Stant 14632 Engine Coolant Thermostat / Water Outlet Assembly

Integrated Thermostat Housing for BMW Cooling Service

Stant Part Number 14632 is an engine coolant thermostat and water outlet assembly built with the thermostat integrated into the housing. That one-piece design helps streamline cooling system service on select BMW applications, including 1996-1999 BMW 318i, 318is, 318ti, and 1996-1998 BMW Z3 models.

With a 203-degree thermostat rating and a durable housing construction, this Stant integrated thermostat housing is built for direct replacement use where OE temperature control is required. The Stant Integrated Thermostat Housing line focuses on combining the thermostat and housing into a single assembly for a cleaner, more efficient repair.

Key Features

• Integrated thermostat and water outlet housing assembly
• 203-degree thermostat temperature rating
• Durable housing material for long service life
• Seal included for the listed applications
• Bypass plate diameter: 1.53 in.
• Flange diameter with seal: 1.54 in.
• Flange diameter without seal: 2.3 in.
• Height from flange to bottom: 1.3 in.

Detailed Product Description

Stant 14632 is an OE-style engine coolant thermostat / water outlet assembly for BMW cooling system repair. The integrated design places the thermostat inside the housing, reducing the number of separate components to manage during replacement and helping simplify installation on 1996-1999 BMW 318i, 318is, 318ti, and 1996-1998 BMW Z3 vehicles. The 203-degree temperature specification matches the listed OE temperature requirement for these applications.

This part is part of Stant’s Integrated Thermostat Housing product line, which is built around complete thermostat housing assemblies rather than separate thermostat-only service parts. This approach is useful when the housing and thermostat are serviced together and a direct-fit replacement is needed for BMW cooling system maintenance. Part number 14632 is also the reference number to verify when ordering for the listed BMW 318i, BMW 318is, BMW 318ti, and BMW Z3 applications.

What This Part Helps Address

• Coolant leaks at the thermostat housing area
• Incorrect engine operating temperature from a worn thermostat
• Cracked or aged water outlet housing components
• Cooling system service where the thermostat and housing are replaced together
• Temperature control issues on BMW 318i, 318is, 318ti, and Z3 models

Installation Notes and Tips

• Verify the engine application and OE temperature requirement before installation.
• Inspect the mating surfaces and cooling hoses for wear, corrosion, or residue before assembly.
• Confirm flange and bypass dimensions against the original part when comparing fitment.
• Bleed the cooling system after installation to remove trapped air and restore proper circulation.
• Use the part number 14632 to confirm the correct Stant thermostat housing for the vehicle.

Quality Assurance

Stant manufactures cooling system components with durable materials and application-specific thermostat housings. Part number 14632 is engineered as an integrated thermostat housing assembly for the listed BMW fitments, supporting OE-temperature service requirements.