BMW 3 E91 325i N52 Rear Left N/S Suspension Leg Axle Brake Hub Automatic

BMW 3 E91 325i N52 Rear Left N/S Suspension Leg Axle Brake Hub Automatic is a practical solution for workshops and users looking for a proven part from dismantling. This used suspension replacement kit allows for a quick and consistent repair of the rear axle on the driver's side, reducing the risk of geometry and compatibility issues.

Specifications and technical data

• SKU: 6774807-21
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 6774807
• Substitutable numbers: 33326774807, 6774807, 34216768697, 6768697, 33207561795, 7561795, 33217559085, 7559085, 34216855007, 6855007, 33326757735, 6757735, 34216764651, 6764651, BG
• Location on the vehicle: Rear, Left
• Gearbox type: Automatic
• Category: Suspension Component Replacement Kits

Application and compatibility

The presented component is designed for the BMW 3 Series E91 325i with the N52 engine, in a version equipped with an automatic transmission. The assembly is mounted on the rear axle on the left side, which is important when selecting parts regarding suspension geometry and the routing of brake lines and sensors.

Because this is an original component from the Suspension replacement kits group, the factory characteristics of the suspension and braking system are maintained, which facilitates maintaining predictable vehicle handling and proper cooperation with safety systems.

Suspension assembly construction and function in the vehicle

The rear left suspension assembly with the hub and brake components creates a rigid, matched structure that transfers loads from the wheel to the body and works with other rear axle components. Integrating several sub-assemblies into one module facilitates installation and reduces the number of service operations, which is particularly important for post-accident repairs or replacing components after operational wear.

Proper fitment for the automatic transmission version ensures consistency with the factory drivetrain, which is significant for the operation of traction control and stability systems. Proper geometry and mounting points help maintain correct wheel alignment, even tire wear, and vehicle stability during braking and acceleration.

Benefits of using an original used assembly

Choosing an original, used suspension assembly for a BMW E91 allows you to combine reasonable repair costs with maintaining factory performance parameters. Using a complete module reduces the risk of incompatibility between individual elements and also shortens the time required for removal and installation in the workshop.

For cars used on a daily basis, it is important that the suspension and braking system work stably and predictably. Using the correct assembly from the same type of rear axle construction helps maintain ride comfort, proper shock absorption, and driving confidence at higher speeds.

Professional use and service tips

Before installation, it is recommended to perform a standard check of the condition of cooperating elements, such as bushings, links, or brake lines, in order to restore full efficiency of the rear axle in one operation. Replacing the complete assembly is particularly beneficial in situations where mechanical damage has occurred within the hub, suspension arm, or mounts, as it allows for the restoration of factory geometry without the need to assemble the system from many individual parts.

To maximize the trouble-free service life of used components, it is worth following the recommendations regarding maintenance and regular inspections. Practical advice in this area can be found in the article How to extend the life of used car parts?, which describes, among other things, good practices for handling suspension and dismantled parts.

Expanding rear axle repairs in BMW

If you are planning a comprehensive repair or upgrade of the rear axle suspension zone in your BMW and need other elements from the same group, such as additional arms, brackets, or complete hub modules, check the available parts in the BMW suspension replacement kits category.