HomeBelts and Cooling > Thermostat and HousingGates CO35003 Engine Coolant Thermostat Housing Cover
Part #: CO35003

Gates CO35003 Engine Coolant Thermostat Housing Cover

Coolant Outlet
⚙️ 8 vehicles fit this part
🔍
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: Honda, Civic, BR-V, and CR-V
🔄Easy Returns — Return within 60 days for a full refund
🚚Fast Shipping — Most orders ship same business day before 1pm CST

Overview of Gates CO35003 Thermostat Housing Cover

The Gates Coolant Outlet Engine Coolant Thermostat Housing Cover CO35003 is designed for reliable cooling system performance in select Honda vehicles. Engineered from cast aluminum, this thermostat cover ensures durability and precise fitment for Honda BR-V, Civic, and CR-V models.

  • Constructed from durable cast aluminum material
  • Exact OE replacement for a precise fit
  • Features 2 bolt holes for secure mounting
  • Outlet outside diameter of 1.26 inches and inside diameter of 1.08 inches
  • Thermostat cover type with no by-pass holes or included gaskets

Detailed Product Description

The Gates CO35003 thermostat housing cover is part of the Coolant Outlet product line, which focuses on components that manage engine coolant flow efficiently. This cover is crafted from cast aluminum, providing strength and resistance to corrosion under high-temperature conditions. It features two bolt holes for secure attachment and an outlet designed with an outside diameter of 1.26 inches and an inside diameter of 1.08 inches, matching original equipment specifications. The absence of by-pass holes and gaskets means it is intended to be used with existing seals and gaskets in the cooling system. This thermostat cover is an exact OE replacement, ensuring compatibility and reliable performance in Honda BR-V, Civic, and CR-V models.

Common Applications and Problem Resolution

  • Replacement for cracked or damaged thermostat housing covers
  • Fixes coolant leaks caused by worn or corroded covers
  • Restores proper coolant flow and engine temperature regulation
  • Prevents overheating due to faulty thermostat housing
  • Maintains engine cooling system integrity in Honda BR-V, Civic, and CR-V vehicles

Installation Notes and Tips

  • Ensure the engine is cool before beginning installation
  • Inspect and replace any worn gaskets or seals during installation, as this part does not include gaskets
  • Torque bolts to manufacturer specifications to avoid leaks or damage
  • Verify outlet diameters match existing hoses for proper fit
  • Check for coolant leaks after installation and during initial engine operation

Quality Assurance and Warranty

The Gates Coolant Outlet thermostat housing cover CO35003 meets exact OE specifications for fit and function, providing dependable service life. Manufactured with high-quality cast aluminum, it offers resistance to corrosion and thermal stress. While specific warranty details are not provided, Gates products typically adhere to industry standards for quality and reliability.

BrandGates
Part NumberCO35003
PositionCoolant Outlet
0
No
Bolt Hole Quantity2
By-Pass HolesNo
ContentsThermostat Cover
Gasket Quantity0
MaterialCast Aluminum
Number of Bolt Holes2
Number of Gaskets0
Number of Seals0
OE ExactYes
Outlet Inside Diameter1.08
Outlet Inside Diameter 1 (in)1.08
Outlet Outside Diameter1.26
Outlet Outside Diameter 1 (in)1.26
TypeThermostat Cover
TypeThermostat Cover

This part fits 8 vehicles. Search below:

YearMakeModelLitersCylindersFuel TypePositionNotes
2021HondaCivic1.5LL4GASN/AEngine Coolant Water Outlet - Thermostat Housing; Coolant Outlet
2020HondaBR-V1.5LL4GASN/AEngine Coolant Thermostat Housing Cover - Fits multiple vehicle models.; Coolant Outlet
2020HondaCR-V1.5LL4GASN/AEngine Coolant Thermostat Housing Cover - Fits multiple vehicle models.; Coolant Outlet
2019HondaBR-V1.5LL4GASN/AEngine Coolant Thermostat Housing Cover - Fits multiple vehicle models.; Coolant Outlet
2019HondaCR-V1.5LL4GASN/AEngine Coolant Thermostat Housing Cover - Fits multiple vehicle models.; Coolant Outlet
2018HondaCivic1.5LL4GASN/AEngine Coolant Thermostat Housing Cover - Fits multiple vehicle models.; Coolant Outlet
2017HondaCivic1.5LL4GASN/AEngine Coolant Thermostat Housing Cover - Fits multiple vehicle models.; Coolant Outlet
2016HondaCivic1.5LL4GASN/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:

1931159B000CH1023

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