Stant 48689 Engine Coolant Thermostat / Water Outlet Assembly

Integrated Thermostat Housing for OE Cooling Service

Stant Part Number 48689 is an engine coolant thermostat and water outlet assembly built for direct cooling-system service on select Ford and Mercury applications. It combines the thermostat into the housing to streamline replacement and uses durable construction for long service life.

Compatible With 2005-2008 Mercury Mariner, 2007-2008 Ford Escape, and 2010-2013 Ford Transit Connect applications that call for a 194-degree thermostat housing. Stant 48689 is also a practical OE-style choice for drivers searching for a Ford Escape thermostat housing or Mercury Mariner water outlet assembly.

Key Features

• Integrated thermostat housing assembly for simplified installation
• 194-degree thermostat temperature rating
• Durable housing material for long-term cooling system service
• Seal included where specified in fitment notes
• OE-temperature application for select Ford and Mercury vehicles
• Stant Part Number 48689 for easy catalog matching

Product Details

This integrated thermostat housing is engineered as a water outlet thermostat housing with the thermostat built into the assembly. That design reduces the need to service separate thermostat and housing components individually and helps restore proper coolant flow control in the engine cooling system. The housing dimensions include a 0.9-inch bypass plate diameter, 1.37-inch flange diameter with seal, 1.91-inch flange diameter without seal, and 0.4-inch height from flange to bottom.

Stant 48689 is listed for 2010-2013 Ford Transit Connect, 2008 Ford Escape, 2007 Ford Escape, 2008 Mercury Mariner, 2007 Mercury Mariner, and 2005-2006 Mercury Mariner. It is a direct-fit option for buyers looking for a Ford Escape thermostat housing, Mercury Mariner thermostat housing, or Transit Connect coolant thermostat assembly with OE-temperature operation.

Common Repair Uses

• Replacing a leaking thermostat housing
• Restoring proper engine coolant temperature control
• Addressing coolant seepage at the water outlet
• Correcting thermostat-related overheating or warm-up issues
• Servicing a worn integrated thermostat assembly on Ford and Mercury models

Installation Notes

Verify the 194-degree temperature specification and match the vehicle application before installation. Confirm the flange and bypass dimensions against the original part, and follow the vehicle service procedure for coolant draining, sealing surface preparation, and refill/bleed steps. For 2007 Ford Escape and 2007 Mercury Mariner applications, note the fitment requirement for Jan. 1 and newer vehicles with sensor.

Quality Assurance

Stant manufactures cooling-system components with OE-style application coverage and durable materials for service replacement use. Part Number 48689 is built as an integrated thermostat housing assembly to support accurate fitment on the listed Ford and Mercury vehicles.