Stant 14778 Engine Coolant Thermostat / Water Outlet Assembly

Integrated Thermostat Housing for OE-Temp Cooling

The Stant Integrated Thermostat Housing, part number 14778, combines the thermostat and water outlet housing into one assembly for a cleaner, more direct replacement. It is built from durable material for long service life and is set to 180 degrees to match OE temperature requirements.

For drivers searching for a 2002-2006 Nissan Altima thermostat housing, a 2002-2008 Nissan Maxima water outlet assembly, or a 2003-2007 Nissan Murano integrated thermostat housing, this Stant 14778 part provides the correct OE-temperature configuration.

Key Features

• Integrated thermostat housing assembly simplifies replacement of the thermostat and housing together
• 180-degree thermostat setting for OE-temperature operation
• Durable housing material for long-lasting service
• Bypass plate diameter: 1.18 in.
• Flange diameter with seal: 1.46 in.; without seal: 1.63 in.
• Height from flange to bottom: 1.3 in.

Detailed Product Information

Stant 14778 is an engine coolant thermostat / water outlet assembly engineered for Nissan and INFINITI applications that use an integrated thermostat housing design. The thermostat is built into the housing, which reduces the number of separate components to transfer during service and helps maintain the original cooling-system layout. This part number is a direct fit for 2002-2006 Nissan Altima, 2002-2008 Nissan Maxima, 2003-2007 Nissan Murano, 2004-2009 Nissan Quest, and 2002-2004 INFINITI I35 models with OE-temperature requirements.

Stant’s Integrated Thermostat Housing product line focuses on replacement assemblies that match the factory-style thermostat and outlet configuration. Part number 14778 is a practical choice when servicing a cooling system that uses an integrated water outlet thermostat housing and a 180-degree thermostat specification.

Common Cooling System Issues This Part Addresses

• Cracked or leaking thermostat housing at the water outlet
• Sticking thermostat that affects engine warm-up and operating temperature
• Cooling-system service on vehicles with an integrated thermostat design
• Temperature control concerns tied to OE 180-degree thermostat specifications
• Replacement needs for worn housing sealing surfaces

Installation Notes and Tips

Confirm the OE-temperature requirement and housing style before installation. Compare the flange diameter, bypass plate diameter, and overall height to the original part to verify proper fitment. Clean the mating surfaces thoroughly and inspect the cooling system for contamination or seal damage before reassembly. This part cross-references 172286 and 182286 for the same application.

Quality Assurance

Stant manufactures cooling-system components for OE-style replacement applications, and this integrated thermostat housing is built to support consistent fit and temperature control in the listed Nissan and INFINITI vehicles.

Compatible With 2002-2006 Nissan Altima, 2002-2008 Nissan Maxima, 2003-2007 Nissan Murano, 2004-2009 Nissan Quest, and 2002-2004 INFINITI I35.