Relay Mercedes W176 W246 4-Pin Black Hella 12V A0025428419

Relay Mercedes W176 W246 4-Pin Black Hella 12V 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 professional repair of power supply and control systems, maintaining the correct operating parameters of the 12V installation.

Specifications and technical data

• SKU: A0025428419
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A0025428419
• Substitutable numbers: A0025428419, A 002 542 84 19, KD
• Color: Black
• Category: Relays

Technical characteristics and application

The Hella 12V relay dedicated to the Mercedes W176 model operates in the vehicle's standard low-voltage system, responsible for reliable switching of electrical circuits. Using a branded component allows for maintaining stable operating parameters of systems such as power supply for consumers, control modules, or selected comfort equipment, depending on the specific car configuration.

The relay design is based on proven electromagnetic technology, which translates into operational repeatability and resistance to typical operational loads in the engine compartment or inside the vehicle. The Black housing ensures a consistent look with the factory wiring harness and other electrical components.

Benefits of using an original relay

Using an original Hella relay in a Mercedes W176 helps reduce the risk of compatibility issues that may occur with aftermarket parts of uncertain origin. A properly selected component:

• maintains correct circuit switching parameters,
• supports stable operation of electrical and electronic systems,
• reduces the risk of contact overheating and improper system load,
• facilitates diagnostics – maintaining compliance with factory specifications.

Thanks to this, the relay is a practical service solution for repairing power supply and control systems in Mercedes vehicles, especially where maintaining the original electrical specification is required.

Condition, verification, and fitment

The offered item comes from the category of used components, which allows for reducing repair costs while maintaining appropriate quality. Before installation, it is recommended to perform a standard verification of compatibility with the vehicle's electrical system, particularly regarding the socket type, pin configuration, and purpose in the given circuit.

To facilitate selection, the part has assigned catalog numbers and interchangeable numbers, which allows for precise matching to a specific equipment version. In practice, this means the possibility of a direct replacement of a damaged relay with a functional equivalent without the need to modify the wiring harness or socket.

Integration with the Mercedes electrical system

The Hella 12V relay works with the factory electrical architecture of the Mercedes W176, maintaining compliance with system parameters and control logic. As a result, it can be used both as a repair element and as a part used in troubleshooting faults in consumer power supply circuits.

Proper selection of the relay has a direct impact on the stability of electrical systems, reduction of voltage drops, and correct operation of safety features. This is particularly important in modern vehicles, where many comfort and safety functions rely on precisely controlled circuits.

Related products and guide materials

If you are planning a comprehensive repair or upgrade of the electrical system area in your Mercedes and need other elements from the same group, such as starter relays, light relays, or fan relays, check the available parts in the Mercedes Relays category.

For larger service works within the powertrain and electrical system, it is also worth expanding your knowledge on verifying the condition of used components – you will find practical tips in the article How to buy a used car engine and avoid a bad deal – a step-by-step guide, which helps to better assess the condition of key components before installation.