HomeBelts and Cooling > Thermostat and HousingGates CO34980 Engine Coolant Thermostat Housing Cover
Part #: CO34980

Gates CO34980 Engine Coolant Thermostat Housing Cover

Coolant Outlet
⚙️ 7 vehicles fit this part
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Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
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✅ In Stock · Ready To Ship Most orders ship same-day if ordered before 1pm CST.
OE Direct Replacement — Bolt-on fit, no modifications needed
📦Coolant Outlet
🚗Fitment: Hyundai and Kia, Optima and Sonata
🔄Easy Returns — Return within 60 days for a full refund
🚚Fast Shipping — Most orders ship same business day before 1pm CST

Overview of Gates Coolant Outlet Thermostat Housing Cover

The Gates Coolant Outlet Engine Coolant Thermostat Housing Cover (Part Number CO34980) is designed specifically for Hyundai and Kia vehicles, including the Optima and Sonata models. This thermostat cover is engineered to meet exact OE specifications, ensuring reliable performance and proper fitment.

  • Constructed from durable plastic material for corrosion resistance
  • Features 2 bolt holes for secure mounting
  • Outlet outside diameter measures 1.38 inches
  • Outlet inside diameter measures 1.13 inches
  • OE exact replacement for precise compatibility
  • Thermostat cover type with no by-pass holes
  • Does not include gaskets or seals

Detailed Product Description

This Gates Coolant Outlet thermostat housing cover is manufactured from high-quality plastic, providing a lightweight yet durable solution for your vehicle's cooling system. The part is designed with two bolt holes to ensure a secure and stable installation. Its outlet dimensions—1.38 inches outside diameter and 1.13 inches inside diameter—are engineered to match the original equipment, maintaining proper coolant flow and system integrity.

As part of the Gates Coolant Outlet product line, this thermostat cover is developed to meet stringent quality standards and exact OE fitment requirements. The Coolant Outlet line focuses on components that manage coolant flow efficiently, helping maintain optimal engine temperature and performance.

Compatible Vehicles and Applications

This thermostat housing cover is compatible with select Hyundai and Kia models, specifically the Hyundai Optima and Sonata. It is an ideal replacement part for those seeking an exact fit and reliable performance in their vehicle's cooling system.

  • Replacement for damaged or cracked thermostat housing covers
  • Resolves coolant leaks around the thermostat area
  • Prevents overheating caused by faulty thermostat covers
  • Restores proper coolant outlet dimensions for efficient flow
  • Maintains engine temperature regulation in Hyundai Optima and Kia Sonata

Installation Notes and Tips

When installing the Gates CO34980 thermostat housing cover, ensure the mounting surface is clean and free of debris. Since this part does not include gaskets or seals, use the appropriate OEM or aftermarket gaskets to prevent leaks. Tighten the two bolts evenly to the manufacturer's torque specifications to avoid warping or damage.

Quality Assurance and Warranty

The Gates Coolant Outlet thermostat housing cover is manufactured to meet OE exact standards, ensuring reliable fit and function. While specific warranty details are not provided, Gates products typically undergo rigorous quality control to maintain durability and performance in automotive cooling systems.

BrandGates
Part NumberCO34980
PositionCoolant Outlet
MaterialPlastic
Outlet Outside Diameter1.38
Bolt Hole Quantity2
TypeThermostat cover
Gasket Quantity0
Outlet Inside Diameter1.13
98410
9848No
By-Pass HolesNo
ContentsThermostat cover
Number of Bolt Holes2
Number of Gaskets0
Number of Seals0
OE ExactYes
Outlet Inside Diameter 1 (in)1.13
Outlet Outside Diameter 1 (in)1.38
TypeThermostat cover

This part fits 7 vehicles. Search below:

YearMakeModelLitersCylindersFuel TypePositionNotes
2020KiaOptima2.0LL4FULL HYBRID EV-GAS (FHEV)N/ACoolant Outlet
2019HyundaiSonata2.0LL4ELECTRIC/GASN/AEngine Coolant Thermostat Housing Cover - Fits multiple vehicle models.; Coolant Outlet
2019KiaOptima2.0LL4ELECTRIC/GASN/AEngine Coolant Thermostat Housing Cover - Fits multiple vehicle models.; Coolant Outlet
2018HyundaiSonata2.0LL4ELECTRIC/GASN/AEngine Coolant Thermostat Housing Cover - Fits multiple vehicle models.; Coolant Outlet
2018KiaOptima2.0LL4ELECTRIC/GASN/AEngine Coolant Thermostat Housing Cover - Fits multiple vehicle models.; Coolant Outlet
2017KiaOptima2.0LL4ELECTRIC/GASN/AEngine Coolant Thermostat Housing Cover - Fits multiple vehicle models.; Coolant Outlet
2016HyundaiSonata2.0LL4ELECTRIC/GASN/AEngine Coolant Thermostat Housing Cover - Fits multiple vehicle models.; Coolant Outlet

* 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:

256312E270CH1029

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