Gates CO35040 Engine Coolant Thermostat Housing

Overview of Gates Coolant Outlet Thermostat Housing CO35040

The Gates Coolant Outlet Engine Coolant Thermostat Housing CO35040 is designed for reliable cooling system performance in select Toyota and Scion vehicles. Engineered with durable aluminum and steel materials, this thermostat housing supports efficient coolant flow and temperature regulation.

• Constructed from aluminum and steel for strength and corrosion resistance
• Thermostat housing type with 3 bolt holes for secure mounting
• Outlet outside diameter of 0.66 inches and inside diameter of 0.55 inches
• Compatible with Toyota Corolla, Matrix, and Scion xD models
• Part number CO35040 for precise identification

Product Line: Gates Coolant Outlet

The Gates Coolant Outlet product line focuses on components that manage engine coolant flow and temperature control. This line includes thermostat housings engineered to meet the demands of modern cooling systems, providing a balance of durability and fitment accuracy. The CO35040 thermostat housing is part of this line, designed to integrate seamlessly with the cooling systems of specific Toyota and Scion vehicles.

Detailed Product Description

This engine coolant thermostat housing features a robust construction using aluminum and steel, materials chosen for their resistance to heat and corrosion. The housing includes three bolt holes to ensure a secure and stable installation. Its outlet dimensions—0.66 inches outside diameter and 0.55 inches inside diameter—are designed to match OEM specifications closely, although this part is not an exact OE replacement. The housing does not include a gasket, so a compatible gasket must be sourced separately during installation.

Common Applications and Issues Addressed

• Replacement of cracked or leaking thermostat housings in Toyota Corolla, Matrix, and Scion xD
• Resolving coolant leaks that cause engine overheating
• Addressing thermostat housing corrosion or warping
• Maintaining proper coolant flow and engine temperature regulation
• Preventing coolant contamination and system pressure loss

Installation Notes and Tips

Ensure the engine is cool before beginning installation to avoid injury from hot coolant. Remove the old thermostat housing carefully, inspecting the mounting surface for debris or damage. Since this part does not include a gasket, install a new compatible gasket to prevent leaks. Tighten the three mounting bolts evenly to the manufacturer's torque specifications to ensure a proper seal and avoid warping the housing.

Quality Assurance and Warranty

Gates manufactures the CO35040 thermostat housing to meet industry standards for durability and fitment. While this part is not an exact OE replacement, it is engineered to provide reliable performance in compatible Toyota Corolla, Matrix, and Scion xD models. Warranty details should be confirmed with the point of purchase or manufacturer documentation.