URO 11531440192 Engine Coolant Thermostat Seal

BMW Coolant Thermostat Seal

The URO 11531440192 engine coolant thermostat seal is an OE-style O-ring made for BMW cooling system service. It uses EPDM material and OE thermostat seal dimensions to support a proper seal in high-heat, continuous coolant environments.

Use this seal when servicing the thermostat on select BMW 760i xDrive, M8, X7, M5, X6, XM, M4, M760i xDrive, 650i, 750i, 760Li, 545i, 645Ci, 745i, and related models.

Key Features

• EPDM construction for coolant and heat resistance
• O-ring style seal with OE profile for proper sealing
• Outside diameter: 73.16 mm
• Thickness: 2.26 mm
• Guaranteed fitment for listed BMW applications
• Part number: 11531440192

Detailed Description

URO 11531440192 is an engine coolant thermostat seal built to match OE thermostat seal dimensions and profile. The EPDM material is selected for exposure to engine heat and constant coolant contact, helping maintain a secure seal at the thermostat housing. This makes it a practical replacement for BMW cooling system repairs where sealing integrity is critical. This part cross-references MAHLE C32504 for the same application.

Compatible With BMW cooling system service on models including 2023-2024 BMW 760i xDrive, 2022-2024 BMW M8, 2020-2024 BMW M8 Gran Coupe, 2023-2024 BMW X7, 2018-2023 BMW M5, 2008-2023 BMW X6, 2023 BMW XM, 2021-2022 BMW M4, 2017-2022 BMW M760i xDrive, and additional 2002-2019 BMW 5, 6, 7, and X5/X6 applications. Part number 11531440192 is also referenced by Genuine 11531440192 and Victor Reinz 41-77548-00.

What It Helps Fix

• Coolant seepage at the thermostat seal
• Leaks caused by a flattened or hardened O-ring
• Loss of sealing after thermostat service
• Cooling system odor or residue around the thermostat housing
• Repeat repairs from an incorrect seal profile

Installation Notes

Inspect the thermostat housing and sealing surfaces before installation. Clean all mating surfaces thoroughly, and replace the seal only with the correct OE-style profile and dimensions. Verify the application by year, make, and model before service; this seal is listed for BMW 760i xDrive, M8, X7, M5, X6, XM, M4, M760i xDrive, 650i, 750i, 760Li, 545i, 645Ci, and 745i applications.

Quality Assurance

URO manufactures this thermostat seal to OE dimensions and profile for proper sealing performance. The EPDM material is specified for durability in engine heat and continuous coolant exposure. Backed by a 24 Month Unlimited Mileage Warranty.