BMW 1 3 Series F20 F21 F30 LCI M140i 340i Engine Heat Management Module 7642854

The BMW F20 F21 LCI M140i Thermostat Housing is an original cooling system component designed for the facelifted F20/F21 1 Series models, specifically the M140i version. This precise thermostat housing ensures stable engine operation by maintaining optimal working temperature and supporting trouble-free performance. It is particularly recommended for cooling system repairs where a secure fit and adherence to factory engine operating parameters are crucial.

Specifications and technical data

• SKU: 7642854-1
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7642854
• Substitutable numbers: 11537642854, 7642854, EM
• Category: Other Engine Parts

Purpose and Function in the Cooling System

The thermostat housing, specifically designed for the M140i F20/F21 LCI, is responsible for the correct flow of coolant and works in conjunction with the thermostat to regulate fluid circulation. A properly selected component allows for:

• stable engine operating temperature across the full load range,
• correct pressure within the cooling system,
• compatibility with the factory system of hoses and pipes.

By using an original housing, the geometry of the connections and compatibility with standard components are maintained, which reduces the risk of leaks and installation issues.

Compatibility and Fitment for BMW

The presented BMW thermostat housing has been specifically designed for the engine used in the M140i, ensuring the correct positioning of the thermostat relative to the cooling channels. Proper fitment for the specific engine version:

• facilitates installation in the engine bay without modifications,
• ensures a correct connection with factory hoses,
• reduces the risk of installation errors and subsequent leaks.

Choosing a component that matches the factory specification is particularly important in high-performance vehicles where the cooling system operates under greater thermal load.

Component Characteristics and Service Application

The thermostat housing in this model acts as a junction connecting several sections of the cooling system, therefore its condition directly impacts the sealing and efficiency of the entire system. The use of this component is recommended in situations such as:

• repair after a coolant leak in the vicinity of the thermostat,
• preventive maintenance for vehicles with higher mileage,
• restoring the factory configuration after previous modifications.

A correctly chosen housing allows for the restoration of proper coolant circulation, which is important for both engine durability and performance consistency.

Condition and Benefits of Using an Original Part

The product is offered in a used condition, allowing for economical repairs while maintaining the original construction. Choosing a factory component over an aftermarket alternative helps maintain consistency with other cooling system components and minimizes the risk of fitment issues. This is a practical solution for owners who wish to keep their car in a configuration close to the factory original.

If you are planning a comprehensive repair or upgrade of the engine area in your BMW and need other parts from the same group, such as housings, mounts, or additional mounting elements, check the available parts in the Other BMW category.

Technical Support and Car Project Development

Selecting the appropriate cooling system components is particularly important in high-performance cars, where stable engine operating temperature affects unit durability and performance repeatability. For drivers interested in comparing technical solutions used in sporty versions of various brands, including engine, braking, and chassis systems, the article: Audi RS vs. Other Models – What Lies Under the Hood and Chassis? may be helpful, as it illustrates how manufacturers design key systems in high-power vehicles.