URO 11531436386 Engine Coolant Thermostat

Engine Coolant Thermostat for BMW and Land Rover

This URO engine coolant thermostat is built for direct replacement in select BMW and Land Rover applications. It uses an OE-style high-flow design to help maintain proper coolant regulation, with a housing assembly made to factory dimensions for straightforward bolt-on installation.

• OE-style thermostat housing assembly for direct replacement
• Opening temperature: 105 degrees
• Aluminum housing for temperature stability
• Temperature sensor included where applicable
• Silver finish
• Guaranteed fitment for listed applications
• 24 Month Unlimited Mileage Warranty

Fitment and Cross Reference

Compatible with 1998-2003 BMW 540i, 1999-2001 BMW 740i, 1999-2001 BMW 740iL, 2000-2003 BMW X5, 2003 BMW Z8, and 2003-2005 Land Rover Range Rover. This part cross-references Dorman OE Solutions 902-819 and Gates 33935 for the same application. Part number 11531436386 is also referenced as 11531436386 for catalog matching.

How It Works

The thermostat helps regulate engine coolant flow so the engine can reach and hold the correct operating temperature. On BMW 540i, BMW X5, and Range Rover cooling systems, a worn thermostat housing or inaccurate thermostat opening point can affect temperature control, coolant circulation, and heater performance. This URO 11531436386 replacement is built with an aluminum housing and OE-style dimensions to support reliable sealing and hose connection alignment.

Common Problems This Part Can Address

• Engine running too cool or too hot
• Temperature fluctuations during normal driving
• Coolant leaks at the thermostat housing
• Cracked or warped plastic housing concerns
• Fault codes related to coolant temperature regulation

Installation Notes

Verify the vehicle’s production date and engine application before installation, especially for 1998-1999 BMW 540i and 1999 BMW 740i/740iL models with a production date from 09/98. This thermostat assembly does not include a gasket or seal, and it does not include a bleeder screw. Clean the mating surfaces thoroughly and confirm the temperature sensor connection where applicable before refilling and bleeding the cooling system.

Quality Assurance

URO manufactures this thermostat housing assembly to factory housing dimensions for dependable fit and hose alignment. The aluminum construction is temperature-stable to help resist warping or cracking, and the part is backed by a 24 Month Unlimited Mileage Warranty.