HomeBelts and Cooling > Thermostat and HousingGates CO34738 Engine Coolant Water Outlet - Lower Housing
Part #: CO34738

Gates CO34738 Engine Coolant Water Outlet - Lower Housing

Coolant Outlet, Lower Housing
⚙️ 67 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
📦Coolant Outlet, Lower Housing
🚗Fitment: Ford, Mazda, and Mercury, Ranger, Explorer, Explorer Sport Trac, Mustang, B4000, Mountaineer, and Explorer Sport
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Overview of Gates Coolant Outlet CO34738

The Gates Coolant Outlet CO34738 is a precision-engineered engine coolant water outlet designed for select Ford, Mazda, and Mercury vehicles. This component ensures efficient coolant flow and system integrity, supporting optimal engine temperature regulation.

  • Constructed from durable plastic material for corrosion resistance
  • Features a 0.71 inch outside diameter outlet and 0.532 inch inside diameter
  • Includes 3 bolt holes for secure mounting
  • Equipped with 2 seals and bypass holes for improved coolant circulation
  • Compatible with Ford B4000, Explorer, Explorer Sport, Explorer Sport Trac, Mountaineer, Mustang, and Ranger models

Detailed Product Description and Attributes

The Gates Coolant Outlet CO34738 is part of the Coolant Outlet brand line, which focuses on reliable and precise engine coolant water outlets. This part is molded from high-quality plastic, providing resistance to corrosion and heat exposure common in engine cooling systems. The outlet has an outside diameter of 0.71 inches and an inside diameter of 0.532 inches, designed to match OEM specifications closely, although it is not an exact OE replacement. It features three bolt holes for secure installation and includes two seals to maintain a tight coolant system connection. Additionally, the outlet incorporates bypass holes with an inside diameter of 0.887 inches and an outside diameter of 1.069 inches, facilitating proper coolant flow and preventing overheating.

Compatible Vehicles and Applications

This engine coolant water outlet is compatible with a range of Ford, Mazda, and Mercury vehicles, including the Ford B4000, Explorer, Explorer Sport, Explorer Sport Trac, Mountaineer, Mustang, and Ranger. It is designed to replace the original coolant outlet in these models, ensuring proper fit and function within the cooling system.

Common Issues Addressed by This Coolant Outlet

  • Prevents coolant leaks caused by cracked or damaged outlets
  • Restores proper coolant flow to avoid engine overheating
  • Eliminates bypass flow restrictions that can cause temperature fluctuations
  • Replaces worn or degraded seals to maintain system pressure
  • Secures mounting points to prevent coolant system failures

Installation Notes and Tips

When installing the Gates Coolant Outlet CO34738, ensure the mounting surface is clean and free of debris. Use the included seals to prevent leaks and tighten the three bolts evenly to the manufacturer's torque specifications. Verify that bypass holes align correctly to maintain proper coolant circulation. Although this part is not an exact OE replacement, it is engineered for a precise fit on compatible Ford, Mazda, and Mercury models.

Quality Assurance and Warranty

Gates is a recognized brand in automotive cooling components, and the Coolant Outlet product line is manufactured to meet industry standards for durability and performance. This part includes two seals to ensure a reliable coolant system seal. While this product is not an exact OE part, it is designed to provide consistent performance. Warranty details should be confirmed with the distributor or manufacturer.

BrandGates
Part NumberCO34738
PositionCoolant Outlet, Lower Housing
.887
1.069
2
Yes
Bolt Hole Quantity3
By-Pass HolesYes
By-Pass Inside Diameter (in).887
By-Pass Outside Diameter (in)1.069
ContentsCoolant Outlet, Seals
Gasket Quantity0
MaterialPlastic
Number of Bolt Holes3
Number of Gaskets0
Number of Seals2
OE ExactNo
Outlet Inside Diameter.532
Outlet Inside Diameter 1 (in).532
Outlet Outside Diameter.71
Outlet Outside Diameter 1 (in).71
TypeCoolant Outlet
TypeCoolant Outlet

This part fits 67 vehicles. Search below:

