Contact Us Live Chat or 1-888-220-8330
Search Bar
Search by Part Number or Keywords
  • My Garage
  • My Account
  • Cart
  • Body & Mirrors
  • Chassis & Brakes
  • Engine & Drivetrain
  • Electrical & Lighting
Help Center
< Back ×
  • Body & Mirrors
  • Chassis & Brakes
  • Engine & Drivetrain
  • Electrical & Lighting
Login/Register My Account Track Order Help Center Contact Us
Replacement and OEM Parts for Kia Optima Thermostat and Housing Assembly
Select your vehicle for the best product fit
  • Select Vehicle by Model
  • Select Vehicle by VIN
Select Make
Select Model
Select Year
or

Kia Optima Thermostat and Housing Assembly

< Back to View All
Cooling Systems, Fans & Radiators
  • Department
  • Brands
  • Prices

47 Products found

Show Item:
  • 30
  • 60
  • 90
Sort by:
Recommended
Filter
Sort
View by
  • OEM Kia Optima Thermostat Assembly Diagram - 2550037200
    View Related Parts

    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
    View Related Parts

    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%)
  • OEM Kia Optima Thermostat Assembly Diagram - 2550023010
    View Related Parts

    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%)
  • Four Seasons Engine Coolant Water Outlet Housing Kit for Kia Optima - 86230

    Four Seasons® Engine Coolant Water Outlet Housing Kit for Kia Optima

    PartNumber: 86230
    Product Specifications
    • Gasket / Seals: Included
    • Inlet Dia. IN: 1.375
    • Material: Plastic
    • Meets / Exceeds OEM: Yes
    • Mount Hole Qty: 3
    • Style: w/ Thermostat
    • Thermostat Included: Included
    • UPC: 096361098589
    • Part Description: Kia Optima Engine Coolant Water Outlet Housing Kit
    More Info
    $138.45
  • OEM Kia Optima Fitting-COOLANT Inlet Diagram - 256302G700
    View Related Parts

    OEM (Genuine) Kia Optima Fitting-COOLANT Inlet

    PartNumber: 256302G700
    OEM Kia Optima Fitting-COOLANT Inlet - 256302G700
    Product Specifications
    • Other Names: Thermostat Cover, Water Inlet
    • Item Dimensions: 8.2 x 8.2 x 6.2 inches
    • Item Weight: 4.20 Pounds
    • Fitment Type: Direct Replacement
    • Part Description: Kia Optima Fitting-COOLANT Inlet
    More Info
    $19.57 MSRP: $26.12
    You Save: $6.55 (26%)
  • Four Seasons Engine Coolant Water Outlet Housing Kit for Kia Optima - 86245

    Four Seasons® Engine Coolant Water Outlet Housing Kit for Kia Optima

    PartNumber: 86245
    Product Specifications
    • Meets / Exceeds OEM: Yes
    • Style: w/ Thermostat
    • UPC: 096361143890
    • Part Description: Kia Optima Engine Coolant Water Outlet Housing Kit
    More Info
    $75.96
  • OEM Kia Optima Case-Thermostat Diagram - 256202G500
    View Related Parts

    OEM (Genuine) Kia Optima Case-Thermostat

    PartNumber: 256202G500
    OEM Kia Optima Case-Thermostat - 256202G500
    Product Specifications
    • Other Names: Thermostat Housing
    • Item Dimensions: 20.6 x 10.8 x 7.3 inches
    • Item Weight: 0.80 Pounds
    • Fitment Type: Direct Replacement
    • Part Description: Kia Optima Case-Thermostat
    More Info
    $101.79 MSRP: $135.95
    You Save: $34.16 (26%)
  • OEM Kia Optima Control Assembly-COOLANT Diagram - 256002G545
    View Related Parts

    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%)
  • OEM Kia Optima Control Assembly-COOLANT Diagram - 256002GGA5
    View Related Parts

    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 Case-Thermostat Diagram - 256202GGA5
    View Related Parts

