Gates CO35040 Engine Coolant Thermostat Housing

Engine Coolant Thermostat Housing for Toyota and Scion

Gates CO35040 is an engine coolant thermostat housing built for select Toyota Corolla, Toyota Matrix, and Scion xD applications. It is engineered as a direct-fit coolant outlet solution with aluminum and steel construction for dependable cooling system service.

The Gates Coolant Outlet line focuses on OE-style fit and function while addressing common material and manufacturing concerns found in many aftermarket alternatives. CO35040 is part of that product line and is designed for long service life in the cooling system.

Key Features

• Thermostat housing / coolant outlet design
• Aluminum and steel construction
• 3-bolt mounting pattern
• Outlet outside diameter: .66
• Outlet inside diameter: .55
• Contents: thermostat housing
• OE exact: No

Detailed Description

This Gates coolant outlet is intended for vehicles that use a thermostat housing-style engine coolant water outlet. It is a fitment-based replacement for 2014-2019 Toyota Corolla, 2009-2012 Toyota Corolla, 2009-2014 Toyota Matrix, and 2008 Scion xD applications. If you are searching for a Toyota Corolla thermostat housing replacement or a Toyota Matrix coolant outlet, CO35040 provides a direct-match option for the listed vehicles.

This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

What It Helps Address

• Cracked or leaking thermostat housing
• Coolant seepage at the engine coolant water outlet
• Corrosion or material wear in the housing body
• Improper sealing from a damaged outlet assembly
• Cooling system service needs on Toyota Corolla, Toyota Matrix, and Scion xD models

Installation Notes and Tips

Verify the original housing style, bolt pattern, and outlet dimensions before installation. Confirm the vehicle application by year, make, and model, especially when servicing a Toyota Corolla thermostat housing or Toyota Matrix coolant outlet. Inspect the mating surfaces and related cooling system components during replacement to help ensure a proper seal.

Quality Assurance

Gates Coolant Outlets are developed to fit and perform like the original design while improving on common aftermarket design, manufacturing, and material issues. CO35040 is part of Gates’ full-line coolant outlet program for thermostat housing and water outlet service.