BMW 3 E46 323i M52 Rear Left N/S Suspension Leg Brake Wheel Hub Axle

BMW 3 E46 323i M52 Rear Left N/S Suspension Leg Brake Wheel Hub Axle is a complete assembly designed for the rear axle on the driver's side. The set combines the suspension strut, wheel hub, and mounting components into a single unit, which facilitates servicing and speeds up replacement in BMW 3 Series E46 323i vehicles. Thanks to its factory geometry and precise fitment for this specific model version, it ensures consistent performance of the suspension and braking systems.

Specifications and technical data

• SKU: 6774777-6
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 6774777
• Substitutable numbers: 33326774777, 6774777, 34216758135, 6758135, 33211229495, 1229495, 33211229591, 1229591, 33321136643, 1136643, 33321094457, 1094457, 33326770803, 6770803, 34211165033, 1165033, 34216864903, 6864903, 34216855155, 6855155, 34211165211, 1165211, 34211162315, 162315
• Location on the vehicle: Rear, Left
• Category: Suspension Component Replacement Kits

Purpose and function in the suspension system

The presented suspension assembly is designed for the rear left side of the vehicle, where it is responsible for wheel guidance, transferring loads from the body to the road, and providing a stable mount for the hub and brake components. Integrating several sub-assemblies into one module reduces the risk of installation errors, makes it easier to maintain correct geometry, and shortens repair time compared to replacing individual components.

A properly selected suspension assembly is crucial for:

• maintaining driving stability during braking and acceleration,
• even tire wear on the rear axle,
• proper interaction with the braking system and safety features,
• reducing vibrations transmitted to the vehicle body.

Compatibility with BMW 3 E46 323i M52

The suspension replacement set has been designed specifically for the BMW 3 Series E46 in the 323i version with the M52 engine, which ensures compatibility with factory mounting points and rear axle dimensions. The correct placement on the left side of the vehicle minimizes the need for additional modifications and allows for installation in accordance with the manufacturer's service documentation.

By maintaining the original design, the suspension system retains the characteristics intended for this model after replacement – both in terms of comfort and predictable vehicle handling in corners. This is particularly important for rear-wheel-drive cars, where rear axle geometry has a direct impact on traction and stability.

Characteristics of the used OEM component

The offered assembly is an original BMW part sourced from dismantling, which means it retains factory quality in terms of materials and construction. A used component of this type represents a reasonable compromise between cost and durability, especially compared to aftermarket replacements of uncertain origin. In practice, this translates into better fitment with other rear axle components and a lower risk of installation issues.

Within a single module, you receive a complete base for further suspension and brake system service work, which facilitates repair planning and reduces the number of separate items on your parts list.

Benefits of installing a complete suspension assembly

Using a complete rear left suspension assembly with hub and axle in a BMW 3 E46 323i M52 provides a number of practical service benefits:

• simplified installation – fewer workshop operations compared to replacing individual elements,
• structural consistency – all components come from the same system, which helps maintain correct geometry,
• easier diagnostics – replacing the complete module eliminates many potential sources of play and noise,
• optimal fitment with the stock braking and drivetrain systems.

For workshops, this means shorter labor time and a lower risk of complaints, and for the user – more predictable vehicle behavior after repair and more stable rear axle performance.

Expanding knowledge and selecting parts

If you are planning a comprehensive repair or upgrade of the suspension area in your BMW and need other elements from the same group, such as struts, control arms, or hubs, check out the available parts in the BMW suspension replacement sets category.

When planning major service work, it is also worth understanding when it pays off to reach for original used components instead of investing in costly refurbishment. This is discussed in more detail in our blog article: Manual transmission failures and the advantages of original used components over refurbishment, which outlines the general principles for making informed decisions when choosing used parts for critical vehicle systems.