BMW F32 F33 418d 420d Rear Left N/S Wheel Suspension Leg Hub Brake Caliper

BMW F32 F33 418d 420d Rear Left Knuckle Suspension Strut Hub Brakes is a complete rear suspension component designed for the left-hand drive axle in 4 Series models. By integrating the knuckle, suspension strut, hub, and brake system mountings, this used assembly allows for efficient and technically correct restoration of the rear axle geometry. This solution is particularly beneficial for post-accident repairs and replacing worn-out components in BMW F32 and F33 series vehicles.

Specifications and technical data

• SKU: 6797507-4
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 6797507
• Substitutable numbers: 33326797507, 6797507, 33416867265, 6867265, 33208680347, 8680347, 34216850857, 6850857, 34216864900, 6864900, 33416797497, 6797497, 33207597681, 7597681, 34216792229, 6792229
• Location on the vehicle: Rear, Left
• Category: Suspension Component Replacement Kits

Purpose and Compatibility

The presented component is dedicated to BMW 4 Series F32 and F33 models with 418d and 420d engines, where it is responsible for the correct positioning of the left rear wheel. Its placement on the vehicle, specified as rear – left side, ensures unambiguous identification during part selection and minimizes the risk of errors during installation.

The knuckle integrated with the suspension strut and hub forms a key mounting point for control arms, the shock absorber, and brake system components, which directly impacts driving stability, geometry precision, and even tire wear.

Assembly Structure: Knuckle, Suspension Strut, Hub, Brakes

The set includes the rear axle structural assembly, where the knuckle forms a rigid base for the other components. Its main functions include:

• maintaining the correct position of the wheel hub relative to the body,
• providing stable mounting points for control arms and the shock absorber,
• precise wheel guidance within the suspension's operating range.

The presence of the hub and brake system mountings allows for direct transfer of braking forces to the suspension structure, resulting in predictable vehicle behavior during intensive braking. Such an assembly is particularly useful when multiple components need to be replaced simultaneously, and the priority is structural integrity and correct rear axle geometry.

Benefits of Using a Used BMW Suspension Assembly

Choosing a used, original suspension assembly for a BMW offers a range of practical advantages:

• maintaining the factory driving characteristics typical for BMW 4 Series,
• reducing repair costs while maintaining high-quality components,
• minimizing the risk of fitment issues compared to non-original aftermarket parts,
• enabling quick restoration of the entire rear left suspension corner.

This solution allows for controlled restoration of proper suspension and brake system operation, which is important for both safety and driving comfort.

Professional Installation and Practical Application

Due to the importance of the knuckle and hub for wheel geometry, installation by a workshop experienced with the BMW F32/F33 platform is recommended. After installation, it is advisable to perform:

• a check for play in the suspension mountings,
• a verification of the correct seating of brake components,
• a rear axle geometry alignment on a professional setup.

This approach allows for the full utilization of the suspension assembly's potential and ensures stable, predictable vehicle handling in everyday use.

If you are planning a comprehensive repair or upgrade of the rear suspension area in your BMW and need other parts 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 broader use of dismantled components in premium vehicles, an article describing the advantages of using original used parts in Mercedes-Benz cars may be helpful – find more information in the material Used Parts for Mercedes – Original Dismantled Parts.