Mercedes-Benz W639 Rear Suspension Leg Wheel Hub Driveshaft Left N/S A6393500176

Mercedes-Benz W639 Rear Suspension Leg Wheel Hub Driveshaft Left N/S is a complete rear suspension assembly designed for the left side of Mercedes Vito/Viano W639 models. This used component allows for an economical yet functional replacement of worn parts while maintaining factory geometry and vehicle handling characteristics.

Specifications and technical data

• SKU: A6393500176-1
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A6393500176
• Substitutable numbers: A6393500176, A 639 350 01 76, A 639 350 47 01, A6393504701, A6393502310, A 639 350 23 10
• Location on the vehicle: Rear, Left
• Category: Suspension Component Replacement Kits

Purpose and vehicle placement

The presented set is designed for installation in the rear left part of the vehicle's suspension. Its placement on the rear axle means the component is responsible for proper wheel guidance, transferring loads from the body to the road, and working in conjunction with the braking and drivetrain systems. Thanks to its dedicated fitment for the W639 platform, the correct suspension geometry is maintained, which translates into driving stability, predictable vehicle behavior in corners, and even tire wear.

Technical and functional characteristics

The steering knuckle with the wheel hub and driveshaft forms a cohesive working assembly that:

• ensures stable wheel mounting on the rear left side,
• enables the transfer of torque from the drivetrain to the wheel,
• works with suspension and damping elements as well as the braking system,
• maintains proper camber and toe angles within the rear axle. A set configured in this way from the Suspension replacement kits category facilitates service, as it allows for the replacement of several interrelated components simultaneously, reducing the risk of further play and irregularities in suspension operation.

Benefits of using a used suspension assembly

Choosing a used suspension component for a Mercedes W639 is a solution that significantly reduces repair costs while maintaining the original design. The steering knuckle, wheel hub, and driveshaft assembly:

• facilitates the restoration of proper rear axle operation after a collision, corrosion, or operational wear,
• reduces installation time by integrating several sub-assemblies into one module,
• allows for the preservation of factory mounting points and suspension operating characteristics. For workshops and private users, this means faster repair completion and a lower risk of issues with geometry alignment after replacement.

Application in service practice

This type of assembly is particularly useful for:

• repairs following mechanical damage to the rear left side,
• comprehensive replacement of load-bearing suspension elements,
• restoring the efficiency of the drivetrain after a failure within the rear axle area. After installation, it is recommended to perform a suspension geometry check and verify cooperating elements, such as shock absorbers, springs, and brake system components, to fully utilize the potential of the newly installed assembly.

Selection support and technical knowledge

If you are considering installing a used suspension component and want to better understand the differences between stock and sports solutions, as well as the principles of safely selecting dismantled parts, check out the article Stock vs. sports suspension – design differences and is it worth buying used suspension parts?, where you will find practical tips, comparison tables, and answers to frequently asked questions. If you are planning a comprehensive repair or upgrade of the rear suspension area in your Mercedes and need other elements from the same group, such as additional steering knuckles, hubs, or related mounting components, check the available parts in the Mercedes suspension replacement kits category.