Thermostat BMW G20 G21 G30 G31 B57 Water Coolant Thermostat Housing 7552067

BMW G20 G21 G30 G31 B57 Thermostat Housing 7552067 is an original part from the Thermostats and Housings group, designed for the cooling system of modern BMW G-series diesel engines with the B57 engine. The precise design of the housing ensures stable thermostat seating, leak-proof connections, and proper coolant circulation under demanding operating conditions.

Specifications and technical data

• SKU: 8576289
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 8576289
• Substitutable numbers: 8576289, 11538576289, 8588890, 11538588890
• Category: Thermostats & Housings

Purpose and Function in the Cooling System

The thermostat housing in the B57 engine is responsible for the correct flow of coolant between the engine block, radiator, and other system components. A properly selected housing helps maintain the engine's stable operating temperature, which translates to correct engine performance, reduced fuel consumption, and protection against overheating.

For BMW G20, G21, G30, and G31 models, using the appropriate thermostat housing is particularly important due to the high density of components in the engine bay and the requirements for exhaust emissions and component durability.

Construction and Fit for the B57 Engine

The presented BMW thermostat housing has been designed for the specific architecture of the B57 engine, ensuring correct positioning of the spigots, mounting points, and flow channels. This allows for the preservation of the original cooling system geometry without the need for hose modifications or additional adapters.

Original manufacturing guarantees compatibility with sensors, seals, and mounting elements specified by the manufacturer, which facilitates installation and reduces the risk of leaks after replacement.

Benefits of Using an Original BMW Housing

Using the factory thermostat housing in the B57 engine allows for the cooling system's operating parameters to be maintained in accordance with BMW engineers' specifications. Key benefits include:

• secure fit to the cylinder head and other cooling system components,
• maintenance of the correct coolant flow direction and efficiency,
• reduced risk of leaks due to the proper geometry of sealing surfaces,
• consistency with factory engine temperature control maps.

For the user, this means stable engine operation, predictable warm-up, and reduced stress on other cooling system components.

Characteristics of a Used Part

The offered thermostat housing is a used part, sourced from disassembly. This type of OEM part retains its factory geometry and fit, while also offering an economical solution compared to a new component. It is a practical choice for maintenance repairs where a combination of quality and reasonable cost is essential.

If you are considering when to opt for a used part versus a new one, the article: New or Used? A Comparison of Costs and Quality of Car Parts may be helpful, offering detailed comparisons and practical advice.

BMW Thermostats and Housings – Expansion and Modernization

If you are planning a comprehensive engine area repair or modernization for your BMW and require other parts from the same group, such as additional housings, bodies, or mounting elements, check the available parts in the BMW Thermostats and Housings category.