Mercedes Vito Viano W639 Battery Cable Positive Wire Lead Terminal A6395400830

Mercedes Vito Viano W639 Battery Cable Positive Wire Lead Terminal is an original power supply component designed for Mercedes Vito and Viano W639 series vehicles. As part of the Battery Accessories group, it ensures a stable connection between the positive terminal and the vehicle's electrical system, which translates into reliable starting and proper operation of electronic systems. This used, factory-original cable is a sensible choice for users looking for a well-fitted component at an attractive price.

Specifications and technical data

• SKU: rhd-A6395400830
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A6395400830
• Substitutable numbers: A6395400830, A 639 540 08 30, KD
• Category: Battery Accessories

Technical characteristics of the positive cable

The offered positive battery cable has been designed specifically for the Mercedes Vito and Viano W639 platform, ensuring it maintains the correct conductivity parameters and routing geometry in the engine bay. The integrated positive terminal end allows for a secure, mechanically stable connection to the battery pole, reducing the risk of voltage drops and overheating of the connector.

The original design of the cable is adapted to the current loads typical for the starter motor and the main energy consumers in the vehicle. The wire cross-section, type of insulation, and method of attaching the terminals have been selected by the manufacturer to ensure adequate resistance to vibrations, temperature changes, and operating conditions in the engine compartment.

Function in the vehicle's electrical system

The positive battery cable plays a key role in the vehicle's power circuit, being responsible for:

• transferring energy from the battery to the starter during engine start-up,
• powering the vehicle's main electrical bus,
• a stable connection to the system, minimizing voltage drops.

Thanks to the factory fit for Vito and Viano W639 models, installation is straightforward – the cable follows the original routing paths, which facilitates service and reduces the risk of accidental insulation abrasion.

Condition, origin, and advantages of using a used part

The element comes from the dismantling of a Mercedes vehicle, which means it is a part compliant with the manufacturer's factory specifications. A used positive battery cable is a practical solution for users who want to maintain the original quality of the installation while reducing repair costs.

Choosing an original, used component from the Battery Accessories group allows you to maintain the consistency of the electrical system, avoiding problems with cable length, terminal diameter, or mounting methods that often occur with cheaper replacements.

Selection and application in service practice

The Mercedes Vito Viano W639 Battery Cable Positive Wire Lead Terminal will work well both for standard replacement of a worn-out element and for repairs after a power supply system failure. Thanks to the preservation of the original geometry and mounting points, the mechanic or user can perform a quick installation without the need for harness modifications or custom terminal fabrication.

In service practice, the use of an original cable reduces the risk of:

• improper contact at the positive terminal,
• excessive heating of connections under high current load,
• insulation damage resulting from incorrect cable routing.

Expanding the modernization of the Mercedes power supply system

If you are planning a comprehensive repair or modernization of the battery power area in your Mercedes and need other elements from the same group, such as ground cables, additional terminals, or terminal covers, check the available parts in the Mercedes Battery Accessories category.

For drivers interested in a broader approach to repairing drivetrain and power supply systems in the vehicle, it is also worth checking out our guide on selecting used OEM components – especially in the context of drive axles and differentials. Practical tips can be found in the article Humming differential? Find out why a used OEM drive axle is a better investment than an uncertain replacement.