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Replacement and OEM Parts for Kia Optima Thermostat
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Kia Optima Thermostat

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  • OEM Kia Optima Thermostat Assembly Diagram - 2550037200
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    OEM (Genuine) Kia Optima Thermostat Assembly

    PartNumber: 2550037200
    OEM Kia Optima Thermostat Assembly - 2550037200
    Product Specifications
    • Other Names: Thermostat
    • Item Dimensions: 2.6 x 2.6 x 2.5 inches
    • Item Weight: 0.40 Pounds
    • Fitment Type: Direct Replacement
    • Part Description: Kia Optima Thermostat Assembly
    More Info
    $19.95 MSRP: $26.63
    You Save: $6.68 (26%)
  • OEM Kia Optima Thermostat Assembly Diagram - 255002B000
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    OEM (Genuine) Kia Optima Thermostat Assembly

    PartNumber: 255002B000
    OEM Kia Optima Thermostat Assembly - 255002B000
    Product Specifications
    • Other Names: Thermostat
    • Item Weight: 0.40 Pounds
    • Fitment Type: Direct Replacement
    • Replaces: 25500-2B400
    • Part Description: Kia Optima Thermostat Assembly
    More Info
    $20.02 MSRP: $26.75
    You Save: $6.73 (26%)
  • Gates OE Type Engine Coolant Thermostat for Kia Optima - 34021

    Gates® OE Type Engine Coolant Thermostat for Kia Optima

    PartNumber: 34021
    Product Specifications
    • By-Pass Flange Diameter: 1.1"
    • Depth from Flange: 1.5"
    • Design: Bottom By-Pass
    • Flange Diameter: 2.13"
    • Height from Flange: 0.64"
    • Includes Installation Tool: No
    • Jiggle Pin/Check Valve: Yes
    • Material: Steel, Copper
    • Number of Gaskets: 0
    • Number of Jiggle Pins/Check Valves: 1
    • Number of Seals: 1
    • Seal Type: O-Ring
    • Temperature (C): 82
    • Temperature (F): 180
    • Total Height: 2.14"
    • Type: OE Exact Thermostat
    • UPC: 770075302834
    • Part Description: Kia Optima OE Type Engine Coolant Thermostat
    More Info
    $30.83
  • OEM Kia Optima Thermostat Assembly Diagram - 2550023010
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    OEM (Genuine) Kia Optima Thermostat Assembly

    PartNumber: 2550023010
    OEM Kia Optima Thermostat Assembly - 2550023010
    Product Specifications
    • Other Names: Thermostat
    • Item Dimensions: 8.2 x 8.2 x 6.1 inches
    • Item Weight: 1.20 Pounds
    • Fitment Type: Direct Replacement
    • Replaces: 25500-23001
    • Part Description: Kia Optima Thermostat Assembly
    More Info
    $22.39 MSRP: $29.92
    You Save: $7.53 (26%)
  • Gates OE Type Engine Coolant Thermostat for Kia Optima - 33877

    Gates® OE Type Engine Coolant Thermostat for Kia Optima

    PartNumber: 33877
    Product Specifications
    • By-Pass Flange Diameter: 1.2"
    • Depth from Flange: 1.71"
    • Design: Bottom By-Pass
    • Flange Diameter: 2.51"
    • Height from Flange: 0.74"
    • Includes Installation Tool: No
    • Jiggle Pin/Check Valve: No
    • Material: Steel, Copper
    • Number of Gaskets: 0
    • Number of Seals: 0
    • OE Comparison Rating: OE Performance
    • Temperature (C): 77
    • Temperature (F): 170
    • Total Height: 2.45"
    • Type: OE Type Thermostat
    • UPC: 072053062830
    • Part Description: Kia Optima OE Type Engine Coolant Thermostat
    More Info
    $21.30
  • OEM Kia Optima Control Assembly-COOLANT Diagram - 256002G545
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    OEM (Genuine) Kia Optima Control Assembly-COOLANT

