Mercedes Vito W639 Coil Spring Rear Axle Suspension Set NT108 A6393210704

Mercedes Vito W639 Coil Spring Rear Axle Suspension Set NT108 is an original suspension component from the Shock absorber and strut mounts group, designed for use on the vehicle's rear axle. This used rear coil spring ensures proper body support, stabilizes the car under load, and contributes to predictable vehicle handling on the road. It is a practical solution for users looking to restore correct suspension performance without investing in brand-new components.

Specifications and technical data

• SKU: A6393210704-1
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A6393210704
• Substitutable numbers: A6393210704, A 639 321 07 04
• Location on the vehicle: Rear
• Category: Shock & Strut Mounts

Purpose and function in the suspension system

The presented rear coil spring has been designed specifically for installation in the Mercedes Vito W639 model and works with the rear damping system as a component responsible for maintaining vehicle height and controlling suspension deflection. Its placement on the rear axle allows for effective load distribution when transporting passengers and cargo, which is particularly important in commercial vehicles.

Thanks to its appropriately selected spring rate, the spring helps reduce body roll, improves stability during braking and acceleration, and supports even tire wear. A properly selected component of this type contributes to confident vehicle handling and predictable suspension response in daily operation.

Benefits of using an original rear coil spring

Choosing an original rear coil spring for the Mercedes Vito W639 primarily ensures the preservation of factory suspension performance characteristics. Being from the same design group as other system components, it ensures dimensional compatibility and proper fitment with shock absorber and strut mounts.

Key advantages of using an original spring include:

• consistent performance with stock shock absorbers and other suspension elements,
• maintenance of the rear body height specified by the manufacturer,
• more even load distribution when driving with cargo,
• reduced risk of improper installation due to matched geometry.

This solution is particularly beneficial for users who expect predictable vehicle behavior and want to avoid experimenting with unreliable aftermarket replacements.

Product characteristics and installation

The spring belongs to the Shock absorber and strut mounts group, meaning it is an integral part of the system responsible for wheel guidance and vibration damping. Its designation for the rear of the vehicle makes it easier to select the correct component during axle-specific repairs, without the risk of confusion with front suspension parts.

The used product is a sensible choice for maintenance repairs when the priority is to maintain correct driving parameters within an optimal budget. Installation should be performed by someone with experience in working with suspension components, while adhering to safety protocols regarding work with coil springs.

Selecting parts for a specific vehicle

To correctly select a spring for your specific Mercedes, it is worth verifying compatibility with the vehicle documentation and existing markings in the suspension system. Identification data such as the product SKU, OEM part number, or available interchangeable numbers can also be helpful in confirming compatibility with a specific version of the Vito W639.

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 springs, mounting cushions, or components working with struts, check the available parts in the Mercedes shock absorber and strut mounts category.

Support in choosing used parts

When deciding to use original used suspension components, it is worth considering not only the current repair costs but also the impact on the vehicle's future value. Properly selected elements that maintain manufacturer specifications help keep the car's technical integrity and can be a selling point during resale.

If you want to better understand how choosing original used parts affects operating cost-effectiveness and future car valuation, see the article: Original used parts vs. resale value – how not to lose money?.