BMW E81 E82 E87 E88 E90 E91 E92 Rear Axle Diff Carrier Cradle Subframe

BMW E81 E87 E90 E92 Rear Crossmember Subframe Cradle is a component from the group of longitudinal body frame parts and brackets, designed for the rear suspension of selected BMW 1 and 3 Series models. A refurbished crossmember provides a solid base for mounting suspension and drivetrain components, restoring proper body geometry and stability.

Specifications and technical data

• SKU: 6783713-1
• Mark: BMW (Genuine OE)
• Condition: Remanufactured
• OEM Part Number: 6783713
• Substitutable numbers: 33316783713, 6783713, 33314046517, 4046517, 33316770845, 6770845, 33314051649, 4051649, 33316757301, 6757301
• Location on the vehicle: Rear
• Category: Frame Rails & Subframes

Vehicle Application and Function

The rear crossmember, also known as a subframe or cradle, is a key structural element of the rear axle. It is responsible for:

• stable suspension mounting – for control arms, springs, shock absorbers, and other rear axle components,
• maintaining correct wheel geometry – which translates to predictable handling and even tire wear,
• transferring loads from the road to the body – during straight-line driving, cornering, and braking.

Its placement on the vehicle, specified as the rear, means the component operates in close proximity to the rear axle, forming part of the car's supporting structure in that area.

Technical Characteristics and Fitment

This crossmember belongs to the category of Longitudinal Body Frame Parts and Brackets, indicating it is designed as a load-bearing element with increased rigidity. The cradle's construction allows for precise positioning of suspension mounting points, which is crucial for:

• restoring factory driving parameters after a collision or corrosion of the old crossmember,
• eliminating incorrect wheel alignment resulting from structural deformation,
• reducing vibrations and noise transmitted to the body.

Proper fitment for specific BMW E81, E87, E90, and E92 models ensures compatibility with factory mounting points and standard suspension components.

Condition, Refurbishment Process, and User Benefits

The component is offered in a refurbished condition, meaning it has undergone a process to restore full functionality while adhering to safety requirements. In practice, this typically includes:

• verification of the load-bearing structure's geometry and rigidity,
• removal of corrosion and surface preparation for further use,
• inspection of mounting points for play, cracks, and deformation.

As a result, the rear crossmember can be an attractive alternative to new components, allowing for reduced repair costs while maintaining required performance parameters.

Application in Service Practice

Replacement of the rear cradle is recommended in situations such as:

• post-accident damage in the rear axle area,
• advanced corrosion of the load-bearing structure,
• inability to achieve alignment within the manufacturer's specified range, despite other suspension components being functional.

Identifying the correct crossmember for a specific BMW model is facilitated by manufacturer markings and reference numbers – it is advisable to compare these with your vehicle's specifications or consult with a mechanic.

BMW Longitudinal Body Frame Parts and Brackets

If you are looking for other elements from the BMW Longitudinal Body Frame Parts and Brackets category, check out the BMW longitudinal body frame parts and brackets available in our store to select the appropriate structural components for your model.

Technical Support and Knowledge about Used Parts

When planning repairs to suspension or load-bearing components, it is beneficial to understand the principles of safely using the refurbished and used parts market. Helpful information can be found in an article on our blog: how to save on original car parts for popular brands, where we discuss a practical approach to selecting such components.