasket, thermostat, and housing.

Genuine Hyundai Sonata Thermostat

Engine Coolant Thermostat

Select Vehicle by Model
Select Vehicle by VIN

Select Vehicle by Model

Make

Model

Year

Select Vehicle by VIN

For the most accurate results, select vehicle by your VIN (Vehicle Identification Number).

18 Thermostats found

View related parts
Hyundai Sonata Thermostat Assembly
Part Number: 25500-2GGA0
$46.39 MSRP: $64.61
You Save: $18.22 (29%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Thermostat
- Warranty: This genuine part is guaranteed by Hyundai's factory warranty.
Fits the following Vehicles:
- 2015-2019 Hyundai Sonata | DOHC - GDI | Sedan - 4Door 5P
View related parts
Hyundai Sonata Thermostat Assembly
Part Number: 25500-23010
$42.92 MSRP: $59.77
You Save: $16.85 (29%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Thermostat
- Manufacturer Note: 82'C
- Replaces: 25500-23001
- Warranty: This genuine part is guaranteed by Hyundai's factory warranty.
Fits the following Vehicles:
- 2007-2014 Hyundai Sonata | DOHC - GDI, DOHC - MPI, DOHC - TCI/GDI | Sedan - 4Door 5P
View related parts
Hyundai Sonata Thermostat Assembly
Part Number: 25500-2B000
$25.55 MSRP: $35.58
You Save: $10.03 (29%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Thermostat
- Replaces: 25500-2B400
- Warranty: This genuine part is guaranteed by Hyundai's factory warranty.
Fits the following Vehicles:
- 2015-2019 Hyundai Sonata | DOHC - TCI/GDI | Sedan - 4Door 5P
View related parts
Hyundai Sonata Thermostat Assembly
Part Number: 25500-37200
$37.44 MSRP: $52.14
You Save: $14.70 (29%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Thermostat
- Warranty: This genuine part is guaranteed by Hyundai's factory warranty.
Fits the following Vehicles:
- 2001-2005 Hyundai Sonata | High Grade, Middle Grade | 4 Door Sedan
View related parts
Hyundai Sonata Thermostat Assembly
Part Number: 25500-25001
$37.44 MSRP: $52.14
You Save: $14.70 (29%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Thermostat
- Warranty: This genuine part is guaranteed by Hyundai's factory warranty.
Fits the following Vehicles:
- 2005-2007 Hyundai Sonata | High Grade, Middle Grade | DOHC - MPI | 4 Door Sedan, Sedan - 4Door 5P
View related parts
Hyundai Sonata Thermostat Assembly
Part Number: 25500-3C100
$35.18 MSRP: $48.99
You Save: $13.81 (29%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Thermostat
- Warranty: This genuine part is guaranteed by Hyundai's factory warranty.
Fits the following Vehicles:
- 2005-2010 Hyundai Sonata | High Grade, Middle Grade | DOHC - MPI | 4 Door Sedan, Sedan - 4Door 5P
View related parts
Hyundai Sonata Thermostat Assembly
Part Number: 25500-26100
$29.19 MSRP: $40.66
You Save: $11.47 (29%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Thermostat
- Warranty: This genuine part is guaranteed by Hyundai's factory warranty.
Fits the following Vehicles:
- 2009-2014 Hyundai Sonata | DOHC - TCI/GDI | Sedan - 4Door 5P
View related parts
Hyundai Sonata Thermostat Assembly
Part Number: 25500-2GTA0
$30.79 MSRP: $42.88
You Save: $12.09 (29%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Thermostat
- Warranty: This genuine part is guaranteed by Hyundai's factory warranty.
Fits the following Vehicles:
- 2015-2019 Hyundai Sonata | DOHC - TCI/GDI | Sedan - 4Door 5P
View related parts
Hyundai Sonata Thermostat Assembly
Part Number: 25500-33060
$22.73 MSRP: $29.37
You Save: $6.64 (23%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Thermostat
- Manufacturer Note: KONGHWA,88'C
- Replaces: 25500-33020, 25500-21220, 25500-11010, 25500-33050, 25500-33040, 25500-21210, 25500-21100
- Warranty: This genuine part is guaranteed by Hyundai's factory warranty.
Fits the following Vehicles:
- 1988-1998 Hyundai Sonata | High Grade, Middle Grade | 4 Door
View related parts
Hyundai Sonata Thermostat Assembly
Part Number: 25500-11010
$22.73 MSRP: $29.37
You Save: $6.64 (23%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Manufacturer Note: 88'C
- Replaced by: 25500-33060
- Warranty: This genuine part is guaranteed by Hyundai's factory warranty.
Fits the following Vehicles:
- 1988-1993 Hyundai Sonata | High Grade, Middle Grade | 4 Door
View related parts
Hyundai Sonata Thermostat Assembly
Part Number: 25500-33020
$22.73 MSRP: $29.37
You Save: $6.64 (23%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Manufacturer Note: 88'C
- Replaced by: 25500-33060
- Warranty: This genuine part is guaranteed by Hyundai's factory warranty.
Fits the following Vehicles:
- 1988-1993 Hyundai Sonata | High Grade, Middle Grade | 4 Door
View related parts
Hyundai Sonata Thermostat Assembly
Part Number: 25500-33040
$22.73 MSRP: $29.37
You Save: $6.64 (23%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Manufacturer Note: 88'C
- Replaced by: 25500-33060
- Warranty: This genuine part is guaranteed by Hyundai's factory warranty.
Fits the following Vehicles:
- 1988-1993 Hyundai Sonata | High Grade, Middle Grade | 4 Door
View related parts
Hyundai Sonata Thermostat Assembly
Part Number: 25500-33050
$22.73 MSRP: $29.37
You Save: $6.64 (23%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Replaced by: 25500-33060
- Warranty: This genuine part is guaranteed by Hyundai's factory warranty.
Fits the following Vehicles:
- 1988-1998 Hyundai Sonata | High Grade, Middle Grade | 4 Door
View related parts
Hyundai Sonata Thermostat Assembly
Part Number: 25500-21210
$22.73 MSRP: $29.37
You Save: $6.64 (23%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Manufacturer Note: 88'C
- Replaced by: 25500-33060
- Warranty: This genuine part is guaranteed by Hyundai's factory warranty.
Fits the following Vehicles:
- 1988-1993 Hyundai Sonata | High Grade, Middle Grade | 4 Door
View related parts
Hyundai Sonata Thermostat Assembly
Part Number: 25500-21220
$22.73 MSRP: $29.37
You Save: $6.64 (23%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Manufacturer Note: 88'C
- Replaced by: 25500-33060
- Warranty: This genuine part is guaranteed by Hyundai's factory warranty.
Fits the following Vehicles:
- 1988-1993 Hyundai Sonata | High Grade, Middle Grade | 4 Door
View related parts
Hyundai Sonata Thermostat Assembly
Part Number: 25500-38001
Product Specifications
- Other Name: Thermostat
- Warranty: This genuine part is guaranteed by Hyundai's factory warranty.
Fits the following Vehicles:
- 1998-2005 Hyundai Sonata | High Grade, Middle Grade | 4 Door, 4 Door Sedan
View related parts
Hyundai Sonata Thermostat Assembly
Part Number: 25500-35531
Product Specifications
- Other Name: Thermostat
- Replaces: 25500-35530
- Warranty: This genuine part is guaranteed by Hyundai's factory warranty.
Fits the following Vehicles:
- 1998-2001 Hyundai Sonata | High Grade, Middle Grade | 4 Door
View related parts
Hyundai Sonata Thermostat Assembly
Part Number: 25500-35530
Product Specifications
- Replaced by: 25500-35531
- Warranty: This genuine part is guaranteed by Hyundai's factory warranty.
Fits the following Vehicles:
- 1998-2001 Hyundai Sonata | High Grade, Middle Grade | 4 Door

