Gates CO34987 Engine Coolant Thermostat Housing Cover

Gates Coolant Outlet Thermostat Cover

The Gates Coolant Outlet CO34987 is an OE-exact thermostat housing cover built for select Ford and Lincoln cooling system applications. It uses cast aluminum construction and includes a seal for a direct replacement on vehicles such as the Ford Edge, Lincoln Nautilus, and Ford F-150.

Gates Coolant Outlet components are part of a focused product line that covers water outlets, thermostat covers, and complete thermostat housing assemblies. The goal is to provide a replacement that matches original fit and function while addressing common aftermarket material and design concerns.

Key Features

• OE-exact thermostat cover design
• Cast aluminum construction for durability
• Outlet inside diameter: 1.25 in.
• Outlet outside diameter: 1.5 in.
• 2-bolt housing cover design
• Includes seal
• No gasket required
• No bypass holes

Detailed Description

Gates CO34987 is an engine coolant thermostat housing cover designed to match original equipment dimensions and sealing requirements. The cast aluminum body supports long service life in cooling system service, while the OE-exact profile helps maintain proper coolant routing and thermostat housing fitment. This part cross-references CH1011 and FT4Z 8592 A for the same application.

Compatible With select Ford Edge, Lincoln Nautilus, Lincoln Continental, Lincoln MKZ, Lincoln MKX, Ford Fusion, and Ford F-150 applications, this thermostat cover is a direct-fit cooling system replacement for vehicles listed in the fitment data. The CO34987 part number is also useful when searching for a Ford Edge thermostat housing cover or Lincoln Nautilus coolant outlet replacement.

Common Issues This Part Addresses

• Cracked or warped thermostat housing cover
• Coolant leaks at the thermostat outlet
• Damaged sealing surface on the housing cover
• Corrosion-related failure in the coolant outlet
• Improper fit from non-OE-style replacement parts

Installation Notes

Verify the outlet diameter, bolt-hole count, and OE reference before installation. Clean the mating surfaces thoroughly and inspect the thermostat housing and adjacent coolant components for wear or damage. Use the included seal during installation and follow the vehicle service procedure for coolant refill and bleed steps.

Fits 2022-2024 Ford Edge, N/A. Fits 2022-2023 Lincoln Nautilus, N/A. Fits 2017-2021 Ford Edge, N/A. Fits 2019-2021 Lincoln Nautilus, N/A. Fits 2017-2020 Lincoln Continental, N/A. Fits 2017-2020 Lincoln MKZ, N/A. Fits 2017-2019 Ford Fusion, N/A. Fits 2017-2018 Lincoln MKX, N/A. Fits 2015-2017 Ford F-150, N/A.

Quality Assurance

Gates designs its Coolant Outlet line to address common aftermarket design, manufacturing, and material issues while maintaining original-style fit and performance. CO34987 is built as an OE-exact replacement for the listed applications.