Smart Fortwo 451 Wheel Knuckle Carrier Hub Axle Front Left N/S A4513320101

Smart Fortwo 451 Wheel Knuckle Carrier Hub Axle Front Left N/S is an original chassis component designed for the front axle on the driver's side. As part of the Wheel bearings, hubs and bushings group, it is responsible for stable wheel guidance, proper hub mounting, and precise maintenance of suspension geometry. Using this OEM Smart component allows for a technically correct repair without interfering with the vehicle's construction.

Specifications and technical data

• SKU: A4513300159-1
• Mark: Smart
• Condition: Used
• OEM Part Number: A4513300159
• Substitutable numbers: A4513300159, A 451 330 01 59, A4513320101, A 451 332 01 01
• Location on the vehicle: Front, Left
• Part type: Wheel Hub & Bearing Assembly
• Category: Wheel Bearings, Hubs & Seals

Purpose and function in the chassis system

The presented front left axle steering knuckle is a key component connecting the suspension, wheel hub, and steering system in the Smart Fortwo 451. It is responsible for:

• stable seating of the wheel hub and bearing,
• maintaining the correct position of the wheel relative to the body,
• transferring loads from the road to the suspension components,
• cooperating with the steering system for wheel turning.

Thanks to its factory geometry, the component ensures the maintenance of the suspension angles designed by the manufacturer, which translates into predictable vehicle handling and even tire wear.

Construction and fitment for Smart Fortwo 451

The steering knuckle has been designed specifically for the Smart Fortwo 451 platform, which guarantees full installation compatibility with factory mounting points for the shock absorber, control arm, hub, and steering system components. The load-bearing structure is prepared for use with the dedicated wheel bearing and hub, without the need for modifications or adaptations.

The original Smart origin means maintaining proper rigidity, appropriate material thickness, and compliance with factory tolerances, which is essential for chassis repairs in city vehicles operated on varied surfaces.

Condition, origin, and service application

The component comes from the used OEM parts group, which allows for combining reasonable repair costs with maintaining the manufacturer's original specifications. The steering knuckle is suitable both for standard replacement of a damaged component after a collision or wear, and for a comprehensive front suspension rebuild in a Smart Fortwo 451.

Thanks to the preservation of factory mounting points and geometry, installation in place of a damaged knuckle enables proper wheel alignment and suspension geometry control in accordance with service procedures.

Benefits of using an original Smart steering knuckle

Using an original front left steering knuckle in a Smart Fortwo 451 provides a number of practical benefits:

• maintenance of the suspension geometry designed by the manufacturer,
• secure fitment to factory hub, bearing, and control arm components,
• no need for modifications to other chassis components,
• ability to use existing mounting points for sensors and accessories (if present in the vehicle's configuration).

For workshops and users, this means predictable installation time, easier geometry adjustment, and reduced risk of vehicle handling issues after repair.

Smart wheel bearings, hubs and bushings – chassis system expansion

If you are planning a comprehensive repair or upgrade of the suspension and chassis area in your Smart and need other components from the same group, such as hubs, bearings, or mounting bushings, check out the available parts in the Smart wheel bearings, hubs and bushings category.

Used steering knuckle and safety – knowledge for an informed choice

When choosing a used suspension component, many drivers have doubts regarding the durability and safety of such a solution. To better understand how to assess the condition of used components and when their use is technically justified, it is worth reaching for a reliable source of information. Practical tips can be found in the article Used car parts: Myths and facts you need to know, which helps in making more informed service decisions.