Gates CO35037 Engine Coolant Water Outlet

Coolant Outlet for Kia and Hyundai

Gates CO35037 is an engine coolant water outlet built for direct replacement service on select Kia Optima and Hyundai Sonata applications. It is made from plastic and follows the original-style layout for a clean fit in the cooling system.

Gates Coolant Outlet parts are engineered as OE-style replacements that address common material and design issues seen in many aftermarket cooling components. The CO35037 coolant outlet is part of the Gates Coolant Outlet line, which covers water outlets and thermostat housing assemblies for repair work that needs a precise match to the original configuration.

Key Features

• Engine coolant water outlet / thermostat housing application
• Plastic construction
• Three bolt-hole mounting pattern
• Outlet inside diameters: 0.2, 0.41, 0.68, and 1.2
• Outlet outside diameters: 0.35, 0.55, 0.87, and 1.37
• Contents: thermostat housing
• Direct-fit replacement for select Kia Optima and Hyundai Sonata models

Detailed Description

Gates CO35037 is designed for 2013-2016 Kia Optima and 2013-2015 Hyundai Sonata vehicles with a coolant outlet application. If you are searching for a coolant outlet for 2013-2016 Kia Optima or a thermostat housing for 2013-2015 Hyundai Sonata, this part number provides an OE-style replacement built to match the original fit and function. The Gates CO35037 part number is also useful when cross-referencing cooling system repairs that call for a direct replacement water outlet.

This coolant outlet is intended to restore the connection point in the engine cooling circuit where coolant is routed through the thermostat housing assembly. Gates focuses this product line on practical replacement value, with attention to fit, material selection, and long service life in everyday cooling system service.

This part cross-references Hyundai/Kia OE numbers 256202G670 and CH2005 for the same application.

Common Repair Uses

• Cracked or leaking coolant outlet housing
• Damaged thermostat housing connection points
• Coolant seepage around the outlet assembly
• Cooling system service on a 2013-2016 Kia Optima
• Cooling system service on a 2013-2015 Hyundai Sonata

Installation Notes and Tips

Verify the vehicle year, engine configuration, and outlet layout before installation. Compare the mounting points, hose connections, and housing shape to the original part to confirm the Gates CO35037 matches the existing coolant outlet. Inspect adjacent cooling system components for wear, contamination, or damage before reassembly.

Quality Assurance

Gates positions this coolant outlet line as an OE-style replacement solution with improved material and design consistency over many aftermarket alternatives. The CO35037 is built for direct replacement service and long-term cooling system performance in the listed Kia Optima and Hyundai Sonata applications.