    PartNumber: 256002G545
    OEM Kia Optima Control Assembly-COOLANT - 256002G545
    Product Specifications
    • Other Names: Thermostat Unit
    • Item Dimensions: 15.5 x 11.4 x 7.1 inches
    • Item Weight: 4.30 Pounds
    • Fitment Type: Direct Replacement
    • Replaces: 25600-2G540
    • Part Description: Kia Optima Control Assembly-COOLANT
    More Info
    $177.26 MSRP: $236.73
    You Save: $59.47 (26%)
  • Gates OE Type Engine Coolant Thermostat for Kia Optima - 33878

    Gates® OE Type Engine Coolant Thermostat for Kia Optima

    PartNumber: 33878
    Product Specifications
    • By-Pass Flange Diameter: 1.2"
    • Depth from Flange: 1.72"
    • Design: Bottom By-Pass
    • Flange Diameter: 2.51"
    • Height from Flange: 0.72"
    • Includes Installation Tool: No
    • Jiggle Pin/Check Valve: No
    • Material: Steel, Copper
    • Number of Gaskets: 0
    • Number of Seals: 0
    • OE Comparison Rating: OE Performance
    • Temperature (C): 82
    • Temperature (F): 180
    • Total Height: 2.45"
    • Type: OE Type Thermostat
    • UPC: 072053062823
    • Part Description: Kia Optima OE Type Engine Coolant Thermostat
    More Info
    $18.81
  • OEM Kia Optima Control Assembly-COOLANT Diagram - 256002GGA5
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    OEM (Genuine) Kia Optima Control Assembly-COOLANT

    PartNumber: 256002GGA5
    OEM Kia Optima Control Assembly-COOLANT - 256002GGA5
    Product Specifications
    • Item Weight: 0.90 Pounds
    • Fitment Type: Direct Replacement
    • Part Description: Kia Optima Control Assembly-COOLANT
    More Info
    $202.11 MSRP: $271.67
    You Save: $69.56 (26%)
  • OEM Kia Optima Control Assembly-COOLANT Diagram - 256002G500
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    OEM (Genuine) Kia Optima Control Assembly-COOLANT

    PartNumber: 256002G500
    OEM Kia Optima Control Assembly-COOLANT - 256002G500
    Product Specifications
    • Other Names: Thermostat Unit
    • Item Dimensions: 16.5 x 8.3 x 6.4 inches
    • Item Weight: 0.80 Pounds
    • Fitment Type: Direct Replacement
    • Part Description: Kia Optima Control Assembly-COOLANT
    More Info
    $127.47 MSRP: $170.25
    You Save: $42.78 (26%)
  • OEM Kia Optima Control Assembly-COOLANT Diagram - 256002G651
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    OEM (Genuine) Kia Optima Control Assembly-COOLANT

    PartNumber: 256002G651
    OEM Kia Optima Control Assembly-COOLANT - 256002G651
    Product Specifications
    • Item Weight: 0.90 Pounds
    • Fitment Type: Direct Replacement
    • Part Description: Kia Optima Control Assembly-COOLANT
    More Info
    $178.20 MSRP: $238.00
    You Save: $59.80 (26%)
  • OEM Kia Optima Control Assembly-COOLANT Diagram - 256002G560
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    OEM (Genuine) Kia Optima Control Assembly-COOLANT

    PartNumber: 256002G560
    OEM Kia Optima Control Assembly-COOLANT - 256002G560
    Product Specifications
    • Other Names: Thermostat Unit
    • Item Dimensions: 16.8 x 11.3 x 11.6 inches
    • Item Weight: 4.30 Pounds
    • Fitment Type: Direct Replacement
    • Part Description: Kia Optima Control Assembly-COOLANT
    More Info
    $211.72 MSRP: $284.58
    You Save: $72.86 (26%)
  • OEM Kia Optima Control Assembly-COOLANT Diagram - 256002G600
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    OEM (Genuine) Kia Optima Control Assembly-COOLANT

