Ford Transit Custom MK8 Electric Power Steering Rack Gear Pinion KK21-3D070-DG

Ford Transit Custom MK8 Electric Power Steering Rack Gear Pinion is an original Ford steering system component designed for vehicles equipped with electric power steering. This used steering rack from the Steering racks and housings category allows for a technical, cost-effective, and professional repair of the vehicle's steering system while maintaining factory performance characteristics.

Specifications and technical data

• SKU: RHD-KK21-3D070-DG
• Mark: Ford
• Condition: Used
• OEM Part Number: KK21-3D070-DG
• Substitutable numbers: KK21-3D070-DG, KK213D070DG, 2708832, KK21-3D070-DP, KK213D070DP
• Part type: Steering Rack
• Category: Gearboxes, Racks & Pinions

Technical specifications and application

The presented steering rack is a component of the electric power steering system, where the steering assistance force is generated by an electric motor integrated with the rack. This solution ensures precise transmission of steering input to the wheels, stable vehicle handling, and accurate control of the driving path under typical operating conditions of a commercial vehicle.

The component has been specifically designed for the suspension geometry and weight of the Ford Transit Custom MK8, which translates into appropriate gear ratios, predictable steering response, and correct interaction with the vehicle's safety systems.

Benefits of using an original steering rack

Using an original steering rack in the Ford Transit Custom MK8 allows for maintaining the factory operating parameters of the steering system. Proper fitment with the steering column, steering knuckles, and suspension components reduces the risk of play, improper steering return, or uneven tire wear.

Key advantages include:

• consistency with the factory Ford steering system design,
• proper cooperation with electric power steering and vehicle electronics,
• the possibility of professional repair without the need to adapt replacement parts of uncertain origin,
• maintaining predictable, stable vehicle handling in daily operation.

Condition of the component and assembly aspects

The steering rack is a used component, which allows for reduced repair costs while maintaining the original Ford design. Before installation, standard workshop verification is recommended, including checking for mechanical play, tightness, and correct operation across the full steering range.

Professional installation at a specialized service center enables correct wheel alignment and integration with the electric power steering system. After installation, it is recommended to perform computer diagnostics of the steering system and a test drive to confirm driving stability and uniform response to steering input.

Selection and compatibility of the steering rack

When selecting a steering rack for the Ford Transit Custom MK8, it is crucial to compare the part identification data and vehicle configuration (body version, type of steering system, equipment). The component should always be matched based on the vehicle's technical specifications and manufacturer information, which minimizes the risk of mechanical or electrical incompatibility.

In case of doubts regarding compatibility, it is worth consulting a service center or technical department, providing the vehicle data and information about the currently installed steering rack. This allows for selecting the part in a safe manner consistent with the manufacturer's requirements.

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 steering columns, tie rods, or rack housings, check the available parts in the Ford Steering racks and housings category.

For drivers interested in a broader view of drivetrain solutions and how steering systems work with various types of all-wheel drive, an article describing the design and servicing of AWD systems may be helpful – you can find it here: xDrive, 4Matic, quattro or 4Motion – a comparison of AWD systems from BMW, Mercedes, Audi, and VW.