Ford Fiesta ST Mk8 Brake Vacuum Pump 1.5 EcoBoost Petrol YZJA HX7G-2A451-AA

Ford Fiesta ST Mk8 Brake Vacuum Pump 1.5 EcoBoost Petrol is an original vacuum system component designed for the petrol engine, ensuring stable assistance for vehicle systems that require constant vacuum. Thanks to the factory Ford design, the pump maintains proper operating parameters, and its use allows for predictable performance of the brakes and other vacuum-operated components. This is a practical solution for users looking for a proven, used component with maintained functionality.

Specifications and technical data

• SKU: 2390492
• Mark: Ford
• Condition: Used
• OEM Part Number: 2390492
• Substitutable numbers: HX7G-2A451-AA, HX7G2A451AA, 2390492, HX7G2A451BA, HX7G-2A451-BA
• Fuel type: Petrol
• Part type: Vacuum Pump
• Category: Vacuum Pumps

Purpose and role in the vacuum system

The presented vacuum pump has been designed to work with the 1.5 petrol engine in the Ford Fiesta ST Mk8 model. It is responsible for generating stable vacuum necessary for, among other things, the proper operation of the brake booster and other components that require constant, controlled vacuum regardless of the current engine speed.

Thanks to its fitment for the specific engine unit and system architecture, installing this pump allows for restoring the correct operation of the vacuum system without the need for any modifications. The factory Ford design promotes maintaining tightness, adequate efficiency, and proper operating characteristics across the full range of engine loads.

Benefits of using an original vacuum pump

Using an original vacuum pump in the Ford Fiesta ST Mk8 brings a number of practical operational benefits:

• maintaining the vacuum parameters specified by the manufacturer throughout the entire operating range of the petrol engine,
• consistency with the factory mounting and connection system, which facilitates installation and service,
• reducing the risk of improper brake booster operation resulting from insufficient vacuum,
• compatibility with the factory vacuum system architecture in the ST Mk8 version.

As an element from the Vacuum pumps group, this product is important wherever a stable source of vacuum independent of the instantaneous operating conditions of the engine is required. This is particularly important in dynamically driven cars, such as the Fiesta ST, where the braking system and other systems must react predictably.

Product characteristics and fitment

The vacuum pump intended for the Ford Fiesta ST Mk8 has been developed with the petrol engine in mind, which is significant for the characteristics of the generated vacuum and the method of driving the pump. The design takes into account the specifics of this unit, thanks to which the component works correctly with factory hoses, valves, and accessories.

The product comes from the Ford brand, which means it complies with factory quality and assembly standards. This facilitates the selection of parts by OEM and reference numbers based on manufacturer documentation or service catalogs, and also minimizes the risk of compatibility issues during replacement.

Condition, application, and service aspects

The offered vacuum pump is a used item, which represents a favorable compromise between the purchase cost and maintaining the original manufacturer's specification. For many users and workshops, this is a reasonable solution for repairs where fitment and predictable component behavior in the existing system are key.

When planning a vacuum pump replacement, it is worth paying attention to:

• the condition of vacuum hoses and connectors,
• the tightness of the entire vacuum system,
• proper bleeding and testing of the brake booster operation after installation.

Such an approach allows for fully utilizing the potential of the installed pump and reducing the risk of the fault returning due to other system components.

Technical support, selection, and additional materials

When selecting a vacuum pump for a specific Ford Fiesta ST Mk8 configuration, it is helpful to use OEM numbers and interchangeable numbers, which allow for precisely verifying the compatibility of the part with a given vehicle. In case of doubt, it is worth referring to service documentation or consulting with a specialized workshop.

To better understand the relationships between pumps, injectors, and other power supply elements, an article describing the construction and diagnostics of the fuel system may be helpful – you can find it here: Fuel system – injectors, pumps, and fuel tank: maintenance and regeneration.

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 pumps, vacuum hoses, or control valves, check the available parts in the Ford vacuum pumps category.

More practical tips on the cost-effective use of used OEM components and ways to reduce service costs can be found in the guide: Rising repair costs and the boom in used parts – how to save on car service?.