    PartNumber: 256002G600
    OEM Kia Optima Control Assembly-COOLANT - 256002G600
    Product Specifications
    • Other Names: Thermostat Housing, Thermostat Unit
    • Item Dimensions: 15.5 x 12.2 x 12.7 inches
    • Item Weight: 4.90 Pounds
    • Fitment Type: Direct Replacement
    • Part Description: Kia Optima Control Assembly-COOLANT
    More Info
    $178.97 MSRP: $239.02
    You Save: $60.05 (26%)
  • OEM Kia Optima Control Assembly-COOLANT Diagram - 256002GTA0
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    OEM (Genuine) Kia Optima Control Assembly-COOLANT

    PartNumber: 256002GTA0
    OEM Kia Optima Control Assembly-COOLANT - 256002GTA0
    Product Specifications
    • Other Names: Thermostat Housing, Thermostat Unit, Water Inlet
    • Item Weight: 0.80 Pounds
    • Fitment Type: Direct Replacement
    • Part Description: Kia Optima Control Assembly-COOLANT
    More Info
    $179.78 MSRP: $240.10
    You Save: $60.32 (26%)
  • OEM Kia Optima Control Assembly-COOLANT Diagram - 256002G670
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    OEM (Genuine) Kia Optima Control Assembly-COOLANT

    PartNumber: 256002G670
    OEM Kia Optima Control Assembly-COOLANT - 256002G670
    Product Specifications
    • Other Names: Thermostat Unit
    • Item Dimensions: 13.4 x 8.4 x 7.4 inches
    • Item Weight: 3.10 Pounds
    • Fitment Type: Direct Replacement
    • Part Description: Kia Optima Control Assembly-COOLANT
    More Info
    $178.97 MSRP: $239.02
    You Save: $60.05 (26%)
  • OEM Kia Optima Thermostat Assembly Diagram - 2550035540
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    OEM (Genuine) Kia Optima Thermostat Assembly

    PartNumber: 2550035540
    OEM Kia Optima Thermostat Assembly - 2550035540
    Product Specifications
    • Other Names: Thermostat
    • Item Dimensions: 6.1 x 6.1 x 4.2 inches
    • Item Weight: 1.20 Pounds
    • Fitment Type: Direct Replacement
    • Part Description: Kia Optima Thermostat Assembly
    More Info
    $19.95 MSRP: $26.63
    You Save: $6.68 (26%)
  • OEM Kia Optima THERMISTOR Assembly-A/C Diagram - 976143X000
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    OEM (Genuine) Kia Optima THERMISTOR Assembly-A/C

    PartNumber: 976143X000
    OEM Kia Optima THERMISTOR Assembly-A/C - 976143X000
    Product Specifications
    • Other Names: Thermister Probe, Thermistor, Thermostatic Switch
    • Item Dimensions: 7.9 x 6.2 x 4.1 inches
    • Item Weight: 2.10 Pounds
    • Fitment Type: Direct Replacement
    • Part Description: Kia Optima THERMISTOR Assembly-A/C
    More Info
    $40.61 MSRP: $54.60
    You Save: $13.99 (26%)
  • OEM Kia Optima Thermostat Assembly Diagram - 2550025001
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    OEM (Genuine) Kia Optima Thermostat Assembly

    PartNumber: 2550025001
    OEM Kia Optima Thermostat Assembly - 2550025001
    Product Specifications
    • Other Names: Thermostat
    • Item Dimensions: 8.3 x 8.2 x 8.4 inches
    • Item Weight: 0.40 Pounds
    • Fitment Type: Direct Replacement
    • Part Description: Kia Optima Thermostat Assembly
    More Info
    $19.95 MSRP: $26.63
    You Save: $6.68 (26%)
  • OEM Kia Optima Thermostat Assembly Diagram - 255002GTA0
    View Related Parts

