HomeBelts and Cooling > Thermostat and HousingGates CO34833 Engine Coolant Thermostat Housing Cover
Part #: CO34833

Gates CO34833 Engine Coolant Thermostat Housing Cover

Coolant Outlet
⚙️ 32 vehicles fit this part
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Select your vehicle to confirm fitment
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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: Chevrolet and GMC, Silverado 2500 HD, Silverado 3500 HD, Sierra 2500 HD, Sierra 3500 HD, Silverado 2500 HD Classic, Silverado 3500 Classic, Sierra 2500 HD Classic, Sierra 3500 Classic, Silverado 3500, and Sierra 3500
🔄Easy Returns — Return within 60 days for a full refund
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Overview of Gates Coolant Outlet CO34833

The Gates Coolant Outlet CO34833 is a precision-engineered engine coolant thermostat housing cover designed for select Chevrolet and GMC heavy-duty trucks. Crafted from durable aluminum, this thermostat cover ensures reliable cooling system performance for vehicles like the Silverado 2500 HD and Sierra 3500 HD models.

  • Material: High-quality aluminum construction for durability and heat resistance
  • Outlet Outside Diameter: 2.31 inches
  • Outlet Inside Diameter: 1.99 inches
  • Bolt Hole Quantity: 4 for secure mounting
  • Type: Thermostat cover without by-pass holes
  • Gasket and seal quantity: None included
  • Compatible with Chevrolet and GMC 2500 and 3500 HD series trucks

Detailed Product Description

The Gates Coolant Outlet CO34833 is part of the Coolant Outlet product line, which focuses on delivering reliable thermostat housing covers and coolant outlets for heavy-duty applications. This aluminum thermostat cover is engineered to meet the cooling system requirements of Chevrolet and GMC trucks, including the Sierra 2500 HD Classic, Silverado 3500 Classic, and other 2500 and 3500 HD variants. The cover features four bolt holes for a secure fit and an outlet with an outside diameter of 2.31 inches and an inside diameter of 1.99 inches, ensuring proper coolant flow and system integrity. It does not include gaskets or seals, so these components should be sourced separately during installation.

Common Applications and Problem Solving

  • Replacement of cracked or damaged thermostat housing covers
  • Resolving coolant leaks around the thermostat outlet
  • Restoring proper coolant flow in Chevrolet Silverado 2500 HD and GMC Sierra 3500 HD trucks
  • Addressing overheating issues caused by faulty thermostat covers
  • Maintaining engine cooling system integrity in heavy-duty trucks

Installation Notes and Tips

When installing the Gates Coolant Outlet CO34833, ensure the mating surfaces are clean and free of old gasket material since this part does not include gaskets or seals. Use the correct torque specifications for the four bolt holes to avoid warping or leaks. It is recommended to inspect the thermostat and surrounding cooling system components during installation to ensure overall system reliability.

Quality Assurance and Warranty

Gates is a recognized manufacturer of automotive cooling system components, and the CO34833 coolant outlet is manufactured to meet industry standards for durability and fitment. While this part is not an exact OE replacement, it is designed to provide a reliable aftermarket solution for Chevrolet and GMC heavy-duty trucks. Warranty information should be confirmed with the distributor or retailer at the time of purchase.

BrandGates
Part NumberCO34833
PositionCoolant Outlet
0
No
Bolt Hole Quantity4
By-Pass HolesNo
ContentsCoolant Outlet
Gasket Quantity0
MaterialAluminum
Number of Bolt Holes4
Number of Gaskets0
Number of Seals0
OE ExactNo
Outlet Inside Diameter1.99
Outlet Inside Diameter 1 (in)1.99
Outlet Outside Diameter2.31
Outlet Outside Diameter 1 (in)2.31
TypeCoolant Outlet
TypeThermostat Cover

This part fits 32 vehicles. Search below:

