Stant 14612 Engine Coolant Thermostat / Water Outlet Assembly

Integrated Thermostat Housing for OE Cooling Service

Stant 14612 is an engine coolant thermostat and water outlet assembly built with a durable housing for long service life. The thermostat is integrated into the housing, which simplifies replacement on vehicles that use this OE-style design.

Compatible With BMW 540i, BMW X5, BMW Z8, BMW 740i, BMW 740iL, BMW 850Ci, BMW 750iL, BMW 850i, and Land Rover Range Rover applications that call for a 221-degree thermostat housing assembly.

Key Features

• Integrated thermostat housing design for a streamlined cooling system repair
• 221 degrees F thermostat temperature rating
• Durable housing material for long-lasting service
• Seal included for the listed applications
• Bypass plate diameter: 1.7 in.
• Flange diameter with seal: 1.52 in.
• Flange diameter without seal: 1.52 in.
• Height from flange to bottom: 1.8 in.

Product Details

This Stant Integrated Thermostat Housing, part number 14612, is built for BMW and Land Rover cooling system service where the thermostat and outlet are combined into one assembly. The integrated layout reduces the number of separate components to manage during replacement and supports a cleaner OE-style repair. Stant 14612 is specified at 221 degrees F and matches the listed fitments for BMW 540i, X5, Z8, 740i, 740iL, 850Ci, 750iL, 850i, and Land Rover Range Rover models.

The Stant Integrated Thermostat Housing line focuses on thermostat housing assemblies that combine the thermostat with the outlet body. That product-line approach is useful for vehicles that use a single service unit rather than a separate thermostat and housing arrangement.

Common Cooling System Issues This Part Addresses

• Cracked or leaking thermostat housing
• Sticking thermostat that affects coolant flow
• Incorrect engine operating temperature
• Coolant seepage at the housing seal surface
• Service delays caused by separate thermostat and housing replacement

Installation Notes and Tips

Verify the OE temperature specification before installation and confirm the flange and bypass dimensions match the original part. Clean the mating surfaces thoroughly, inspect the cooling system for contamination or old seal material, and refill the system with the correct coolant after installation. Bleed air from the system according to the vehicle service procedure to help prevent temperature fluctuations.

Fits 2003-2005 Land Rover Range Rover, N/A. Fits 1999-2003 BMW 540i, N/A. Fits 2000-2003 BMW X5, N/A. Fits 2003 BMW Z8, N/A. Fits 1999-2001 BMW 740i, N/A. Fits 1999-2001 BMW 740iL, N/A. Fits 1993-1995 BMW 850Ci, N/A. Fits 1988-1993 BMW 750iL, N/A. Fits 1991-1992 BMW 850i, N/A.

Quality Assurance

Stant manufactures cooling system components for OE-style service applications, and this thermostat housing assembly is built to support proper fit and temperature control for the listed vehicles. Part number 14612 is the reference to use when matching this assembly to the correct application.