    OEM (Genuine) Kia Optima Case-Thermostat

    PartNumber: 256202GGA5
    OEM Kia Optima Case-Thermostat - 256202GGA5
    Product Specifications
    • Other Names: Thermostat Housing
    • Item Dimensions: 17.3 x 11.4 x 11.7 inches
    • Item Weight: 3.20 Pounds
    • Fitment Type: Direct Replacement
    • Part Description: Kia Optima Case-Thermostat
    More Info
    $99.36 MSRP: $132.70
    You Save: $33.34 (26%)
  • OEM Kia Optima Case-Thermostat Diagram - 256202G540
    View Related Parts

    OEM (Genuine) Kia Optima Case-Thermostat

    PartNumber: 256202G540
    OEM Kia Optima Case-Thermostat - 256202G540
    Product Specifications
    • Other Names: Thermostat Housing
    • Item Dimensions: 15.6 x 7.7 x 5.8 inches
    • Item Weight: 2.50 Pounds
    • Fitment Type: Direct Replacement
    • Part Description: Kia Optima Case-Thermostat
    More Info
    $109.29 MSRP: $145.97
    You Save: $36.68 (26%)
  • OEM Kia Optima Control Assembly-COOLANT Diagram - 256002G500
    View Related Parts

    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
    View Related Parts

    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
    View Related Parts

    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
    View Related Parts

    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
    View Related Parts

    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
    View Related Parts

    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 Housing Assembly-Thermostat Diagram - 2562025002
    View Related Parts

    OEM (Genuine) Kia Optima Housing Assembly-Thermostat

    PartNumber: 2562025002
    OEM Kia Optima Housing Assembly-Thermostat - 2562025002
    Product Specifications
    • Other Names: Thermostat Housing
    • Item Dimensions: 17.7 x 11.4 x 11.7 inches
    • Item Weight: 5.60 Pounds
    • Fitment Type: Direct Replacement
    • Part Description: Kia Optima Housing Assembly-Thermostat
    More Info
    $151.58 MSRP: $202.45
    You Save: $50.87 (26%)
  • OEM Kia Optima Case-Thermostat Diagram - 256202G600
    View Related Parts

    OEM (Genuine) Kia Optima Case-Thermostat

    PartNumber: 256202G600
    OEM Kia Optima Case-Thermostat - 256202G600
    Product Specifications
    • Other Names: Thermostat Housing
    • Item Dimensions: 15.8 x 7.4 x 6.2 inches
    • Item Weight: 2.30 Pounds
    • Fitment Type: Direct Replacement
    • Part Description: Kia Optima Case-Thermostat
    More Info
    $102.75 MSRP: $137.23
    You Save: $34.48 (26%)
  • OEM Kia Optima Case-Thermostat Diagram - 256202G545
    View Related Parts

    OEM (Genuine) Kia Optima Case-Thermostat

    PartNumber: 256202G545
    OEM Kia Optima Case-Thermostat - 256202G545
    Product Specifications
    • Other Names: Thermostat Housing
    • Item Dimensions: 17.3 x 11.4 x 11.6 inches
    • Item Weight: 0.80 Pounds
    • Fitment Type: Direct Replacement
    • Part Description: Kia Optima Case-Thermostat
    More Info
    $102.75 MSRP: $137.23
    You Save: $34.48 (26%)
  • OEM Kia Optima Case-Thermostat Diagram - 256202GTA0
    View Related Parts

    OEM (Genuine) Kia Optima Case-Thermostat

    PartNumber: 256202GTA0
    OEM Kia Optima Case-Thermostat - 256202GTA0
    Product Specifications
    • Other Names: Thermostat Housing
    • Item Dimensions: 23.9 x 13.4 x 7.3 inches
    • Item Weight: 3.30 Pounds
    • Fitment Type: Direct Replacement
    • Part Description: Kia Optima Case-Thermostat
    More Info
    $99.36 MSRP: $132.70
    You Save: $33.34 (26%)
  • OEM Kia Optima Fitting-COOLANT Diagram - 256302G000
    View Related Parts

