BMW 3 Series E90 330d M57N2 Front Left N/S Spring Strut Brake Suspension Leg

BMW E90 330d M57N2 Left Strut and Knuckle Assembly is a complete set from the Suspension Replacement Kits category, designed for the front axle on the driver's side. This is a practical solution for BMW users who want to restore the factory handling characteristics in an organized manner and maintain the consistency of suspension components.

Specifications and technical data

• SKU: 6786001-1
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 6786001
• Substitutable numbers: 31316786001, 6786001, 31314036119, 4036119, 31306771177, 6771177, 31316767323, 6767323, 34116769093, 6769093, 31216793923, 6793923, 34116854999, 6854999, 31216764443, 6768215, 34116764645, 6764645
• Location on the vehicle: Front, Left
• Category: Suspension Component Replacement Kits

Intended Use and BMW Fitment

The offered strut and knuckle assembly is designed specifically for BMW E90 330d models with the M57N2 engine, for the front, left side. This ensures that the user receives a component that is structurally adapted to the suspension geometry, mounting points, and driving dynamics typical for this series.

The complete connection of the strut to the knuckle simplifies servicing and reduces the risk of installation errors, which is important for maintaining correct wheel alignment, braking stability, and predictable cornering behavior.

Technical Characteristics of the Assembly

The connection of the strut with the load-bearing element, the knuckle, forms a cohesive module responsible for:

• guiding the wheel vertically and horizontally,
• transferring loads from the body to the wheel,
• interacting with the braking and steering systems,
• maintaining proper suspension geometry under road conditions.

As an original BMW part (OE), the assembly retains the factory mounting points, which translates to predictable installation and compatibility with other suspension and brake components in the specific model.

Condition, Origin, and Benefits of Choosing a Used Assembly

This product comes from the group of used BMW suspension parts. This means it is a dismantled part that retains the original manufacturer's construction, while significantly reducing repair costs compared to new components. For many BMW E90 330d owners, this is a sensible compromise between quality and budget, especially for comprehensive front-end repairs.

Choosing a complete strut-knuckle assembly also simplifies later diagnostics – the entire module is replaced, which reduces the impact of worn individual components on suspension performance and minimizes the risk of uneven behavior of the front axle.

Practical Application in Service

By installing the BMW E90 330d M57N2 Left Strut and Knuckle Assembly, a mechanic receives a ready-to-install unit that:

• simplifies the replacement process compared to disassembling the old assembly,
• allows for quicker restoration of proper vehicle handling,
• promotes the maintenance of factory suspension performance characteristics,
• reduces the number of potential points of mismatch between components.

This solution is particularly beneficial for post-accident repairs or when the front axle components are significantly worn, and consistency of the entire left-side suspension module is desired.

Technical Support and Additional Materials

If you are considering installing a used suspension assembly and want to better understand the differences between standard and sport configurations, you can find practical tips, comparison tables, and answers to frequently asked questions in the article: Standard vs. Sport Suspension – Construction Differences and Choosing Used Suspension Parts. This is a helpful source of knowledge when planning repairs or upgrades to your drivetrain.

If you are also looking for other BMW Suspension Replacement Kits tailored to different models of this brand, check out our dedicated offer: BMW Suspension Replacement Kits. This will allow you to easily compare available configurations and select the right set for your car.