Mercedes SLK 55 R171 Rear Subframe AMG Cradle Axle Beam Mounting Cross Member

The Mercedes SLK 55 R171 AMG rear suspension subframe is an original body structural component, serving as a load-bearing element for the rear axle. As part of the longitudinal frame and bracket components, it ensures stable suspension mounting and predictable vehicle behavior during dynamic driving.

Specifications and technical data

• SKU: A1713501408
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1713501408
• Substitutable numbers: A1713501408, A 171 350 14 08
• Location on the vehicle: Rear
• Category: Frame Rails & Subframes

Purpose and Function in the Vehicle

The presented AMG rear subframe / auxiliary frame is designed for installation in the rear of the Mercedes SLK 55 R171 model. This component provides a rigid base for mounting control arms, hubs, the differential, and other rear axle components, which is crucial for:

• maintaining suspension geometry under load and during braking,
• precise vehicle handling in corners, especially in higher-powered versions,
• even distribution of forces from the suspension to the body structure.

Thanks to its design developed by the vehicle manufacturer, the subframe is optimized for stiffness, weight, and compatibility with the factory AMG suspension.

Construction and AMG Fitment

As a component in the longitudinal body frame parts and brackets category, this rear subframe has been specifically designed for the SLK 55 R171 AMG version. This means that:

• mounting points are consistent with the factory suspension and body layout,
• spacing and geometry match the specifications of the AMG sports version,
• structural rigidity is adapted to higher loads resulting from increased power and torque.

This precise fitment allows for the preservation of the handling characteristics intended by Mercedes engineers, without the need for modifications or installation compromises.

Condition, Origin, and Benefits of Using a Used Part

The offered subframe is an original used part from a dismantled vehicle. In practice, this means retaining factory material quality and construction while reducing repair costs compared to a new component. For workshops and owners, this translates to:

• real savings on rear suspension repairs,
• guaranteed fitment to factory mounting points,
• no need for adaptation or body modifications.

If you want to better understand how the availability of used OEM parts affects service time and cost, check out the article: Availability of Used OEM Parts On-Demand vs. Workshop Repair Time.

Application in Repairs and Upgrades

The AMG rear suspension subframe for the SLK 55 R171 is suitable for standard post-accident repairs, as well as for comprehensive rebuilds or modernization projects. It is particularly useful when:

• the original auxiliary frame has suffered mechanical damage or corrosion,
• it is necessary to restore factory suspension geometry after bodywork repairs,
• the priority is to maintain AMG handling characteristics without using aftermarket parts of uncertain specifications.

A correctly chosen rear axle subframe facilitates subsequent alignment and camber adjustments, contributing to vehicle stability and even tire wear.

Other Longitudinal Body Frame Parts and Brackets Mercedes

If you are also looking for other longitudinal body frame parts and brackets Mercedes for similar repair or modernization applications, check out our dedicated category: longitudinal body frame parts and brackets Mercedes. This will help you easily select cohesive structural components for your project.