Smart Fortwo 451 Rear Axle Cross Member Beam Suspension Frame A4513100222

Smart Fortwo 451 Rear Axle Cross Member Beam Suspension Frame is an original structural suspension component designed for installation in the rear section of the vehicle body. As a part of the Longitudinal body frame parts and brackets group, it is responsible for stable suspension support and proper load transfer to the vehicle structure. Using this OEM component allows for a technically correct repair of the rear axle without interfering with the body geometry.

Specifications and technical data

• SKU: A4513100222
• Mark: Smart
• Condition: Used
• OEM Part Number: A4513100222
• Substitutable numbers: A4513100222, A 451 310 02 22
• Location on the vehicle: Rear
• Part type: Subframe
• Category: Frame Rails & Subframes

Purpose and function in the vehicle

The rear axle beam in the Smart Fortwo 451 model is a key element of the body skeleton in the rear area. Its function is to:

• rigidly connect the rear suspension mounting points,
• transfer forces from the wheels to the body structure during driving and braking,
• maintain the correct geometry of the suspension and vehicle axle,
• ensure stable mounting of additional components in the rear part of the car.

Thanks to the factory design tailored to the Smart Fortwo 451, this element allows for maintaining the handling characteristics and predictable vehicle behavior designed by the manufacturer.

Construction and fitment for Smart Fortwo 451

The Smart Fortwo 451 Rear Axle Cross Member Beam Suspension Frame has been designed specifically for the Smart Fortwo 451 platform, which guarantees precise fitment with body mounting points and compatibility with factory suspension components. The load-bearing structure is prepared to work with original brackets, bushings, and mounts, without the need for modifications or adaptations.

Its placement in the rear zone of the vehicle promotes even load distribution, and the use of an original Smart component allows for compliance with service documentation and the manufacturer's repair procedures.

Condition, origin, and benefits of choosing OEM parts

The offered rear axle beam is an original Smart brand component sourced from dismantling, which means it retains factory geometry and mounting points. Using an OEM component is a beneficial solution in situations where:

• mechanical damage to the rear suspension has occurred (e.g., after a collision or hitting an obstacle),
• there are axle geometry issues caused by deformation of load-bearing elements,
• it is necessary to replace the entire beam assembly instead of performing a local repair.

Using an original beam reduces the risk of fitment issues typical of aftermarket parts of uncertain origin and facilitates subsequent wheel alignment and suspension geometry adjustment.

Application in rear suspension repairs

The Smart Fortwo 451 Rear Axle Cross Member Beam Suspension Frame is suitable for both post-accident repairs and comprehensive renovation of the rear chassis section. In workshop practice, this element is replaced, among other situations, when:

• corrosion weakening the structural load-bearing capacity is detected,
• permanent bending occurs after an impact to the rear of the vehicle or a curb,
• mounting points for wishbones or other suspension components are damaged.

Selecting the correct beam dedicated to the Smart Fortwo 451 allows for restoring proper vehicle handling, reducing tire wear, and ensuring stability during cornering and braking.

Repair expansion and related Smart components

If you are planning a comprehensive repair or upgrade of the rear body load-bearing zone in your Smart and need other elements from the same group, such as additional brackets, reinforcements, or longitudinal structural profiles, check the available parts in the Longitudinal body frame parts and brackets Smart category.

For larger service or modernization projects, it is also worth expanding your knowledge about selecting components from the secondary market. In the context of analyzing the cost-effectiveness and durability of used parts, an article comparing popular BMW engines may be helpful – you can find it here: BMW N47 vs M57 / M57N / M57N2 – ranking of legendary diesels.

Summary

Smart Fortwo 451 Rear Axle Cross Member Beam Suspension Frame is a technically matched, original structural component from the Longitudinal body frame parts and brackets group, designed for installation in the rear of the vehicle. Choosing this used OEM component allows for a professional repair of the rear suspension, preservation of factory geometry, and seamless integration with other Smart Fortwo 451 components, which translates into safe and predictable vehicle operation.