Gates CO34790 Engine Coolant Water Outlet

Gates Coolant Outlet for Subaru Cooling Repair

The Gates CO34790 coolant outlet is an OE-exact replacement for Subaru cooling system service. Built from cast aluminum, it is made to match original fit and function for a direct repair on select Subaru WRX, WRX STI, Impreza, Forester, Legacy, Outback, and Baja applications.

Gates Coolant Outlet components are part of a focused product line that covers water outlets through complete thermostat housing assemblies. The goal is straightforward: provide a cost-effective replacement that addresses common aftermarket material and design issues while maintaining original-style performance and long service life.

Key Features

• OE-exact coolant outlet replacement
• Cast aluminum construction for durability
• Two-bolt mounting design
• Outlet inside diameter: 1.255 in.
• Outlet outside diameter: 1.495 in.
• No gasket included
• No seals included
• No bypass holes
• Direct-fit design for Subaru cooling system service

Detailed Description

The Gates CO34790 is an engine coolant water outlet designed to restore proper coolant routing at the thermostat housing area. Its cast aluminum body and OE-exact dimensions help it match the original part on Subaru cooling systems, making it a practical choice for repairs where the factory outlet has corroded, cracked, or warped. This part number is commonly searched as Gates CO34790 for Subaru WRX, Subaru WRX STI, and related models.

Compatible With 2013-2018 Subaru WRX STI, 2012-2016 Subaru WRX, 2002-2014 Subaru Impreza, 2004-2013 Subaru Forester, 2005-2012 Subaru Legacy, 1991-1994 Subaru Legacy, 2005-2012 Subaru Outback, and 2004-2006 Subaru Baja. This part cross-references Dorman OE Solutions 902-5052 for the same application.

What It Helps Fix

• Coolant leaks at the outlet or thermostat housing connection
• Cracked or corroded factory coolant outlet housing
• Improper sealing from a worn OE-style outlet
• Cooling system service issues on Subaru WRX and Impreza platforms
• Fitment problems caused by non-OE replacement geometry

Installation Notes and Tips

Inspect the mating surfaces, hoses, and thermostat housing before installation. Because no gasket is included, verify the correct sealing components for the vehicle before assembly. Clean all contact surfaces thoroughly and confirm hose diameter and bolt-hole alignment before tightening to specification.

Quality Assurance

Gates designs this coolant outlet to fit and perform like the original part while addressing common aftermarket material and manufacturing concerns. The OE-exact construction and cast aluminum housing support a service-ready repair for Subaru cooling system maintenance.