Ford Transit Custom Steering Rack Power Steering Box Gear Pinion KK21-3D070-DJ

The Ford Transit Custom steering rack, a power steering unit, is an original steering system component designed for precise transfer of movement from the steering wheel to the wheels. Thanks to its factory Ford construction, this rack and pinion steering gear ensures proper steering geometry and stable vehicle behavior, even under the heavy loads characteristic of commercial vehicles.

Specifications and technical data

• SKU: RHD-KK21-3D070-DJ
• Mark: Ford
• Condition: Used
• OEM Part Number: KK21-3D070-DJ
• Substitutable numbers: KK21-3D070-DJ, KK213D070DJ, 2708832
• Part type: Steering Gear
• Category: Gearboxes, Racks & Pinions

Technical Characteristics of the Steering Rack

The offered steering rack belongs to the category of Steering Racks and Housings, meaning it is responsible for a crucial stage of trajectory control – from the steering column to the wheel hubs. The use of a hydraulic or electro-hydraulic power steering system (power steering) reduces the effort required for steering, improving maneuverability in the city, during parking, and when fully loaded.

The precisely manufactured pinion and rack work together with the power steering system, ensuring smooth transitions from the central to the extreme positions, without unwanted play or jerks. The design is adapted to the specifics of the Ford Transit Custom, taking into account its wheelbase, weight, and suspension characteristics.

Original Origin and Ford Fitment

The steering rack comes from the Ford parts line, guaranteeing the preservation of factory operating parameters for the steering system. Original manufacturing means:

• compliance with factory mounting points in the chassis and suspension,
• the correct steering ratio selected for the weight and character of the Transit Custom,
• compatibility with the standard power steering system and other steering column components.

This allows for installation similar to replacing a factory part, without the need for modifications or adaptations. This is important for both safety and the durability of the entire system.

Used Condition – Practical Benefits

The component is offered in used condition, representing a sensible compromise between repair cost and maintaining original manufacturing quality. In practice, this means the possibility of restoring proper steering system function without investing in a new part, while retaining the original Ford construction.

A used steering rack is a particularly attractive solution for post-accident repairs, mechanical damage (e.g., after hitting a curb), or wear and tear manifesting as play, knocking, or uneven steering operation.

Application in the Ford Transit Custom Steering System

This power steering rack is designed for installation in the Ford Transit Custom, where it is responsible for:

• stable vehicle handling at various speeds,
• precise response to steering wheel movements,
• proper damping of vibrations transferred from the suspension to the steering system.

A correctly selected and functional steering rack directly impacts driving safety, even tire wear, and driver comfort during long journeys and intensive commercial use.

Comparison of Used and Reconditioned Parts

When planning a steering system repair, many users wonder whether to choose a reconditioned or a used original part. For the Ford Transit Custom steering rack, a used OEM part often provides a natural fit and preserves factory operating characteristics. If you want to better understand the differences between these solutions and make an informed repair strategy choice, it's worth reading the guide: Reconditioned or Used Original – Which Part to Choose for Repair?

Expanding Steering System Repairs for Ford

If you are planning a comprehensive repair or upgrade of the steering system area in your Ford and need other components from the same group, such as other steering racks, housings, or related parts, check the available parts in the category Ford Steering Racks and Housings.