Relay Mercedes W639 W906 5-Pin Black 12V 20A A0035420219 Set X2

Relay Mercedes W639 W906 5-Pin Black 12V 20A Set X2 is an original component from the Relays group, designed for use in the electrical system of Mercedes vehicles. This used component allows for an economical yet technically correct repair of control systems, maintaining factory operating standards of the installation.

Specifications and technical data

• SKU: A0035420219-1
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A0035420219
• Substitutable numbers: A0035420219, A 003 542 02 19
• Color: Black
• Category: Relays

Technical specifications and application

The offered relay is an actuator designed for operation in vehicle electrical circuits where reliable load switching is required while maintaining stable operating parameters. The design, based on factory solutions, ensures proper cooperation with the electrical system and control modules used in W639 and W906 series vehicles.

The Black color facilitates component identification in the fuse box or relay module, which is important for diagnostics and service. Thanks to the preservation of the original housing geometry and pinout standard, the relay can be installed in place of the factory element without the need for installation modifications.

Benefits of using an original Mercedes relay

Using an original relay in the vehicle's electrical system allows for maintaining consistency of operating parameters with the manufacturer's specifications. This is particularly important in circuits responsible for safety, comfort, and component control, where the stability of voltage and current switched by the relay affects the durability of other components.

A used component with preserved functionality is a cost-effective solution that also avoids problems typical of replacements with unverified parameters. In the case of intensively operated vehicles, such a choice facilitates maintaining the continuity of fleet or commercial vehicle operation while reducing service costs.

Integration with the vehicle's electrical system

The relay has been designed to work with factory wiring harnesses and control modules used in Mercedes vehicles, which translates into proper seating in the socket and secure electrical contact. Standard connectors minimize the risk of contact overheating and voltage drops that could affect the operation of connected receivers.

Thanks to the preservation of the original specification, the component can be used as a direct replacement for a worn or damaged relay, without the need for interference with the installation, programming, or controller adaptation.

Product condition and service application

The relay is offered as a used part, which allows for repair cost optimization while maintaining the original design. This type of component is particularly useful in service centers specializing in the Mercedes brand and in workshops servicing vans and passenger cars, where quick availability and compliance with factory solutions are important.

The element will work well both for ad-hoc replacement of a damaged relay and for broader service work involving diagnostics and restoring the efficiency of electrical systems in W639 and W906 series vehicles.

Offer expansion and additional materials

If you are planning a comprehensive repair or modernization of the electrical system area in your Mercedes and need other elements from the same group, such as control relays, power relays, or relay modules, check the available parts in the Mercedes Relays category.

For users interested in a broader approach to selecting used components in a car, including assessing the cost-effectiveness of repairs using aftermarket parts, the following guide article may be helpful: Stock vs. sports suspension – differences in construction and is it worth buying used suspension parts?.