YearMakeModelLitersCylindersFuel TypePositionNotes
2011FordRanger4.0LV6GASLower HousingEngine Coolant Hose Flange comes with seal included; Coolant Outlet
2010FordExplorer4.0LV6GASLower HousingEngine Coolant Hose Flange comes with seal included; Coolant Outlet
2010FordExplorer Sport Trac4.0LV6GASLower HousingEngine Coolant Hose Flange comes with seal included; Coolant Outlet
2010FordMustang4.0LV6GASLower HousingEngine Coolant Hose Flange comes with seal included; Coolant Outlet
2010FordRanger4.0LV6GASLower HousingEngine Coolant Hose Flange comes with seal included; Coolant Outlet
2010MazdaB40004.0LV6GASLower HousingEngine Coolant Hose Flange comes with seal included; Coolant Outlet
2010MercuryMountaineer4.0LV6GASLower HousingEngine Coolant Hose Flange comes with seal included; Coolant Outlet
2009FordExplorer4.0LV6GASLower HousingEngine Coolant Hose Flange comes with seal included; Coolant Outlet
2009FordExplorer Sport Trac4.0LV6GASLower HousingEngine Coolant Hose Flange comes with seal included; Coolant Outlet
2009FordMustang4.0LV6GASLower HousingEngine Coolant Hose Flange comes with seal included; Coolant Outlet
2009FordRanger4.0LV6GASLower HousingEngine Coolant Hose Flange comes with seal included; Coolant Outlet
2009MazdaB40004.0LV6GASLower HousingEngine Coolant Hose Flange comes with seal included; Coolant Outlet
2009MercuryMountaineer4.0LV6GASLower HousingEngine Coolant Hose Flange comes with seal included; Coolant Outlet
2008FordExplorer4.0LV6GASLower HousingEngine Coolant Hose Flange comes with seal included; Coolant Outlet
2008FordExplorer Sport Trac4.0LV6GASLower HousingEngine Coolant Hose Flange comes with seal included; Coolant Outlet
2008FordMustang4.0LV6GASLower HousingEngine Coolant Hose Flange comes with seal included; Coolant Outlet
2008FordRanger4.0LV6GASLower HousingEngine Coolant Hose Flange comes with seal included; Coolant Outlet
2008MazdaB40004.0LV6GASLower HousingEngine Coolant Hose Flange comes with seal included; Coolant Outlet
2008MercuryMountaineer4.0LV6GASLower HousingEngine Coolant Hose Flange comes with seal included; Coolant Outlet
2007FordExplorer4.0LV6GASLower HousingEngine Coolant Hose Flange comes with seal included; Coolant Outlet
2007FordExplorer Sport Trac4.0LV6GASLower HousingEngine Coolant Hose Flange comes with seal included; Coolant Outlet
2007FordMustang4.0LV6GASLower HousingEngine Coolant Hose Flange comes with seal included; Coolant Outlet
2007FordRanger4.0LV6GASLower HousingEngine Coolant Hose Flange comes with seal included; Coolant Outlet
2007MazdaB40004.0LV6GASLower HousingEngine Coolant Hose Flange comes with seal included; Coolant Outlet
2007MercuryMountaineer4.0LV6GASLower HousingEngine Coolant Hose Flange comes with seal included; Coolant Outlet
2006FordExplorer4.0LV6GASLower HousingEngine Coolant Hose Flange comes with seal included; Coolant Outlet
2006FordMustang4.0LV6GASLower HousingEngine Coolant Hose Flange comes with seal included; Coolant Outlet
2006FordRanger4.0LV6GASLower HousingEngine Coolant Hose Flange comes with seal included; Coolant Outlet
2006MazdaB40004.0LV6GASLower HousingEngine Coolant Hose Flange comes with seal included; Coolant Outlet
2006MercuryMountaineer4.0LV6GASLower HousingEngine Coolant Hose Flange comes with seal included; Coolant Outlet
2005FordExplorer4.0LV6FLEXLower HousingEngine Coolant Hose Flange comes with seal included; Coolant Outlet
2005FordExplorer4.0LV6GASLower HousingEngine Coolant Hose Flange comes with seal included; Coolant Outlet
2005FordExplorer Sport Trac4.0LV6FLEXLower HousingEngine Coolant Hose Flange comes with seal included; Coolant Outlet
2005FordExplorer Sport Trac4.0LV6GASLower HousingEngine Coolant Hose Flange comes with seal included; Coolant Outlet
