Seat Ibiza Mk4 6J Rear Light Lamp Bulb Holder Housing Left N/S 6J4945257C

Seat Ibiza Mk4 6J Rear Light Lamp Bulb Holder Housing Left N/S is an original lighting system component designed for installation in the rear left lamp of the vehicle. It ensures stable bulb seating, proper connection to the electrical system, and maintains the correct light beam geometry. This is a practical solution for drivers who want to restore full functionality to their rear lighting in a safe and factory-compliant manner.

Specifications and technical data

• SKU: 6J4945257C
• Mark: Seat
• Condition: Used
• OEM Part Number: 6J4945257C
• Substitutable numbers: 6J4945257C, 6J4 945 257 C
• Location on the vehicle: Rear, Left
• Rim width: 6
• Category: Light Bulbs & LEDs

Purpose and function of the bulb holder

The presented holder is dedicated to the rear left lamp in the Seat Ibiza 6J generation model. It is responsible for precisely holding the bulbs in the correct position and ensuring a secure connection to the electrical wiring harness. As a result, the lighting system maintains proper operating parameters, and the position lights, brake lights, or turn signals can function in a predictable and consistent manner.

This element is part of the Lamps and LED lights group, which is why it has a direct impact on vehicle visibility and the clarity of light signals for other road users. A properly selected holder minimizes the risk of looseness, bulb flickering, or intermittent power supply issues resulting from poor contact.

Construction, installation, and fitment

The holder has been designed as a component compatible with the factory construction of the rear lamp. This means that its geometry, mounting points, and bulb sockets are matched to the original lighting housing. Installation involves seating the holder into the lamp body and connecting the electrical harness connector, which allows for quick restoration of functionality without the need for wiring modifications.

Located in the rear zone on the left side of the vehicle, the component operates under conditions exposed to vibrations, temperature changes, and humidity. Using an original holder helps maintain the stability of electrical connections and reduces the risk of contact overheating resulting from improper bulb seating.

Benefits of using an original holder

Using a factory bulb holder in the rear lamp offers a number of practical benefits:

• maintaining compatibility with the factory electrical system and lamp construction,
• stable bulb mounting, reducing the risk of falling out or misalignment of the bases,
• secure electrical contacts, which helps maintain uniform brightness and correct light operation,
• easier diagnostics of potential lighting faults – the holder is a predictable, structurally known element,
• possibility of use in the process of repairing or replacing the lamp without the need for interference with the vehicle's wiring.

The product comes from a group of used parts, which allows you to combine original manufacturing quality with a cost-effective repair. For many users, this is a reasonable compromise between durability and the budget allocated for lighting maintenance.

Application area and compatibility

The holder operates in the area of the rear lamp on the left side of the body, where it is responsible for supporting several light functions simultaneously. Correct fitment to the specific version of the Seat Ibiza 6J body is crucial to avoid installation problems and incorrect bulb positioning relative to the reflectors and lens.

Before purchasing, it is worth verifying the compatibility of the element with your vehicle version using the technical specification data. This allows you to select a holder that will work with the existing lamp without the need for adaptation or modifications.

Lighting safety and technical knowledge

A functional bulb holder has a direct impact on safety – it determines whether the rear lights will operate continuously and predictably. In the case of upgrading or repairing the lighting system, it is worth expanding your knowledge on component selection, especially in the context of modern lighting solutions. Useful information can be found in the article See more and better – a complete guide to selecting and replacing used LED and Xenon headlights, which discusses practical aspects of working with vehicle lighting.

If you are planning a comprehensive repair or upgrade of the rear lighting zone in your Seat and need other elements from the same group, such as housings, modules, or complete lamp assemblies, check out the available parts in the Seat Lamps and LED lights category.