Four Seasons 86025 Engine Coolant Thermostat Housing - Lower
OE Quality 60-Day Returns
Four Seasons
 Thermostat Housing

Four Seasons 86025 Engine Coolant Thermostat Housing - Lower

Brand Four Seasons 86025
Position Lower
Bolt Hole Center To Bolt Hole Center 3.55
Description Engine Coolant Components
Flange Thickness 0.400
Gasket Or Seal Included Included
Inlet Port Diameter 1.551
Material Plastic
Meets / Exceeds OEM? Yes
Overall Height IN 3.750
Style w/o Thermostat
Thermostat Included? Not Included
Type Thermostat Housing
Product line Thermostat Housing
Fits Hyundai and Kia · 41 vehicles

OE direct replacement. Meets OEM requirements for a straightforward thermostat housing swap.

Plastic construction. Lightweight housing with a gasket or seal included.

Thermostat housing. Engine coolant component built for the cooling system.

Cross-references Focus Auto Parts 86025, Motorad CH5127 and 256202G500 for the same application. See all 8.

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Free returns within 60 days if it doesn't fit when fitment is verified.
Not what you need? See all Engine Coolant Thermostat Housing options

Thermostat Housing for Hyundai and Kia

Four Seasons 86025 is an engine coolant thermostat housing built for select Hyundai and Kia applications. It is a plastic, OE-style replacement housing with the gasket or seal included and no thermostat installed, making it a direct service part for cooling system repairs.

Key Features

  • Plastic thermostat housing for engine coolant service
  • Gasket or seal included for installation
  • Thermostat not included
  • Meets or exceeds OEM requirements
  • Overall height: 3.750 in.
  • Inlet port diameter: 1.551 in.
  • Bolt hole center to bolt hole center: 3.55 in.
  • Flange thickness: 0.400 in.

Product Details

Four Seasons Thermostat Housing line focuses on engine coolant components built to OE-style dimensions and material requirements. Part number 86025 is designed as a thermostat housing only, so it is the correct choice when the housing is cracked, warped, leaking, or no longer sealing properly. This part cross-references Hyundai/Kia OE numbers such as 256202G500 and 256202G670 for the same application. Compatible vehicle coverage includes Hyundai Santa Fe Sport, Hyundai Tucson, Hyundai Sonata, Hyundai Santa Fe, Kia Optima, Kia Sportage, and Kia Sorento in the listed lower or N/A positions. Four Seasons 86025 is a practical replacement for cooling system service on these Hyundai and Kia models.

Common Repair Uses

  • Coolant leaks at the thermostat housing
  • Cracked or heat-damaged plastic housing
  • Warped sealing surface causing seepage
  • Failed housing gasket or seal area
  • Cooling system service on Hyundai and Kia engines

Installation Notes

Verify the inlet port diameter, bolt spacing, flange thickness, and overall height against the original housing before installation. Transfer or install the thermostat separately, since this housing is supplied without a thermostat. Clean the mating surface thoroughly and inspect adjacent coolant hoses and clamps before reassembly. Confirm the correct position listed for your vehicle, including lower applications where specified.

Quality Assurance

This thermostat housing meets or exceeds OEM requirements and is built as an engine coolant component for direct replacement use. Confirm fitment by year, make, model, and position before ordering. Fits 2010-2016 Hyundai and Kia applications listed for Santa Fe, Santa Fe Sport, Tucson, Sonata, Optima, Sportage, and Sorento, including lower-position and N/A listings.

Related reading

This part fits 41 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelLitersCylindersFuel TypePositionNotes
2016HyundaiSanta Fe Sport2.4LL4—LowerThermostat Housing
2016KiaOptima2.4LL4GASN/AThermostat Housing
2016KiaOptima2.4LL4ELECTRIC/GASN/AThermostat Housing
2016KiaOptima2.4LL4—N/AThermostat Housing
2016KiaSportage2.4LL4—LowerThermostat Housing
2015HyundaiSanta Fe Sport2.4LL4—LowerThermostat Housing
2015HyundaiTucson2.4LL4—N/AThermostat Housing
2015KiaOptima2.4LL4—LowerThermostat Housing
2015KiaSorento2.4LL4—LowerThermostat Housing
2015KiaSportage2.4LL4—LowerThermostat Housing
2014HyundaiSanta Fe Sport2.4LL4—LowerThermostat Housing
2014HyundaiSonata2.4LL4—N/AThermostat Housing
2014HyundaiSonata2.4LL4GASN/AThermostat Housing
2014HyundaiSonata2.4LL4ELECTRIC/GASN/AThermostat Housing
2014HyundaiTucson2.4LL4—N/AThermostat Housing
2014KiaOptima2.4LL4—LowerThermostat Housing
2014KiaSorento2.4LL4—LowerThermostat Housing
2014KiaSportage2.4LL4—LowerThermostat Housing
2013HyundaiSanta Fe Sport2.4LL4—LowerThermostat Housing
2013HyundaiSonata2.4LL4—N/AThermostat Housing
2013HyundaiSonata2.4LL4GASN/AThermostat Housing
2013HyundaiSonata2.4LL4ELECTRIC/GASN/AThermostat Housing
2013HyundaiTucson2.4LL4—N/AThermostat Housing
2013KiaOptima2.4LL4—N/AThermostat Housing
2013KiaSorento2.4LL4—LowerThermostat Housing
2013KiaSportage2.4LL4—LowerThermostat Housing
2012HyundaiSanta Fe2.4LL4—LowerThermostat Housing
2012HyundaiSonata2.4LL4GASN/AThermostat Housing
2012HyundaiSonata2.4LL4ELECTRIC/GASN/AThermostat Housing
2012HyundaiTucson2.4LL4—N/AThermostat Housing
2012KiaOptima2.4LL4—N/AThermostat Housing
2012KiaSorento2.4LL4—LowerThermostat Housing
2012KiaSportage2.4LL4—LowerThermostat Housing
2011HyundaiSanta Fe2.4LL4—LowerThermostat Housing
2011HyundaiSonata2.4LL4GASN/AThermostat Housing
2011HyundaiTucson2.4LL4—N/AThermostat Housing
2011KiaOptima2.4LL4—N/AThermostat Housing
2011KiaSorento2.4LL4—LowerThermostat Housing
2011KiaSportage2.4LL4—LowerThermostat Housing
2010HyundaiSanta Fe2.4LL4—LowerThermostat Housing
2010HyundaiTucson———N/AThermostat Housing
Directly replaces or cross-references 8 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
Focus Auto Parts — 86025Motorad — CH5127256202G500256202G67081584560521389025128W98555