2005FordMustang4.0LV6GASLower HousingEngine Coolant Hose Flange comes with seal included; Coolant Outlet
2005FordRanger4.0LV6GASLower HousingEngine Coolant Hose Flange comes with seal included; Coolant Outlet
2005MazdaB40004.0LV6GASLower HousingEngine Coolant Hose Flange comes with seal included; Coolant Outlet
2005MercuryMountaineer4.0LV6FLEXLower HousingEngine Coolant Hose Flange comes with seal included; Coolant Outlet
2005MercuryMountaineer4.0LV6GASLower HousingEngine Coolant Hose Flange comes with seal included; Coolant Outlet
2004FordExplorer4.0LV6FLEXLower HousingEngine Coolant Hose Flange comes with seal included; Coolant Outlet
2004FordExplorer4.0LV6GASLower HousingEngine Coolant Hose Flange comes with seal included; Coolant Outlet
2004FordExplorer Sport Trac4.0LV6FLEXLower HousingEngine Coolant Hose Flange comes with seal included; Coolant Outlet
2004FordExplorer Sport Trac4.0LV6GASLower HousingEngine Coolant Hose Flange comes with seal included; Coolant Outlet
2004FordRanger4.0LV6GASLower HousingEngine Coolant Hose Flange comes with seal included; Coolant Outlet
2004MazdaB40004.0LV6GASLower HousingEngine Coolant Hose Flange comes with seal included; Coolant Outlet
2004MercuryMountaineer4.0LV6FLEXLower HousingEngine Coolant Hose Flange comes with seal included; Coolant Outlet
2004MercuryMountaineer4.0LV6GASLower HousingEngine Coolant Hose Flange comes with seal included; Coolant Outlet
2003FordExplorer4.0LV6FLEXLower HousingEngine Coolant Hose Flange comes with seal included; Coolant Outlet
2003FordExplorer4.0LV6GASLower HousingEngine Coolant Hose Flange comes with seal included; Coolant Outlet
2003FordExplorer Sport4.0LV6GASLower HousingEngine Coolant Hose Flange comes with seal included; Coolant Outlet
2003FordExplorer Sport Trac4.0LV6GASLower HousingEngine Coolant Hose Flange comes with seal included; Coolant Outlet
2003FordRanger4.0LV6GASLower HousingEngine Coolant Hose Flange comes with seal included; Coolant Outlet
2003MazdaB40004.0LV6GASLower HousingEngine Coolant Hose Flange comes with seal included; Coolant Outlet
2003MercuryMountaineer4.0LV6FLEXLower HousingEngine Coolant Hose Flange comes with seal included; Coolant Outlet
2002FordExplorer4.0LV6FLEXLower HousingEngine Coolant Hose Flange comes with seal included; Coolant Outlet
2002FordExplorer4.0LV6GASLower HousingEngine Coolant Hose Flange comes with seal included; Coolant Outlet
2002FordExplorer Sport4.0LV6GASLower HousingEngine Coolant Hose Flange comes with seal included; Coolant Outlet
2002FordExplorer Sport Trac4.0LV6GASLower HousingEngine Coolant Hose Flange comes with seal included; Coolant Outlet
2002FordRanger4.0LV6GASLower HousingEngine Coolant Hose Flange comes with seal included; Coolant Outlet
2002MazdaB40004.0LV6GASLower HousingEngine Coolant Hose Flange comes with seal included; Coolant Outlet
2002MercuryMountaineer4.0LV6FLEXLower HousingEngine Coolant Hose Flange comes with seal included; Coolant Outlet
2002MercuryMountaineer4.0LV6GASLower HousingEngine Coolant Hose Flange comes with seal included; Coolant Outlet
2001FordExplorer4.0LV6GASLower HousingW/Clip-In Sensor; Seal included; Coolant Outlet
2001FordExplorer Sport4.0LV6GASLower HousingW/Clip-In Sensor; Seal included; Coolant Outlet
2001FordExplorer Sport Trac4.0LV6GASLower HousingEngine Coolant Hose Flange comes with seal included; Coolant Outlet
2001FordRanger4.0LV6GASLower HousingW/Clip-In Sensor; Seal included; Coolant Outlet
2001MazdaB40004.0LV6GASLower HousingEngine Coolant Hose Flange comes with seal included; 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:

1F73151721L2Z 8592 AA1L5Z 8592 BA1L5Z 8592 BB2L2Z 8592 BA2L5Z 8592 BB8156788156798513985140902-060902-1029CH5139RH144RH148

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