Citroën Relay Fiat Ducato Peugeot Boxer Brake Light Switch 1398492080

Citroën Relay Fiat Ducato Peugeot Boxer Brake Light Switch is a precision component from the Switches, control elements and ignition locks group, responsible for the correct activation of brake lights in popular commercial models of the group. The used OEM component is a sensible choice for electrical system maintenance when you care about factory fitment and stable operation of the installation. Thanks to the original design, the switch works perfectly with the vehicle's factory wiring harness and braking system.

Specifications and technical data

• SKU: 1398492080
• Mark: Citroën
• Condition: Used
• OEM Part Number: 1398492080
• Substitutable numbers: 1398492080, 13 984 920 80
• Part type: Push Switch
• Category: Switches & Controls

Function and application of the brake light switch

The brake light switch in Citroën Relay, Fiat Ducato, and Peugeot Boxer models is responsible for generating an electrical signal when the brake pedal is pressed. This signal controls not only the rear brake lights but, in many configurations, also safety-assisting systems such as electronic stability control or cruise control. A functional switch is crucial for clear braking signaling to vehicles behind and for the correct operation of the vehicle's electronics.

Design and installation fitment

The offered item belongs to the Switches, control elements and ignition locks group, which means it was designed as part of the vehicle's electrical control system. The switch design is adapted to the mounting socket at the brake pedal in the Citroën Relay, Fiat Ducato, and Peugeot Boxer, which facilitates installation and reduces the risk of play or improper positioning. Using an original solution allows for maintaining the correct circuit switching points, which translates into predictable brake light operation.

Benefits of using an original switch

Choosing a used, original brake light switch for these commercial models is a compromise between cost and quality. The OEM component provides:

• factory fitment to mounts and the electrical harness,
• maintenance of operating parameters specified by the vehicle manufacturer,
• consistency with other brake control system components. This reduces the risk of problems typical of aftermarket replacements, such as unstable light activation, errors in assistance systems, or the need for installation modifications. Using a component from the same design family as the factory-installed one increases the predictability of operation in intensively used commercial vehicles.

Condition and installation aspects

The offered switch comes from disassembly and is classified as a used OEM component. Before installation, a standard service procedure is recommended: checking the mechanical range of motion, inspecting electrical contacts, and correct adjustment relative to the brake pedal in accordance with the service documentation of the given model. A properly installed switch ensures repeatable brake light activation without delays and without the need for excessive pedal pressure.

Brake system safety and additional materials

A functional brake light switch is one of the elements affecting the safety of the entire braking system, especially in commercial vehicles operated under heavy loads. If you want to better plan brake maintenance in your car and consciously approach the selection of used components, it is worth checking out the guide: Second-hand brake system: how to safely choose discs, calipers, and ABS?. If you are planning a comprehensive repair or upgrade of the electrical control area in your Citroën and need other elements from the same group, such as combination switches, steering column control elements, or ignition lock components, check the available parts in the Citroen switches, control elements and ignition locks category.