BMW F10 F11 F12 Rear Axle Carrier Subframe Suspension Cradle Suspension 6799103

The BMW F10 F11 F12 F13 Subframe Cradle Beam Rear is a structural component from the category of longitudinal body frame parts and brackets, designed for the rear of the vehicle. It ensures stable mounting of suspension components and transfers loads from the axle to the body, which is crucial for the handling and safety of BMW F-series cars.

Specifications and technical data

• SKU: 6799103
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 6799103
• Substitutable numbers: 33316799103, 6799103, 33316776488, 6776488, 33316794665, 6794665, 6793802
• Location on the vehicle: Rear
• Category: Frame Rails & Subframes

Purpose and Function in the Vehicle

The rear subframe, also known as a cradle or beam, serves as a load-bearing suspension support in BMW F10, F11, F12, and F13 models. It is a key element of the rear structure that:

• stabilizes suspension geometry and maintains the correct position of control arms and other components,
• is responsible for the even distribution of forces acting on the rear axle during acceleration, braking, and cornering,
• influences handling precision and predictable vehicle behavior at higher speeds.

Its placement at the rear of the vehicle directly impacts ride comfort, vibration damping, and body stability.

Construction and Fitment for BMW F-Series

The rear cradle is designed as an original BMW component, compatible with factory mounting points in the body and the suspension system used in the F10/F11/F12/F13 platform. This ensures:

• precise fitment with the body frame and suspension elements,
• preservation of factory geometry parameters after correct installation and alignment,
• compatibility with manufacturer-intended mounting points for bushings, control arms, and other sub-assemblies.

Such precise fitment minimizes the need for modifications and allows for installation in accordance with BMW service documentation.

Benefits of Using an Original Rear Cradle

Replacing a worn or damaged rear subframe with a suitable component from the category of longitudinal body frame parts and brackets offers tangible operational benefits:

• Restoration of structural rigidity to the rear of the vehicle, improving the car's responsiveness to steering inputs.
• Reduction of excessive play in the suspension resulting from deformation of the old beam.
• Stable handling when the trunk is loaded or when carrying passengers in the rear seat.
• Improved interaction with safety systems (traction control, stability control systems) that rely on predictable axle behavior.

For BMW F-series owners, this translates to more confident handling, especially on the road and during dynamic driving.

Selection, Installation, and Service Aspects

When selecting a rear cradle for a BMW F10, F11, F12, or F13, pay attention to:

• model platform compatibility – the component must be designed for specific F-series body versions,
• correct vehicle placement – in this case, the rear of the body,
• the presence of appropriate interchangeable part numbers in the technical specifications, which facilitates compatibility verification.

Installation in a professional service center is recommended, using proper body support points and followed by suspension geometry alignment. This allows for full utilization of the beam's structural properties and prevents uneven tire wear or vehicle pulling.

BMW Longitudinal Body Frame Parts and Brackets – Extended Offer

If you also need other components from the BMW Longitudinal Body Frame Parts and Brackets category, check out our dedicated offer: BMW longitudinal body frame parts and brackets. This will help you easily assemble a set of structural components tailored to your model.

Preparing Your Car for Winter and Structural Components

Before the winter season, it's important to check not only the braking system and tires but also the condition of the vehicle's load-bearing structural components, such as subframes, cradles, and brackets. Corrosion or damage in these areas can worsen due to road salt and moisture. Practical tips on how to assess the condition of used components and which ones are worth inspecting before the frost can be found in the article: Winter Essentials: Which Used Car Parts Are Worth Checking and Replacing Before the Frost?.