Ford Focus Mk3 Fiesta Mk7 Thermostat Housing 1.6 Petrol BM5G-9K478-AB

Ford Focus Mk3 Fiesta Mk7 Thermostat Housing 1.6 Petrol is a component from the Thermostats and housings category, designed for Ford petrol engine cooling systems. It enables stable operation of the power unit within the required temperature range, which translates into safe operating conditions and proper interaction with the control electronics.

Specifications and technical data

• SKU: 1767974
• Mark: Ford
• Condition: Used
• OEM Part Number: 1767974
• Substitutable numbers: BM5G-9K478-AB, BM5G9K478AB, 1767974
• Fuel type: Petrol
• Part type: Thermostat Housing
• Category: Thermostats & Housings

Purpose and function in the cooling system

The thermostat housing in a 1.6 petrol engine is responsible for the precise routing of the coolant and the proper seating of the thermostat in the system. A correctly selected component ensures:

• maintenance of the optimal operating temperature of the petrol engine,
• proper direction of coolant flow between the engine block and the radiator,
• stable cooperation with sensors and other cooling system components.

As a result, the power unit operates within the temperature range specified by the manufacturer, which reduces the risk of overheating and inefficient operation when the engine is too cold.

Benefits of using an original Ford thermostat housing

The thermostat housing dedicated to the Ford Focus Mk3 and Ford Fiesta Mk7 has been designed for a specific petrol engine architecture. This translates into:

• secure fitment to mounting points and cooling system connectors,
• preservation of the factory coolant flow geometry,
• reduction of the risk of leaks resulting from inaccurate fitment of aftermarket replacements.

Choosing an original design from the Thermostats and housings category is particularly important in modern petrol units, where the cooling system works in conjunction with advanced engine management.

Characteristics of the used component

The offered thermostat housing is a used component, which allows for economical repair while maintaining the original manufacturer's specifications. This type of part is a good solution in situations where:

• the existing housing has cracked or suffered thermal deformation,
• there are leaks around the connectors or hose connections,
• a quick replacement of the component is necessary while keeping service costs reasonable.

A used thermostat housing allows for the restoration of proper coolant circulation without interfering with the engine structure, which is beneficial both in terms of technical performance and budget.

Selection by numbers and mounting compatibility

The component should always be selected based on vehicle identification data and part numbers, which guarantees compatibility with a specific 1.6 petrol engine version. In practice, this means matching:

• the layout of mounting points to the engine block,
• the diameters of the connectors working with cooling system hoses,
• the locations provided for temperature sensors or other auxiliary components.

Such an approach minimizes the risk of installation problems and ensures that the factory operating parameters of the cooling system are maintained.

Expanding the Ford cooling system – related parts

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

Expert support when choosing used components

When deciding to use pre-owned components in the drivetrain and cooling system, it is worth relying on reliable technical data and cost analysis. An expert guide describing facts and myths about used components, procedures for selection by OEM numbers, and example repair cost ratios may be helpful. Detailed information can be found in the article Why it is worth buying used gearboxes and engines – facts instead of myths.