This replacement bulb socket is designed for the left inner lamp mounted in the tailgate of the Peugeot 406 Combi. It includes a short section of wiring to simplify installation and restore a reliable electrical connection to the rear lamp cluster. Ideal for professional mechanics and competent DIY enthusiasts, the part is commonly searched for by its product code and is an effective repair for corroded or damaged bulb holders that cause intermittent or non-functioning tail lights.

Technical Information

• Manufacturer: Stellantis / Citroén / Peugeot
• Model: Peugeot 406 Combi
• Product Codes: 6350H6, 6350H6 NFP
• Other Numbers: —

Function And Typical Faults

The socket secures the bulb and provides the electrical contact between the bulb pins and the vehicle wiring. Common failure modes include corrosion of the metal contacts, heat-induced deformation or cracking of the plastic body, and water ingress from a damaged tailgate seal. Faults usually present as one or more rear lights flickering, intermittent operation, or complete loss of that lamp circuit.

Expected Lifespan

Service life depends on environment and use; sockets in seawater or salted-road regions tend to fail sooner. Typical longevity is several years, but damage from moisture or overheating can shorten that considerably.

How To Replace

1. Disconnect the vehicle battery before starting work to avoid short circuits.
2. Open the tailgate and remove the interior trim panel to access the lamp housing.
3. Remove the lamp cluster or access the bulb holder from behind, depending on the vehicle trim.
4. Unplug the existing socket from the wiring harness and cut or unclip any retaining clips as required.
5. Fit the new socket, connect the supplied wiring piece to the vehicle loom (use correct crimps or solder and heatshrink for a reliable joint).
6. Install new bulbs when refitting the socket; test the lamp functions (stop, tail, indicator) before reassembling trim.
7. Reassemble the trim and reconnect the battery.

Installation Recommendations

• Always Replace Bulbs When Replacing The Socket: Old bulbs can mask contact issues and shorten the life of a new socket.
• Use Corrosion Protection: Apply a light dielectric grease to metal contacts to reduce corrosion and improve conductivity.
• Ensure Proper Sealing: Check and renew any tailgate seals or grommets to prevent water ingress that causes socket failure.
• Secure Wiring: Fasten the wiring to avoid chafing against the tailgate structure.
• Test Before Final Assembly: Verify all lamp functions after installation to avoid repeated disassembly.

Most Common Reason For Failure

The predominant cause of failure is moisture-induced corrosion of the contact surfaces and plastic degradation from heat cycles. Water penetration into the tailgate lamp area and poor sealing accelerates contact corrosion and electrical resistance, leading to intermittent or lost lamp function.

This socket is a practical, cost-effective repair for Peugeot 406 Combi rear lamp faults and will restore reliable operation when installed following recommended procedures.

Product Overview

This left rear interior lamp is designed for the tailgate of the Peugeot 406 Combi (estate). It provides interior illumination of the load compartment and serves as a replacement lamp assembly for the left side of the boot lid. The unit is commonly searched under the code 6350H6 and is offered as an original-fit replacement for vehicles using the same part number.

Key Features

• Direct replacement for Left Rear Tailgate Interior Lamp on Peugeot 406 Combi
• OEM-fit style and mounting points for straightforward installation
• Sold without bulb holders/sockets — bulb holders must be purchased separately
• Ideal for professional fitters and DIY mechanics performing trunk/boot repairs

Compatibility

Compatible with Peugeot 406 Combi (Estate) models that use the corresponding left tailgate inner lamp part number. The product is commonly referenced by code 6350H6.

Installation

Typical replacement procedure for a trained mechanic or experienced DIYer:

• Open the tailgate and remove the interior trim panel (plastic clips and/or screws) to access the lamp assembly.
• Unclip the lamp housing from the tailgate and carefully unplug the electrical connector.
• If reusing the bulb holder, remove it from the old unit and fit it into the new lamp (note: bulb holder is not included with this item).
• Fit the new lamp assembly into the tailgate, reconnect the electrical connector, and secure the housing with its clips/screws.
• Test the lamp operation before reattaching the interior trim panel.

For safety, ensure ignition is off and avoid shorting wiring during installation; disconnect the negative battery terminal if required by workshop procedure or if you will be working near other vehicle electronics.

Technical Information

• Manufacturer: Stellantis / Peugeot
• Model(s): Peugeot 406 Combi (Estate) — Left Rear Tailgate Inner Lamp
• Product Codes: 6350H6 NFP
• Other Numbers: 6350H6

Installation Recommendations

• Use proper trim tools to avoid damaging trim clips and panels.
• If the vehicle shows signs of water ingress, inspect tailgate seals and drainage channels and repair as needed before installing the new lamp.
• Replace corroded connectors or bulb holders; a poor electrical contact can cause intermittent operation or failure.
• Test all lamp functions (interior illumination, any integrated sensors) after installation and before refitting trim.

Most Common Failure Reasons

• Moisture ingress and water leaks leading to corrosion of contacts or bulb holder failure.
• Cracked or damaged lens/housing from impacts or loading/unloading cargo.
• Corroded or brittle wiring and connectors, especially in older vehicles or where seals have failed.
• Bulb holder or bulb failures — note that this product is supplied without the bulb holder.

Notes

Searchable identifiers: 6350H6. Bulb holders/sockets are not included with this lamp and must be ordered separately if required.