YearMakeModelLitersCylindersFuel TypePositionNotes
2010ChevroletSilverado 2500 HD6.6LV8DIESELN/AEngine Coolant Thermostat Housing Cover - Fits multiple vehicle models.; Coolant Outlet
2010ChevroletSilverado 3500 HD6.6LV8DIESELN/AEngine Coolant Thermostat Housing Cover - Fits multiple vehicle models.; Coolant Outlet
2010GMCSierra 2500 HD6.6LV8DIESELN/AEngine Coolant Thermostat Housing Cover - Fits multiple vehicle models.; Coolant Outlet
2010GMCSierra 3500 HD6.6LV8DIESELN/AEngine Coolant Thermostat Housing Cover - Fits multiple vehicle models.; Coolant Outlet
2009ChevroletSilverado 2500 HD6.6LV8DIESELN/AEngine Coolant Thermostat Housing Cover - Fits multiple vehicle models.; Coolant Outlet
2009ChevroletSilverado 3500 HD6.6LV8DIESELN/AEngine Coolant Thermostat Housing Cover - Fits multiple vehicle models.; Coolant Outlet
2009GMCSierra 2500 HD6.6LV8DIESELN/AEngine Coolant Thermostat Housing Cover - Fits multiple vehicle models.; Coolant Outlet
2009GMCSierra 3500 HD6.6LV8DIESELN/AEngine Coolant Thermostat Housing Cover - Fits multiple vehicle models.; Coolant Outlet
2008ChevroletSilverado 2500 HD6.6LV8DIESELN/AEngine Coolant Thermostat Housing Cover - Fits multiple vehicle models.; Coolant Outlet
2008ChevroletSilverado 3500 HD6.6LV8DIESELN/AEngine Coolant Thermostat Housing Cover - Fits multiple vehicle models.; Coolant Outlet
2008GMCSierra 2500 HD6.6LV8DIESELN/AEngine Coolant Thermostat Housing Cover - Fits multiple vehicle models.; Coolant Outlet
2008GMCSierra 3500 HD6.6LV8DIESELN/AEngine Coolant Thermostat Housing Cover - Fits multiple vehicle models.; Coolant Outlet
2007ChevroletSilverado 2500 HD6.6LV8DIESELN/AEngine Coolant Thermostat Housing Cover - Fits multiple vehicle models.; Coolant Outlet
2007ChevroletSilverado 2500 HD Classic6.6LV8DIESELN/AEngine Coolant Thermostat Housing Cover - Fits multiple vehicle models.; Coolant Outlet
2007ChevroletSilverado 3500 Classic6.6LV8DIESELN/AEngine Coolant Thermostat Housing Cover - Fits multiple vehicle models.; Coolant Outlet
2007ChevroletSilverado 3500 HD6.6LV8DIESELN/AEngine Coolant Thermostat Housing Cover - Fits multiple vehicle models.; Coolant Outlet
2007GMCSierra 2500 HD6.6LV8DIESELN/AEngine Coolant Thermostat Housing Cover - Fits multiple vehicle models.; Coolant Outlet
2007GMCSierra 2500 HD Classic6.6LV8DIESELN/AEngine Coolant Thermostat Housing Cover - Fits multiple vehicle models.; Coolant Outlet
2007GMCSierra 3500 Classic6.6LV8DIESELN/AEngine Coolant Thermostat Housing Cover - Fits multiple vehicle models.; Coolant Outlet
2007GMCSierra 3500 HD6.6LV8DIESELN/AEngine Coolant Thermostat Housing Cover - Fits multiple vehicle models.; Coolant Outlet
2006ChevroletSilverado 2500 HD6.6LV8DIESELN/AEngine Coolant Thermostat Housing Cover - Fits multiple vehicle models.; Coolant Outlet
2006ChevroletSilverado 35006.6LV8DIESELN/AEngine Coolant Thermostat Housing Cover - Fits multiple vehicle models.; Coolant Outlet
2006GMCSierra 2500 HD6.6LV8DIESELN/AEngine Coolant Thermostat Housing Cover - Fits multiple vehicle models.; Coolant Outlet
2006GMCSierra 35006.6LV8DIESELN/AEngine Coolant Thermostat Housing Cover - Fits multiple vehicle models.; Coolant Outlet
2005ChevroletSilverado 2500 HD6.6LV8DIESELN/AEngine Coolant Thermostat Housing Cover - Fits multiple vehicle models.; Coolant Outlet
2005ChevroletSilverado 35006.6LV8DIESELN/AEngine Coolant Thermostat Housing Cover - Fits multiple vehicle models.; Coolant Outlet
2005GMCSierra 2500 HD6.6LV8DIESELN/AEngine Coolant Thermostat Housing Cover - Fits multiple vehicle models.; Coolant Outlet
2005GMCSierra 35006.6LV8DIESELN/AEngine Coolant Thermostat Housing Cover - Fits multiple vehicle models.; Coolant Outlet
2004ChevroletSilverado 2500 HD6.6LV8DIESELN/AEngine Coolant Thermostat Housing Cover - Fits multiple vehicle models.; Coolant Outlet
2004ChevroletSilverado 35006.6LV8DIESELN/AEngine Coolant Thermostat Housing Cover - Fits multiple vehicle models.; Coolant Outlet
2004GMCSierra 2500 HD6.6LV8DIESELN/AEngine Coolant Thermostat Housing Cover - Fits multiple vehicle models.; Coolant Outlet
2004GMCSierra 35006.6LV8DIESELN/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:

86007902-212797361881CH6007

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