Tie Rod BMW G20 G21 G22 i4 G26 Steering Linkage Outside Joint Left N/S 5A451A9

Tie Rod BMW G20 G21 G22 i4 G26 Steering Linkage Outside Joint Left N/S is a precision steering system component designed for installation on the driver's side. As part of the Steering rods and tie rod ends group, it ensures stable wheel handling and proper transfer of movement from the steering gear to the steering knuckle, which translates into safe and predictable vehicle behavior.

Specifications and technical data

• SKU: 5A451A9
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 5A451A9
• Substitutable numbers: 5A451A932, 5A451A9
• Location on the vehicle: Left
• Category: Tie Rods & Steering Linkages

Purpose and function in the steering system

The described tie rod end is designed for installation on the left side of BMW G20, G21, G22, electric i4, and G26 series vehicles. It is responsible for connecting the steering rod to the steering knuckle assembly, enabling precise wheel alignment and smooth transfer of steering movements to the front wheels.

Thanks to its properly selected geometry and ball joint design, this component supports:

• maintaining a stable driving path at higher speeds,
• correct vehicle response to steering inputs,
• even tire wear through proper wheel alignment.

Construction and technical properties

The tie rod end belongs to the group of components responsible for transferring lateral loads in the front suspension. The ball joint used is adapted to work in variable road conditions, and the design of the threaded working part allows for precise geometry adjustment during wheel alignment.

The component is prepared to work with the factory BMW steering system, which means:

• maintaining original mounting points,
• proper fitment to stock steering rods,
• consistency with factory handling and ride comfort parameters.

Installation side and fitment

The tie rod end is intended exclusively for installation on the left side of the vehicle. Correct placement on the vehicle is crucial for maintaining the proper geometry of the steering system and driving safety. Installation should be performed using appropriate tools and completed with a wheel alignment check and adjustment at a diagnostic station.

Due to its fitment for the specific generation of BMW G-platform vehicles, this component is particularly recommended when replacing a worn or damaged tie rod end in vehicles equipped with modern chassis systems, where high parameter repeatability is required.

Use of the used part

The offered tie rod end is a used component, which allows for an economical repair of the steering system while maintaining compliance with BMW factory specifications. Choosing such a solution is beneficial in the case of post-accident repairs, replacing individual suspension components, or restoring full efficiency of the chassis in vehicles used intensively.

Before installation, it is recommended to verify the condition of the component by a qualified service center, and after installation – to perform a full suspension geometry measurement to ensure stable handling and predictable vehicle behavior.

BMW steering system expansion

If you are planning a comprehensive repair or upgrade of the steering area in your BMW and need other components from the same group, such as additional tie rod ends, complete steering rods, or related connecting elements, check the available parts in the Steering rods and tie rod ends BMW category.

For those interested in the wider use of dismantled parts in tuning and modernization projects, practical tips on combining economy with maintaining safety standards can be found in the article Emotions and design – visual and mechanical tuning of a Seat using dismantled components.