The Mercedes W212 E 63 R231 SL 63 Cradle Subframe Rear Axle is an original structural component from the longitudinal body frame parts and brackets group, designed for the rear axle of selected Mercedes models. It ensures stable suspension mounting and precise guidance of the rear body section, translating into predictable vehicle behavior. This is a solution for users seeking factory fitment and consistency with the original suspension geometry.
Specifications and technical data
- SKU: A2313502101
- Mark: Mercedes (Genuine OE)
- Condition: Used
- OEM Part Number: A2313502101
- Substitutable numbers: A2313502101, A 231 350 21 01
- Location on the vehicle: Rear
- Category: Frame Rails & Subframes
Purpose and Function of the Rear Axle Cradle
The rear axle cradle, also known as a subframe or carrier, is a key load-bearing element of the rear suspension. It is responsible for:
- stable support of the rear axle and suspension components,
- maintaining correct wheel geometry in terms of toe and camber,
- transferring loads from the suspension to the body during acceleration, braking, and cornering,
- reducing vibrations and noise through appropriately designed mounting points.
For high-performance models, such as the E 63 or SL 63 versions, a correctly selected rear axle cradle is particularly important for maintaining structural rigidity and consistent handling during dynamic driving.
Construction and Role in the Body System
This component belongs to the category of longitudinal body frame parts and brackets, meaning it forms part of the vehicle's rear skeleton. The rear axle cradle:
- connects suspension mounting points into a single rigid structure,
- works with the frame and body to ensure adequate torsional rigidity,
- allows for the correct placement of components such as control arms, shock absorbers, and drivetrain elements (depending on vehicle configuration).
Thanks to its factory geometry and construction consistent with the manufacturer's solutions, the original mounting points are preserved, facilitating subsequent adjustment of wheel alignment and other suspension parameters.
Vehicle Placement and Installation Aspects
The presented cradle is designed for installation at the rear of the vehicle. Proper placement on the vehicle is crucial for:
- correct distribution of forces acting on the body,
- maintaining stability at high speeds and during sudden maneuvers,
- preserving ride comfort through proper damping of vibrations transmitted from the suspension.
When replacing this part, it is recommended to use professional service facilities equipped with the necessary tools for supporting the body, disassembling the suspension, and performing subsequent geometry adjustments.
Why Choose an Original Mercedes Cradle
An original Mercedes rear axle cradle ensures:
- factory fitment for specific models within the W212 E 63 and R231 SL 63 families,
- consistency with other structural components of the body and suspension,
- preservation of the designed rigidity and handling characteristics intended by the manufacturer.
For users considering different types of parts – original, aftermarket, or used – a guide describing the differences in cost and fitment may be helpful. More information can be found in the article original, aftermarket, or used car parts – what to choose.
Related Categories and Additional Information
If you are looking for other elements from the Longitudinal body frame parts and brackets category dedicated to this brand, check out the available Mercedes longitudinal body frame parts and brackets to select a complete structural solution for your vehicle.
When modernizing or repairing a vehicle, it is also worth ensuring proper lighting, especially in premium cars. Practical tips on selecting and replacing used LED and Xenon headlights can be found in the guide see more and better – a guide to selecting and replacing used LED and Xenon headlights.
