BMW 1 E87 120i N46 Rear Left N/S Spring Strut Leg Brake Suspension Hub Manual

BMW 1 E87 120i N46 Rear Left N/S Spring Strut Leg Brake Suspension Hub Manual is an original chassis component designed for the rear left side of the vehicle, dedicated to versions with a manual transmission. This solution allows for precise restoration of suspension geometry, maintaining handling stability, and proper load distribution on the rear axle. Thanks to its factory design, the component integrates perfectly with other BMW suspension elements, which facilitates installation and subsequent operation.

Specifications and technical data

• SKU: 6774809-36
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 6774809
• Substitutable numbers: 33326774809, 6774809, 34216776377, 6776377, 34216855002, 6855002, 33326774805, 6774805, 33326757079, 6757079, 33326761581, 6761581, 34214031725, 4031725, 34216769271, 6769271, 34216764649, 6764649, 33217547073, 7547073, 33217537715, 7537715, 34216768191, 6768191
• Location on the vehicle: Rear, Left
• Gearbox type: Manual
• Category: Suspension Component Replacement Kits

Purpose and function in the suspension system

The described rear left steering knuckle is part of the suspension and wheel guidance system, responsible for the stable mounting of the hub, correct wheel alignment, and the transfer of forces from the body to the road. In combination with control arms, springs, and shock absorbers, it creates a rigid yet appropriately flexible assembly that influences:

• maintaining correct rear axle geometry,
• driving stability at higher speeds,
• even tire wear,
• precise handling in corners.

The element is prepared for integration with the braking system and other rear axle components, allowing for a consistent, technically correct repair.

Compatibility and fitment for BMW

The steering knuckle has been designed specifically for the construction of the BMW 1 Series E87 with the 150HP N46 engine, which ensures full dimensional and mounting compatibility. Adaptation to a manual transmission means compliance with the factory drivetrain, without the need for mounting modifications or additional adapters.

Thanks to the use of original geometry, precise adjustment of toe and camber angles is possible after installation, which is crucial for safety and the predictable behavior of the car on the road.

Performance characteristics of the used element

The presented component comes from dismantling, which allows for an economical repair while maintaining factory build quality. A used steering knuckle is a good choice in situations where mechanical damage has occurred (e.g., after a collision or hitting an obstacle) and it is necessary to replace the entire wheel mounting assembly.

In practice, this means:

• maintaining the original structural rigidity,
• compatibility with stock suspension and brake components,
• possibility of installation without structural modifications.

Benefits of using an original BMW steering knuckle

Using an original rear left steering knuckle in a BMW E87 120i N46 translates into a number of practical benefits. Firstly, you maintain factory driving characteristics, which is particularly important in cars with a precisely tuned suspension. Secondly, you avoid fitment issues typical of aftermarket replacements of uncertain origin.

Replacing the complete element is also often faster and more predictable than repairing a damaged steering knuckle, which shortens vehicle downtime in the workshop and facilitates subsequent geometry adjustment.

Selection and additional technical information

To correctly select the steering knuckle, it is worth verifying compatibility with the manufacturer's markings and the list of interchangeable numbers in the technical specifications section. This helps avoid ordering errors and ensures full compliance with the specific vehicle equipment version. In case of doubt, comparing the construction of the removed element with the offered product is helpful.

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 control arms, springs, or shock absorbers, check the available parts in the BMW suspension replacement kits category.

For drivers considering different chassis configurations and purchasing dismantled parts, the following guide will be useful: Stock vs. sport suspension – differences in construction and is it worth buying used suspension parts?, which discusses the selection of used components, their parameters, and practical application examples.