Hyundai Sonata Thermostat

A Thermostat of Hyundai Sonata is a significant part of the cooling system; it is usually located close to the radiator. The function of this device is to regulate the temperature of the engine to ensure that it runs at the most efficient temperature. As a negative feedback control system, the thermostat detects and regulates the temperature of the system to a set level thereby maintaining efficiency. Mechanical thermostats applied in Sonata cars include bimetallic strips and wax pellets, as well as pneumatic ones based on application of air-filled control tubes. The above developments in the thermostat have gone a notch higher to enhance comfort and operations in Hyundai Sonata cars.

If you are looking for affordable high-quality OEM Hyundai Sonata Thermostat, then you have come to the prime place. Our website provides a large amount of genuine Hyundai Sonata Thermostat at unbeatable prices. All our parts come backed with the manufacturer's warranty.

Hyundai Sonata Thermostat Parts Questions & Experts Answers

Thermostat Assembly
25500-23010
Q: How to replace a thermostat in a cooling system on Hyundai Sonata?
A:
Before replacing the thermostat, observe the coolant level, drivebelt tension, and temperature gauge. Also, don't drive without a thermostat as it affects emissions and fuel economy. To replace the thermostat, drain the cooling system, undo the thermostat housing cover, and detach the thermostat. Then, install a new gasket, thermostat, and housing.