Ford Transit MK8 Power Steering Reservoir Bottle Tank 2.2 TDCI BK21-3R700-AB

Ford Transit MK8 Power Steering Reservoir Bottle Tank 2.2 TDCI is a hydraulic system component designed for diesel-powered vehicles, ensuring a stable supply of fluid to the power steering pump. As part of the Power steering pumps category, the reservoir is responsible for the safe storage of the working medium and its proper circulation within the steering system. Using this original Ford brand component allows for an economical yet technically sound repair of the power steering system.

Specifications and technical data

• SKU: BK21-3R700-AB
• Mark: Ford
• Condition: Used
• OEM Part Number: BK21-3R700-AB
• Substitutable numbers: 1852947, BK21-3R700-AB, BK213R700AB
• Fuel type: Diesel
• Category: Power Steering Pumps

Purpose and function in the power steering system

The described power steering reservoir is dedicated to hydraulic systems in the Ford Transit MK8 with a 2.2 TDCI diesel engine. Its task is to maintain the appropriate fluid level, stabilize pre-pressure, and filter mechanical impurities, which translates into smooth operation of the power steering pump and comfortable, effortless vehicle handling.

A correctly selected reservoir minimizes the risk of cavitation in the pump, reduces fluid foaming, and supports the uniform operation of the steering gear. As a result, the system is less prone to overheating, and the working components maintain a longer service life.

Benefits of using an original Ford reservoir

Using an original Ford component in the power steering system ensures:

• factory fitment for mounts and hoses in the Ford Transit MK8,
• correct geometry of the connection ports,
• appropriate working capacity adapted to the pump and steering gear,
• consistency with the system's operating parameters in diesel vehicles.

Thanks to this, installation is efficient, without the need for system modifications, and the hydraulic system retains the characteristics intended by the vehicle manufacturer. This solution is particularly beneficial for fleet maintenance and repairs where repeatability and predictability of the result are important.

Operational and installation characteristics

The used power steering reservoir for the Ford Transit MK8 is a practical choice for maintenance repairs when the existing component has suffered mechanical damage, leaks, or wear resulting from years of operation. The reservoir's construction is adapted for use in the engine compartment of a diesel unit, taking into account typical thermal and vibration loads.

During replacement, it is recommended to:

• check the condition of return and supply hoses,
• replace the power steering fluid with new fluid meeting the parameters recommended for diesel systems,
• bleed the system after installation to avoid pump noise and uneven steering gear operation.

A service procedure carried out in this way allows for fully utilizing the potential of the installed reservoir and reducing the risk of repeated interventions in the near future.

Integration with the fuel system and vehicle hydraulics

In diesel-powered vehicles, it is important to coordinate the operation of the fuel and hydraulic systems to ensure stable operating conditions for the entire powertrain. To deepen your knowledge on diagnostics and component selection based on manufacturer markings, it is worth reading the article Fuel system – injectors, pumps, and fuel tank: maintenance and regeneration, which discusses, among other things, the principles of identifying parts by OEM numbers and good service practices.

Selection, condition, and purchase of a used reservoir

When choosing a used power steering reservoir for the Ford Transit MK8, it is crucial to match it to the specific diesel engine version and ensure compatibility with the mounting system and hose routing. It is worth paying attention to the tightness of the housing, the condition of the ports, and the absence of visible mechanical damage.

If you are planning a comprehensive repair or upgrade of the steering area in your Ford and need other components from the same group, such as pressure hoses, return lines, or the hydraulic pumps themselves, check the available parts in the Ford Power steering pumps category.

Additional tips on the safe selection of components from the secondary market, including power steering elements, are provided in the guide Buying used car parts – common mistakes when choosing tuning parts, which helps avoid typical problems when investing in used subassemblies.