Smart Fortwo 451 Rear Axle Suspension Cross Member Stabilizing Arm A4513100122

The Smart Fortwo 451 Control Arm / Tie Rod / Suspension Beam for Rear Axle is a component from the Longitudinal Body Frame Parts and Brackets group, designed for the rear axle of a Smart vehicle. Engineered as a structural suspension component, it ensures stable body control and proper load transfer in the rear of the car.

Specifications and technical data

• SKU: A4513100122
• Mark: Smart
• Condition: Used
• OEM Part Number: A4513100122
• Substitutable numbers: A4513100122, A 451 310 01 22
• Location on the vehicle: Rear
• Part type: Subframe Connector
• Category: Frame Rails & Subframes

Purpose and Function in the Rear Axle Suspension

The control arm / tie rod / suspension beam for the rear axle in the Smart Fortwo 451 model is responsible for maintaining correct wheel geometry and providing a rigid, controlled connection between the body and the rear axle. As a structural element operating in the longitudinal axis, it stabilizes the vehicle's movement during acceleration, braking, and over uneven surfaces, limiting unwanted wheel displacement.

Its placement in the rear of the vehicle means this component directly influences:

• maintaining the alignment and stability of the rear body section,
• cooperation with other suspension elements in terms of vibration damping,
• even distribution of loads from the wheels to the vehicle's structure.

Structural Component of the Smart Body

This element belongs to the Longitudinal Body Frame Parts and Brackets group, meaning it serves a load-bearing and reinforcing role in the rear structure of the car. Thanks to its appropriately designed shape and mounting points, it works with the body frame and other brackets, creating a cohesive structural system.

This solution allows for:

• maintaining the rigidity of the rear of the vehicle while preserving the compact dimensions of the Smart Fortwo 451,
• precise longitudinal wheel guidance,
• reduction of stress at critical suspension mounting points.

Component Characteristics and Application Benefits

The control arm / tie rod / rear axle beam in the Smart Fortwo 451 is designed as a structural part that works with the vehicle's factory mounting points. This ensures predictable installation and body fitment according to the manufacturer's specifications.

Key benefits of using this component include:

• maintaining factory suspension geometry – proper alignment of the rear axle wheels affects handling and predictable vehicle behavior,
• cohesion with the body structure – the component functions as an integral part of the frame and brackets,
• proper transfer of operational loads – forces from the road surface are distributed to the vehicle's structure as designed by the manufacturer.

Selecting Parts Based on Technical Specifications

When selecting a control arm / tie rod / suspension beam for the rear axle of a Smart Fortwo 451, it is crucial to pay attention to compliance with manufacturer markings and its intended use for the specific model and placement on the vehicle. The product has assigned part numbers and interchangeable numbers, which facilitates verification of compatibility with a specific vehicle version.

It is advisable to use manufacturer markings to avoid installation issues and ensure proper cooperation with other suspension and body frame elements. This maintains structural integrity and predictable vehicle behavior in daily operation.

Expansion and Modernization of the Smart Rear Section

If you are planning a comprehensive repair or modernization of the rear section of your Smart and need other elements from the same group, such as additional brackets, longitudinal reinforcements, or frame structural components, check the available parts in the Smart Longitudinal Body Frame Parts and Brackets category.

To better plan maintenance and replacement of wear parts in your car, it is recommended to read the practical tips in the article TOP 10 Most Frequently Replaced Parts in Your Car, which helps in making informed decisions about vehicle upkeep.