Ford Focus ST-3 Mk3 Engine Fuel Injection Tube Pipe 2.0 EcoBoost CJ5E-9J323-BD

Ford Focus ST-3 Mk3 Engine Fuel Injection Tube Pipe 2.0 EcoBoost is an original fuel system component, designed specifically for the 2.0 EcoBoost engine in the sporty ST-3 version. Thanks to its factory origin from Ford, you maintain proper engine performance parameters, stable fuel pressure, and compatibility with the factory ECU calibration. This is a practical solution for users who want to maintain the integrity of the entire fuel injection system without compromising on quality.

Specifications and technical data

• SKU: 2123422
• Mark: Ford
• Condition: Used
• OEM Part Number: 2123422
• Substitutable numbers: 2123422, CJ5E-9J323-BC, CJ5E-9J323-BD, CJ5E9J323BD
• Part type: Fuel Rail (Ramp)
• Category: Additional Fuel Injection Parts

Purpose and role in the fuel injection system

The described fuel injection tube is a component responsible for precisely delivering fuel to the injectors in the 2.0 EcoBoost engine used in the Ford Focus ST-3 Mk3. A correctly selected component of this type helps maintain:

• stable fuel pressure across the entire engine load range,
• even fuel supply to all cylinders,
• proper operation of the fuel injection system during dynamic driving. By using an original solution from the Other fuel injection system parts category, you reduce the risk of leaks, power drops, and problems with starting or uneven engine operation.

Original origin and fitment

The fuel injection tube comes from the Ford production line, which means full structural compatibility with the factory fuel system in the Focus ST-3 Mk3. The element has been designed for the specific parameters of the 2.0 EcoBoost engine, ensuring that it:

• fits original mounts and connectors in the engine bay,
• works with the factory high-pressure fuel pump and injectors,
• maintains the fuel routing geometry intended by the manufacturer. Such fitment translates into trouble-free installation and the preservation of stock engine performance characteristics, which is particularly important in turbocharged units sensitive to any deviations in fuel supply.

Characteristics of the used component

The offered fuel injection tube is a used component, which in practice means the possibility of an economical repair of the fuel system while maintaining the original manufacturer's specifications. Choosing this solution allows you to:

• reduce service costs compared to a new part,
• maintain the factory design of the fuel injection system,
• avoid fitment issues typical of aftermarket replacements of uncertain origin. For Ford Focus ST-3 Mk3 users who prioritize rational operating costs while maintaining correct engine performance parameters, this is a practical and technically consistent choice.

Support with selection and cost optimization

The selection of fuel injection system components should always be based on OEM data and the actual purpose of the part to avoid compatibility issues. If you want to better plan the service of your Ford and understand how to combine original components with reasonable repair costs, check out the guide Economical Ford operation – where to look for the greatest savings in mechanical and body repairs.

Expanding the fuel injection system in your Ford

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 fuel lines, fuel rails, or additional fuel system connectors, check out the available parts in the category Other Ford fuel injection system parts.