Motorad CH5677 Engine Coolant Thermostat Housing - Lower

Engine Coolant Thermostat Housing for Ford and Mercury

The Motorad CH5677 engine coolant thermostat housing is built for OE-style cooling system service on select Ford and Mercury applications. It uses plastic construction with a black finish, includes a gasket or seal, and comes with bolts for a direct replacement on listed vehicles.

Key Features

• Plastic thermostat housing with black finish
• Gasket or seal included for installation
• Bolts included
• 3 mounting holes
• Manufactured to OE quality standards by an OE supplier
• Thermal shock validated and 100% leak tested
• Meets or exceeds OEM standards

Detailed Description

Motorad CH5677 is an engine coolant thermostat housing made for cooling system repair where the original housing has cracked, warped, or begun leaking. This thermostat housing is engineered for select 1997-2001 Ford Explorer, 2001 Ford Explorer Sport Trac, and 1998-2001 Mercury Mountaineer applications. It is a direct-fit replacement for the lower housing on the 2001 Ford Explorer and is listed for vehicles that require two sensors on that application. This part cross-references Dorman - OE Solutions 902-1006 for the same application.

Common Repair Symptoms

• Coolant leaking from the thermostat housing area
• Cracked or brittle plastic housing
• Warped sealing surface causing seepage
• Overheating caused by coolant loss
• Failed housing during thermostat service

Installation Notes

Verify the vehicle year, model, and housing position before installation. The 2001 Ford Explorer listing is for the lower housing and requires two sensors. Confirm sensor transfer and connector condition before reassembly. Clean the mating surfaces thoroughly so the included seal can seat correctly, and torque fasteners evenly to help prevent leaks.

Quality Assurance

Motorad manufactures this thermostat housing to OE quality standards using proprietary material selected for demanding cooling systems. It is thermal shock validated and 100% leak tested to support reliable sealing performance in service.