    OEM (Genuine) Kia Optima Thermostat Assembly

    PartNumber: 255002GTA0
    OEM Kia Optima Thermostat Assembly - 255002GTA0
    Product Specifications
    • Other Names: Thermostat
    • Item Weight: 0.40 Pounds
    • Fitment Type: Direct Replacement
    • Part Description: Kia Optima Thermostat Assembly
    More Info
    $19.85 MSRP: $26.50
    You Save: $6.65 (26%)
  • OEM Kia Optima Thermostat Assembly Diagram - 2550026100
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    OEM (Genuine) Kia Optima Thermostat Assembly

    PartNumber: 2550026100
    OEM Kia Optima Thermostat Assembly - 2550026100
    Product Specifications
    • Other Names: Thermostat
    • Item Weight: 0.40 Pounds
    • Fitment Type: Direct Replacement
    • Part Description: Kia Optima Thermostat Assembly
    More Info
    $19.85 MSRP: $26.50
    You Save: $6.65 (26%)
  • OEM Kia Optima THERMISTOR Assembly-A/C Diagram - 976143S100
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    OEM (Genuine) Kia Optima THERMISTOR Assembly-A/C

    PartNumber: 976143S100
    OEM Kia Optima THERMISTOR Assembly-A/C - 976143S100
    Product Specifications
    • Other Names: Thermister Probe, Thermistor
    • Item Dimensions: 7.4 x 6.2 x 1.1 inches
    • Item Weight: 0.50 Pounds
    • Fitment Type: Direct Replacement
    • Part Description: Kia Optima THERMISTOR Assembly-A/C
    More Info
    $22.87 MSRP: $30.55
    You Save: $7.68 (26%)
  • OEM Kia Optima Thermostat Assembly Diagram - 255002E272
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    OEM (Genuine) Kia Optima Thermostat Assembly

    PartNumber: 255002E272
    OEM Kia Optima Thermostat Assembly - 255002E272
    Product Specifications
    • Other Names: Thermostat
    • Item Weight: 0.40 Pounds
    • Fitment Type: Direct Replacement
    • Part Description: Kia Optima Thermostat Assembly
    More Info
    $19.85 MSRP: $26.50
    You Save: $6.65 (26%)
  • OEM Kia Optima Thermostat Assembly Diagram - 255002G670
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    OEM (Genuine) Kia Optima Thermostat Assembly

    PartNumber: 255002G670
    OEM Kia Optima Thermostat Assembly - 255002G670
    Product Specifications
    • Item Weight: 0.40 Pounds
    • Fitment Type: Direct Replacement
    • Part Description: Kia Optima Thermostat Assembly
    More Info
    $19.85 MSRP: $26.50
    You Save: $6.65 (26%)
  • OEM Kia Optima Thermostat Assembly Diagram - 2550038001
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    OEM (Genuine) Kia Optima Thermostat Assembly

    PartNumber: 2550038001
    OEM Kia Optima Thermostat Assembly - 2550038001
    Product Specifications
    • Other Names: Thermostat
    • Item Dimensions: 2.3 x 0.5 x 1.9 inches
    • Item Weight: 0.50 Pounds
    • Fitment Type: Direct Replacement
    • Part Description: Kia Optima Thermostat Assembly
    More Info
    $19.85 MSRP: $26.50
    You Save: $6.65 (26%)
  • STANT OE Type Engine Coolant Thermostat for Kia Optima - 14128

    STANT® OE Type Engine Coolant Thermostat for Kia Optima

    PartNumber: 14128
    Product Specifications
    • Bypass Plate Diameter: 1.2"
    • Flange Diameter (Without Seal): 2.52"
    • Height from Flange to Bottom: 1.7"
    • Height from Flange to Top of Bridge: 0.7"
    • OE Part Number: MD350415, MD194988, 1305A191, MD174233, 2550037200, 2550035531, 2550035540, 2550035500, 550035531, 2550035331, 2550035530, 21200AD201, 21200AD200, 21200BN30A, 212001LA1A, 212001LA0A, 21200BN301, 9091603100, 9061613094, 9091603094, 9091603117, 9091603138,
    • Temperature (F): 180 Degrees
    • UPC: 033342054813
    • Part Description: Kia Optima OE Type Engine Coolant Thermostat
    More Info
    $9.01
  • STANT OE Type Engine Coolant Thermostat for Kia Optima - 14808

