HomeBelts and Cooling > Thermostat and HousingDorman 902-5128 Engine Coolant Thermostat Housing
Part #: 902-5128

Dorman 902-5128 Engine Coolant Thermostat Housing

⚙️ 30 vehicles fit this part
🔍
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
$110.83Free Shipping
🚚Free ShippingNo Cost to Continental U.S.
🔄Free Returns*Wrong fit? No cost
🛡️60-Day ReturnsMoney back guarantee
*Free return shipping only qualifies if our fitment verification tool is used.
🔥
✅ In Stock · Ready To Ship Most orders ship same-day if ordered before 1pm CST.
OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: Hyundai and Kia, Optima, Santa Fe, Santa Fe Sport, Sonata, Sorento, Sportage, and Tucson
🔄Easy Returns — Return within 60 days for a full refund
🚚Fast Shipping — Most orders ship same business day before 1pm CST

Overview of Dorman Engine Coolant Thermostat Housing 902-5128

The Dorman 902-5128 engine coolant thermostat housing is designed for reliable cooling system performance in select Hyundai and Kia vehicles. Constructed from durable black plastic, this thermostat housing ensures proper coolant flow and temperature regulation for your engine.

  • Material: High-quality black plastic for corrosion resistance
  • Outlet port diameter: 2.4 inches
  • Inlet port diameter: 1.23 inches
  • Height: 3.51 inches
  • Includes gasket or seal for secure installation
  • Mounting holes: 5 to 6 holes with varying bolt hole center distances (2.24, 2.62, 2.81 inches)
  • Flange thickness: 0.41 inches
  • Does not include thermostat, bolts, or O-rings
  • Compatible with multiple Hyundai and Kia models

Detailed Product Description

The Dorman 902-5128 engine coolant thermostat housing is engineered to meet the specifications required for proper engine cooling in Hyundai Optima, Sonata, Santa Fe, Santa Fe Sport, and Kia Sorento, Sportage, and Tucson models. Its black plastic construction offers resistance to corrosion and heat, helping maintain the integrity of the cooling system. The housing features multiple mounting holes with precise bolt hole center measurements to ensure a secure fit. The included gasket or seal helps prevent coolant leaks, maintaining system pressure and efficiency. Note that this housing does not include the thermostat, bolts, or O-rings, so these components must be sourced separately if needed.

Compatible Vehicles and Common Applications

  • Hyundai Optima engine coolant thermostat housing replacement
  • Hyundai Sonata cooling system repair part
  • Hyundai Santa Fe and Santa Fe Sport thermostat housing upgrade
  • Kia Sorento and Sportage engine cooling component
  • Kia Tucson thermostat housing for coolant flow management

Installation Notes and Tips

When installing the Dorman 902-5128 thermostat housing, ensure the engine is cool to avoid injury from hot coolant. Clean the mounting surface thoroughly before applying the included gasket or seal to prevent leaks. Verify the correct orientation of the housing and align all mounting holes accurately. Since bolts and O-rings are not included, use OEM or compatible hardware to secure the housing properly. After installation, refill the cooling system and check for leaks during engine warm-up.

Quality Assurance and Warranty

Dorman parts are manufactured to meet or exceed OEM standards for fit, form, and function. The 902-5128 thermostat housing undergoes quality inspections to ensure durability and performance in demanding engine environments. Please refer to Dorman's warranty policy for specific coverage details.

BrandDorman
Part Number902-5128
MaterialPlastic
ColorBlack
Outlet Port Diameter2.4
Height3.51
Gasket Or Seal IncludedYes
Mounting Hole Quantity5
Mounting Hole Quantity6
Bolt Hole Center To Bolt Hole Center2.24
Bolt Hole Center To Bolt Hole Center2.62
Bolt Hole Center To Bolt Hole Center2.81
Inlet Port Diameter1.23
Flange Thickness0.41
Mounting Hole Diameter0.2
Air Vent (Bleeder Valve)No
Bolts IncludedNo
O Rings IncludedNo
Package Contents1 thermostat housing
Thermostat IncludedNo

This part fits 30 vehicles. Search below:

YearMakeModelLitersCylindersFuel TypePositionNotes
2015HyundaiSanta Fe Sport2.4LL4N/AHousing
2015HyundaiTucson2.4LL4N/AHousing
2015KiaOptima2.4LL4N/AHousing
2015KiaSportage2.4LL4N/AHousing
2014HyundaiSanta Fe Sport2.4LL4N/AHousing
2014HyundaiSonata2.4LL4GASN/AHousing
2014HyundaiTucson2.4LL4N/AHousing
2014KiaOptima2.4LL4N/AHousing
2014KiaSorento2.4LL4N/AHousing
2014KiaSportage2.4LL4N/AHousing
2013HyundaiSanta Fe Sport2.4LL4N/AHousing
2013HyundaiSonata2.4LL4GASN/AHousing
2013HyundaiTucson2.4LL4N/AHousing
2013KiaOptima2.4LL4N/AHousing
2013KiaSorento2.4LL4N/AHousing
2013KiaSportage2.4LL4N/AHousing
2012HyundaiSanta Fe2.4LL4N/AHousing
2012HyundaiSonata2.4LL4GASN/AHousing
2012HyundaiTucson2.4LL4N/AHousing
2012KiaOptima2.4LL4N/AHousing
2012KiaSorento2.4LL4N/AHousing
2012KiaSportage2.4LL4N/AHousing
2011HyundaiSanta Fe2.4LL4N/AHousing
2011HyundaiSonata2.4LL4GASN/AHousing
2011HyundaiTucson2.4LL4N/AHousing
2011KiaOptima2.4LL4N/AHousing
2011KiaSorento2.4LL4N/AHousing
2011KiaSportage2.4LL4N/AHousing
2010HyundaiSanta Fe2.4LL4N/AHousing
2010HyundaiTucson2.4LL4N/AHousing

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

256002G50086025CH5127CO34874

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.