Gates CO34739 Engine Coolant Thermostat / Water Outlet Assembly

Overview of Gates Coolant Outlet CO34739

The Gates Coolant Outlet CO34739 is a precision-engineered engine coolant thermostat and water outlet assembly designed for select Ford and Mercury vehicles. This coolant outlet assembly ensures proper coolant flow and temperature regulation, essential for maintaining engine performance and preventing overheating.

• Material: Durable plastic construction
• Outlet outside diameters: 1.48 inches and 0.71 inches
• Outlet inside diameters: 1.151 inches and 0.532 inches
• Includes 2 seals, no gaskets
• 3 bolt holes for secure mounting
• By-pass holes included with inside diameter of 0.887 inches and outside diameter of 1.069 inches
• Contents include coolant outlet, seals, and thermostat

About the Gates Coolant Outlet Product Line

The Gates Coolant Outlet product line focuses on delivering reliable coolant outlet assemblies that integrate thermostat and water outlet functions. This line is engineered to meet the specific cooling system requirements of various vehicle models, including the Ford Explorer and Mercury Mountaineer. The CO34739 part exemplifies this line’s commitment to precise fitment and functional design, ensuring compatibility and efficient coolant flow.

Detailed Product Description

The CO34739 coolant outlet assembly is constructed from high-quality plastic, providing resistance to corrosion and heat within the engine cooling system. It features dual outlet diameters (1.48 inches and 0.71 inches outside, 1.151 inches and 0.532 inches inside) to accommodate specific hose connections. The assembly includes two seals to ensure a leak-free installation and three bolt holes for secure attachment. Additionally, the built-in by-pass holes (0.887 inches inside diameter and 1.069 inches outside diameter) facilitate proper coolant circulation, preventing hot spots and maintaining optimal engine temperature.

Compatible Vehicles and Common Applications

• Ford Explorer (various model years)
• Ford Explorer Sport and Sport Trac
• Mercury Mountaineer

This part number CO34739 is designed specifically for these models, ensuring a precise fit and reliable operation within their cooling systems.

Common Issues Addressed by This Coolant Outlet Assembly

• Coolant leaks due to worn or damaged outlets
• Overheating caused by faulty thermostat or poor coolant flow
• Corrosion or cracking in original plastic outlets
• Improper coolant circulation leading to engine temperature fluctuations
• Replacement of OEM parts that do not meet durability standards

Installation Notes and Tips

When installing the Gates CO34739 coolant outlet assembly, ensure the engine is cool before beginning work. Remove the old outlet carefully to avoid damaging surrounding components. Clean the mounting surface thoroughly to ensure a proper seal. Use the included seals and verify the three bolt holes align correctly for secure attachment. Check all hose connections for proper fitment to the specified outlet diameters. After installation, refill the cooling system and bleed air pockets to prevent overheating.

Quality Assurance and Warranty

Gates manufactures the CO34739 coolant outlet assembly to meet or exceed industry standards for durability and performance. While this part is not an exact OE replacement, it is engineered for reliable operation in compatible Ford and Mercury vehicles. The product includes two seals and a thermostat to ensure a complete assembly. Warranty information should be confirmed with the distributor or retailer, as it may vary by source.