BMW 3 Series E90 318d N47 Rear Left N/S Suspension Leg Axle Brake Disc

BMW E90 318d N47 Left Driveshaft Knuckle 143HP is an original suspension component designed for the rear left side of the vehicle. Thanks to its factory geometry and precise fit for BMW construction, it ensures stable handling, proper operation of the running gear, and safe load transfer to the body. This is a solution for users seeking a proven part that aligns with factory specifications for their BMW.

Specifications and technical data

• SKU: 6774809-16
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 6774809
• Substitutable numbers: 33326774809, 6774809, 34216768697, 6768697, 33217547075, 7547075, 33217533445, 7533445, 33326774805, 6774805, 33326757079, 6757079, 33326761581, 6761581, 34216764651, 6764651, 34216855007, 6855007
• Location on the vehicle: Rear, Left
• Category: Other Steering & Suspension Parts

Intended Use and BMW Fitment

The presented driveshaft knuckle is specifically designed for the BMW 3 Series E90 model with the N47 engine producing 143 HP. Its placement on the vehicle is the rear left side, which is crucial for maintaining correct suspension geometry and for proper interaction with other drivetrain and braking system components.

This part belongs to the Other category, which practically means it is a specialized structural component, closely related to the suspension and drivetrain systems. Its selection should be based on compatibility with the specific body version and engine.

Technical and Functional Characteristics

The knuckle integrated with the driveshaft is responsible for transferring loads from the wheel to the suspension and for maintaining the correct position of the hub relative to the body. In practice, this translates to:

• maintaining correct toe and camber angles,
• stable vehicle handling at higher speeds,
• even tire wear,
• proper interaction with the braking and drivetrain systems.

The original BMW design ensures adequate rigidity and resistance to operational loads, which is particularly important during dynamic driving and for everyday use on uneven surfaces. By maintaining factory assembly parameters, the knuckle allows for seamless integration with other rear suspension components.

Benefits of Using an Original BMW Knuckle

Choosing an original part for the BMW E90 318d N47 offers a range of practical advantages:

• Factory Fitment – no need for modifications, drilling, or adjustments; installation according to BMW service documentation.
• Consistency with the Running Gear – maintaining the handling characteristics and driving comfort intended by the manufacturer.
• Compatibility with Factory Components – correct interaction with the hub, bearing, control arms, and braking system elements.
• Operational Safety – proper transfer of forces from the wheel to the suspension reduces the risk of unwanted play and instability.

This solution is particularly recommended for post-accident repairs, replacement of worn suspension components, or for restoring the car to its original factory condition.

Condition and Practical Application

The offered driveshaft knuckle is a used part, allowing for an economical repair while maintaining original BMW specifications. This type of component is often chosen by workshops specializing in the BMW brand and by discerning users who prefer OEM parts over aftermarket alternatives of uncertain quality.

Before installation, standard verification in a workshop is recommended (checking mounting points, sockets, mating surfaces), and after installation, a wheel alignment should be performed to fully utilize the suspension system's potential and ensure even tire wear.

Other Category Items and Technical Knowledge

If you are looking for other parts in the BMW Other category, check out our dedicated offer: BMW Other. There you will find a wide selection of structural and mounting components tailored to various models of this brand.

For those interested in comparing technical solutions used in different brands and sports versions, it is worth reading the article on our blog: Audi RS vs. Other Models – What Lies Under the Hood and Chassis?. This provides a good supplement to knowledge about the construction of suspension, drivetrain, and braking systems in premium cars.