    OEM (Genuine) Kia Optima Fitting-COOLANT

    PartNumber: 256302G000
    OEM Kia Optima Fitting-COOLANT - 256302G000
    Product Specifications
    • Other Names: Thermostat Cover, Water Inlet
    • Item Weight: 0.80 Pounds
    • Fitment Type: Direct Replacement
    • Part Description: Kia Optima Fitting-COOLANT
    More Info
    $19.75 MSRP: $26.37
    You Save: $6.62 (26%)
  • OEM Kia Optima Case-Thermostat Diagram - 256202G670
    View Related Parts

    OEM (Genuine) Kia Optima Case-Thermostat

    PartNumber: 256202G670
    OEM Kia Optima Case-Thermostat - 256202G670
    Product Specifications
    • Item Dimensions: 18.9 x 9.4 x 9.3 inches
    • Item Weight: 3.10 Pounds
    • Fitment Type: Direct Replacement
    • Part Description: Kia Optima Case-Thermostat
    More Info
    $102.75 MSRP: $137.23
    You Save: $34.48 (26%)
  • OEM Kia Optima Control Assembly-COOLANT Diagram - 256002B701
    View Related Parts

    OEM (Genuine) Kia Optima Control Assembly-COOLANT

    PartNumber: 256002B701
    OEM Kia Optima Control Assembly-COOLANT - 256002B701
    Product Specifications
    • Other Names: Thermostat Housing, Water Inlet, Water Inlet Pipe
    • Item Weight: 0.90 Pounds
    • Fitment Type: Direct Replacement
    • Part Description: Kia Optima Control Assembly-COOLANT
    More Info
    $97.77 MSRP: $130.59
    You Save: $32.82 (26%)
  • OEM Kia Optima Fitting-COOLANT Inlet Diagram - 256302GGA0
    View Related Parts

    OEM (Genuine) Kia Optima Fitting-COOLANT Inlet

    PartNumber: 256302GGA0
    OEM Kia Optima Fitting-COOLANT Inlet - 256302GGA0
    Product Specifications
    • Other Names: Thermostat Cover, Thermostat Outlet, Water Inlet
    • Item Weight: 0.80 Pounds
    • Fitment Type: Direct Replacement
    • Part Description: Kia Optima Fitting-COOLANT Inlet
    More Info
    $18.67 MSRP: $24.92
    You Save: $6.25 (26%)
  • OEM Kia Optima Fitting-COOLANT Inlet Diagram - 2563137100
    View Related Parts

    OEM (Genuine) Kia Optima Fitting-COOLANT Inlet

    PartNumber: 2563137100
    OEM Kia Optima Fitting-COOLANT Inlet - 2563137100
    Product Specifications
    • Other Names: Thermostat Cover, Water Inlet
    • Item Weight: 0.80 Pounds
    • Fitment Type: Direct Replacement
    • Part Description: Kia Optima Fitting-COOLANT Inlet
    More Info
    $15.85 MSRP: $21.15
    You Save: $5.30 (26%)
  • OEM Kia Optima Thermostat Assembly Diagram - 2550035540
    View Related Parts

    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 Fitting Assembly-Water Outlet Diagram - 2561135520
    View Related Parts

    OEM (Genuine) Kia Optima Fitting Assembly-Water Outlet

    PartNumber: 2561135520
    OEM Kia Optima Fitting Assembly-Water Outlet - 2561135520
    Product Specifications
    • Other Names: Housing Cover, Outlet Pipe, Water Outlet
    • Item Weight: 0.90 Pounds
    • Fitment Type: Direct Replacement
    • Part Description: Kia Optima Fitting Assembly-Water Outlet
    More Info
    $10.71 MSRP: $14.28
    You Save: $3.57 (25%)
  • OEM Kia Optima Thermostat Assembly Diagram - 2550025001
    View Related Parts

    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%)
1-30 of 47 Results
< Previous
12
Next >

Browse Kia Optima Thermostat and Housing Assembly by Years

2020 2019 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009 2008 2007 2006 2005 2004 2003 2002 2001