Kia Optima Thermostat

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We stock Genuine OEM Kia® Thermostat for your Kia Optima. OEM thermostats are designed and manufactured to fit and function perfectly with your specific make and model of vehicle. They are designed to regulate the flow of coolant through your engine, ensuring that your engine operates at the correct temperature range. A malfunctioning thermostat can cause overheating, poor fuel efficiency, and potential engine damage, so replacing it with an OEM part can ensure optimal performance and reliability. Additionally, using an OEM thermostat can help ensure that the part is covered under the manufacturer's warranty. Manufacturer's Warranty Included. Guaranteed Fit. Experts standing by.

Thermostat Unit Mount Bolt

Part Number: 11403-08856K
Kia Kia
Notes: Included with thermostat unit.
Other Names: Thermostat Housing Bolt, Thermostat Unit Bolt, Bolt
Description: 2.4L, outer. 2.0L, outer. Sedan 2010-13, hatchback 2011-13, 2.0L.
Fits:
  • Kia:
    • Forte,
    • Forte Koup,
    • Optima,
    • Sorento
MSRP $1.93
$1.74

Engine Coolant Thermostat Housing Gasket

Part Number: 25641-2GGA0
Kia Kia
Notes: Included with thermostat unit. Included with control assembly.
Applications: 2.0L, 2.4L.
Other Names: Housing Gasket, Thermostat Unit Gasket, Thermostat Housing Gasket, Thermostat Gasket, Gasket Thermostat Ho
Description: Sportage. 2.4l. Sorento. 2.4l.
Fits:
  • Kia:
    • Optima,
    • Sorento,
    • Sportage
MSRP $17.10
$13.34

Thermostat Unit

Part Number: 25600-2G651
Kia Kia
Other Names: Control Assembly Coolant
Fits:
  • Kia:
    • Optima
MSRP $249.90
$170.03

Thermostat Unit

Part Number: 25600-2GGA5
Kia Kia
Other Names: Control Assembly Coolant
Description: 2.4L.
Fits:
  • Kia:
    • Optima
MSRP $298.84
$203.33

OEM NEW 11-16 Kia Sportage Optima Sorento Cover Fitting Coolant Inlet 256302G700

Part Number: 25630-2G700
Kia Kia
Notes: Included with thermostat unit. Included with control assembly.
Applications: 2.0L, 2.4L.
Other Names: Water Inlet, Fitting Coolant Inle
Description: Optima. Sportage. Sorento. 2.4l. 2.0L.
Fits:
  • Kia:
    • Optima,
    • Sorento,
    • Sportage
MSRP $27.44
$21.40

Thermostat Housing

Part Number: 25621-38000
Kia Kia
Notes: Included with housing assembly.
Other Names: Water Inlet, Fitting Coolant Inle
Description: 2.4L.
Fits:
  • Kia:
    • Optima
MSRP $23.40
$18.25

OEM NEW 2011-2013 Kia Control Assembly-Coolant Temperature Thermostat 256002G545

Part Number: 25600-2G545
Kia Kia
Other Names: Control Assembly, Control Assembly Coolant
Replaces: 25600-2G540
Description: 2.0L.
Fits:
  • Kia:
    • Optima,
    • Sportage
MSRP $248.59
$169.14

Thermostat Housing

Part Number: 25620-37351
Kia Kia
Notes: Included with control assembly.
Other Names: Housing Assembly Thermos
Replaces: 25620-37350
Description: 2.7L. 2.5L.
Fits:
  • Kia:
    • Optima,
    • Sportage
MSRP $228.95
$155.78

Thermostat Cover

Part Number: 25630-2G650
Kia Kia
Notes: Included with thermostat unit.
Applications: 2.0L, 2.4L.
Other Names: Water Inlet, Fitting Assembly Coolant
Description: Optima Hybrid. 2.4l.
Fits:
  • Kia:
    • Optima
MSRP $25.70
$20.05

OEM NEW 2011-2016 Kia Sportage Temp Control Assembly Thermostat Unit 25600-2G500

Part Number: 25600-2G500
Kia Kia
Other Names: Control Assembly, Control Assembly Coolant
Description: 2.4L.
Fits:
  • Kia:
    • Optima,
    • Sorento,
    • Sportage
MSRP $178.77
$121.63

Thermostat Housing

Part Number: 25620-2G650
Kia Kia
Notes: Included with thermostat unit.
Other Names: Housing Assembly Thermos
Description: Optima Hybrid.
Fits:
  • Kia:
    • Optima
MSRP $123.07
$84.92

Thermostat Outlet

Part Number: 25630-2G000
Kia Kia
Notes: Included with thermostat unit. Included with housing assembly.
Applications: 2.4L.
Other Names: Water Inlet, Fitting Coolant
Description: Forte. Optima. Sedan 2010-13, hatchback 2011-13, 2.0L. Sedan 2010-13, hatchback 2011-13, 2.4L. Rondo. 2.4l.
Fits:
  • Kia:
    • Forte,
    • Forte Koup,
    • Optima,
    • Rondo
MSRP $27.70
$21.61

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