BMW F01 F02 F06 F12 F13 N55 Engine Thermostat Coolant Housing Unit 7605431

BMW F01 F02 F06 F12 F13 N55 Engine Thermostat Coolant Housing Unit is an original component from the Thermostats and housings group, designed for precise control of the engine's operating temperature. The offered subassembly comes from disassembly, which allows for maintaining the factory characteristics of the cooling system while optimizing service costs.

Specifications and technical data

• SKU: 7605431
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7605431
• Substitutable numbers: 7605431, 11537605431, 8671514, 11538671514
• Part type: Thermostat
• Category: Thermostats & Housings

Purpose and function in the N55 engine

This thermostat and housing assembly is designed to work with the N55 engine used in the BMW F01, F02, F06, F12, and F13 series, where it is responsible for controlling the coolant circulation between the engine block and the radiator. A properly functioning thermostat maintains a stable operating temperature, which promotes efficient engine performance, reduces fuel consumption, and lowers the risk of overheating under load.

The factory design of the housing ensures proper routing of cooling channels and compatibility with original connectors and mounts in the engine bay. Thanks to this, the element is suitable both for standard maintenance replacements and for repairs following a cooling system failure.

Construction and advantages of the original BMW solution

The offered thermostat with housing is a BMW brand part, which means maintaining factory parameters for opening and closing the thermostatic valve and full compatibility with the engine control unit software. Using the original housing minimizes the risk of leaks, fitment issues, and improper coolant flow.

Key benefits of using the original subassembly include:

• maintaining the thermal characteristics of the N55 engine as intended by the manufacturer,
• secure fitment to factory mounting points and cooling hoses,
• reduction of the risk of controller errors resulting from incorrect thermostat operating parameters,
• consistency with other cooling system components of the BMW F-series.

Condition, origin, and installation aspects

The item is offered as used, which in the case of original BMW components allows for combining high manufacturing quality with cost-effective repairs. This type of part is particularly attractive for servicing premium cars, where new OEM components can be difficult to obtain or significantly more expensive.

Thanks to the preservation of the factory housing and connection geometry, installation proceeds in a manner similar to the service procedure provided by the manufacturer. In practice, this means:

• no need for cooling system modifications,
• easier system bleeding after replacement,
• possibility of using standard workshop tools.

Part selection by number and compatibility

To ensure fitment for a specific engine version and body year, it is worth verifying compatibility by the OEM part number and available interchangeable numbers. This approach helps avoid installation problems and guarantees that the thermostat with housing will work with the existing cooling system and vehicle electronics.

In the product description, you will also find the SKU designation, which facilitates communication with store support and quick retrieval of this exact item in the warehouse system.

Service expansion and additional information

If you are planning a comprehensive repair or upgrade of the engine area in your BMW and need other elements from the same group, such as additional housings, thermostat bodies, or related cooling modules, check the available parts in the BMW Thermostats and housings category.

If you want to better understand why original used components for premium brands are becoming an increasingly popular choice for repairs, check out the article Crisis in the new parts market? Why in 2026 used originals for premium cars (BMW, Mercedes, Porsche) are the hottest trend, where you will find practical arguments in favor of such a solution.