BMW E90 318i N46 Leg Suspension Carrier Hub Brake Disc Rear Left N/S

BMW E90 318i N46 Suspension Driveshaft Knuckle Hub Left is a complete, used rear suspension component designed for installation on the left side of the axle in E90 3 Series models with the N46 engine. The kit combines key suspension and drivetrain components, facilitating servicing and ensuring structural consistency with the factory BMW solution. This is a practical solution for workshops and users who expect proven geometry and correct integration with the standard chassis architecture.

Specifications and technical data

• SKU: 6774809-21
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 6774809
• Substitutable numbers: 33326774809, 6774809, 34216768697, 6768697, 34216855007, 6855007, 33326774806, 6774806, 33326757080, 33326761582, 6761582, 34216764651, 6764651, 33217547069, 7547069, 33217523959, 7523959, 33326761581, 6761581, 33326774805, 6774805, 33326757079, 6757079
• Location on the vehicle: Rear, Left
• Category: Suspension Component Replacement Kits

Technical Characteristics of the Rear Suspension Kit

The presented component belongs to the Suspension Replacement Kits group and includes an assembly consisting of a driveshaft, knuckle, and hub, prepared for operation in the rear left part of the vehicle. This combination of components allows for maintaining proper system rigidity, correct wheel guidance, and stable torque transfer to the drive axle. The kit is compliant with BMW's original design concept for the E90 platform, contributing to the preservation of standard handling and traction parameters.

Purpose and Placement on the Vehicle

The component is designed for installation in the rear of the vehicle, on the left side, taking into account the body and suspension geometry characteristic of the BMW 3 Series E90 with the N46 unit. Its placement in this area directly influences:

• wheel guidance in the vertical and horizontal planes,
• vehicle stability during acceleration and braking,
• correct interaction with the braking system and traction control systems.

By maintaining the original mounting architecture, the kit allows for precise restoration of the rear axle's factory settings after repair or replacement of damaged components.

Benefits of Using an Original BMW Kit

Using a complete assembly of the driveshaft, knuckle, and hub in a single module reduces the risk of incompatibility between individual parts and simplifies the installation process. The main advantages of this solution include:

• Structural Consistency – all components come from a single system, which promotes the maintenance of proper geometry and alignment.
• Replication of Factory Parameters – the suspension performance characteristics intended by the vehicle manufacturer are preserved.
• Simplified Parts Selection – no need to individually match driveshafts, knuckles, and hubs for compatibility.

A kit configured in this way is particularly useful for accident repairs, replacement of components after mechanical damage, or for comprehensive rear axle refurbishment.

Application of Used Parts in BMW Service

A used original BMW component offers a sensible compromise between repair cost and maintaining proper quality and fit. In workshop practice, this allows for:

• reducing the cost of replacement compared to new assemblies,
• maintaining compliance with factory assembly specifications,
• shortening the time spent searching for individual components and verifying them.

When performing repairs using used components, it is advisable to pay attention to correct installation, checking for play, and suspension geometry after the work is completed, to fully utilize the potential of the offered kit.

Compatibility and Reference Numbers

The offered product has a dedicated OEM part number and associated interchangeable numbers, which facilitates unambiguous identification in BMW catalogs and parts selection systems. This allows a workshop or user to quickly verify compatibility with a specific version of the BMW E90 318i N46, minimizing the risk of selecting the wrong part. If necessary, it is advisable to compare the markings with the vehicle's service documentation or the existing component removed from the car.

If you are planning a comprehensive repair or upgrade of the rear axle suspension area in your BMW and need other parts from the same group, such as control arms, bushings, or additional mounts, check the available parts in the BMW Suspension Replacement Kits category.

For users considering broader use of aftermarket components, including suspension and drivetrain parts, practical tips on selecting and operating such parts may be useful – you can find them in the article Audi on second-hand parts – tuning and repairs without quality loss, which discusses general principles of safe use of used components in premium cars.