    STANT® OE Type Engine Coolant Thermostat for Kia Optima

    PartNumber: 14808
    Product Specifications
    • Bypass Plate Diameter: 1.1"
    • Flange Diameter (With Seal): 2.29"
    • Flange Diameter (Without Seal): 2.29"
    • Height from Flange to Bottom: 1.95"
    • Height from Flange to Top of Bridge: 0.66"
    • OE Part Number: 2550038001
    • Temperature (F): 180 Degrees
    • UPC: 033342043114
    • Part Description: Kia Optima OE Type Engine Coolant Thermostat
    More Info
    $11.72
  • OEM Kia Optima Thermostat Assembly Diagram - 255002GGA0
    View Related Parts

    OEM (Genuine) Kia Optima Thermostat Assembly

    PartNumber: 255002GGA0
    OEM Kia Optima Thermostat Assembly - 255002GGA0
    Product Specifications
    • Other Names: Thermostat
    • Item Dimensions: 9.4 x 7.7 x 6.1 inches
    • Item Weight: 0.80 Pounds
    • Fitment Type: Direct Replacement
    • Part Description: Kia Optima Thermostat Assembly
    More Info
    $21.48 MSRP: $28.70
    You Save: $7.22 (26%)
  • Gates OE Type Engine Coolant Thermostat for Kia Optima - 33954

    Gates® OE Type Engine Coolant Thermostat for Kia Optima

    PartNumber: 33954
    Product Specifications
    • By-Pass Flange Diameter: 1.12"
    • Depth from Flange: 1.79"
    • Design: Bottom By-Pass
    • Flange Diameter: 2.12"
    • Height from Flange: 0.66"
    • Includes Installation Tool: No
    • Jiggle Pin/Check Valve: Yes
    • Material: Steel, Brass, Copper
    • Number of Gaskets: 0
    • Number of Jiggle Pins/Check Valves: 1
    • Number of Seals: 1
    • OE Comparison Rating: OE Performance
    • Seal Type: O-Ring
    • Temperature (C): 82
    • Temperature (F): 180
    • Total Height: 2.42"
    • Type: OE Type Thermostat
    • UPC: 072053879872
    • Part Description: Kia Optima OE Type Engine Coolant Thermostat
    More Info
  • AISIN OE Engine Coolant Thermostat for Kia Optima - THK-007

    AISIN® OE Engine Coolant Thermostat for Kia Optima

    PartNumber: THK-007
    Product Specifications
    • UPC: 030915585446
    • Part Description: Kia Optima OE Engine Coolant Thermostat
  • STANT OE Type Engine Coolant Thermostat for Kia Optima - 13778

    STANT® OE Type Engine Coolant Thermostat for Kia Optima

    PartNumber: 13778
    Product Specifications
    • Bypass Plate Diameter: 1.09"
    • Flange Diameter (Without Seal): 2.125"
    • Height from Flange to Bottom: 1.36"
    • Height from Flange to Top of Bridge: 0.78"
    • OE Part Number: 942149620, 1767082Z10
    • Temperature (F): 180 Degrees
    • UPC: 033342037786
    • Part Description: Kia Optima OE Type Engine Coolant Thermostat
    More Info
  • AISIN OE Engine Coolant Thermostat for Kia Optima - THK-009

    AISIN® OE Engine Coolant Thermostat for Kia Optima

    PartNumber: THK-009
    Product Specifications
    • UPC: 030915585460
    • Part Description: Kia Optima OE Engine Coolant Thermostat
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