Product Description

This replacement lamp socket is designed for the right-hand rear inner lamp mounted in the tailgate of the Peugeot 406 Estate (Combi). The part includes a short length of wiring to facilitate installation and is a direct-fit solution for technicians and DIY enthusiasts searching by part code 6351H6. Replacing a worn socket restores reliable bulb contact, eliminates intermittent lighting faults and prevents water ingress-related failures.

Technical Information

• Manufacturer: Stellantis (Citroën/Peugeot)
• Model: Peugeot 406 Estate (Combi)
• Product Codes: 6351H6
• Other Numbers: N/A

Compatibility And Fitment

Intended for the right rear inner tailgate lamp of Peugeot 406 Estate (Combi) models. Often searched and identified by the product code 6351H6. Verify fitment visually against the original socket and connector style before installation.

Function And Common Faults

The socket secures the bulb and provides electrical contact for the tailgate inner lamp (reverse/boot light or courtesy lamp depending on vehicle wiring). Common reasons for failure include corrosion from moisture ingress, heat damage from old bulbs, brittle plastic after long-term exposure, and connector or wiring fatigue. Failure symptoms are intermittent lighting, no light at all in the lamp position, blown fuses, or visible discoloration/melting of the socket.

Replacement Procedure

Basic steps for replacing the right rear tailgate inner lamp socket. Suitable for experienced DIYers and professional mechanics:

• Prepare Tools: Trim tools, flat screwdriver, pliers, electrical contact cleaner, new bulbs if necessary.
• Safety First: Disconnect the negative battery terminal before starting work to avoid short circuits while handling wiring.
• Access Lamp Assembly: Open tailgate, remove interior trim or access cover to reach the lamp housing.
• Remove Lamp Housing: Unscrew or unclip the lamp unit from the tailgate carefully.
• Disconnect Socket: Unplug the wiring connector and remove the old socket from the lamp housing. Cut damaged wires only if necessary and strip/crimp new connections accordingly.
• Install New Socket: Fit the new 6351H6 socket into the lamp housing, reconnect wiring, and use dielectric grease on contacts if available to reduce corrosion risk.
• Test Function: Reconnect the battery, test the lamp operation, then reassemble trim and secure all fasteners.

Installation Recommendations

Use correct-sized bulbs and inspect bulb holders for signs of overheating. Replace bulbs when installing the new socket to ensure reliable contact and prevent premature socket damage. Protect electrical contacts with dielectric grease and route the wiring away from pinch points. If wiring insulation is damaged, repair with heat-shrink tubing and proper connectors. For professional installations, use torque settings and fasteners recommended by the vehicle manufacturer.

Why This Part Commonly Fails

The socket is exposed to vibration, heat from bulbs and occasional moisture when the tailgate seal ages. Plastic becomes brittle over time and contacts corrode, leading to poor electrical contact or failure. Repeated bulb overheating or using incorrect bulbs accelerates degradation. Regular inspection during tailgate trim work helps detect wear early.

Notes For Buyers

This listing targets mechanics and competent DIY owners who search by part number (6351H6). The part is supplied with wiring as described. Replace bulbs when fitted to ensure optimal long-term performance.

Replace a damaged or missing right rear inner tailgate lamp with this direct-fit unit for Peugeot 406 Estate (Combi). Supplied without bulb sockets, this lamp restores interior tailgate illumination and maintains a factory appearance. Designed for professional mechanics and competent DIYers, the lamp is a cost-effective repair that improves safety and prevents water ingress into the tailgate cavity when fitted correctly.

Technical Information

• Manufacturer: Stellantis (Citroen/Peugeot)
• Model: Peugeot 406 Combi (Estate)
• Product Codes: 6351H6
• Additional Numbers: NFP

Compatibility

Intended For: Right Rear Inner Lamp Located In The Tailgate Of Peugeot 406 Combi (Estate) Models. Always Compare The Shape And Mounting Points With The Original Part Before Ordering To Ensure Correct Fitment.

Installation Recommendations

1. Remove Interior Tailgate Trim: Carefully unclip or unscrew the inner trim to access the lamp assembly.
2. Disconnect Electrical Connector: Unplug the lamp wiring harness. Inspect the connector for corrosion or damaged pins.
3. Unscrew And Remove Old Lamp: Remove retaining screws or clips and take out the old lamp module.
4. Fit New Lamp: Position the replacement lamp, secure with screws/clips and reconnect the wiring harness. Install bulb sockets and bulbs if required (sold separately).
5. Test Function: Check interior tailgate illumination and any related circuits before reassembling trim. Ensure seals are seated correctly to prevent moisture ingress.

Practical Tips: Use dielectric grease on electrical contacts to slow corrosion. Replace broken mounting clips to avoid vibration damage. If wiring shows signs of corrosion, repair or replace connectors to ensure reliable operation.

Most Common Cause Of Failure

Tailgate inner lamps typically fail due to moisture ingress and corrosion of contacts, cracked or damaged lens and plastic mounting tabs, or impact damage from loading/unloading luggage. Electrical contact wear and brittle plastic after many years exposed to temperature cycles also contribute to failure. Missing or damaged bulb sockets accelerate failure and lead to poor connection and intermittent operation.

Why Choose This Part

This lamp is a straightforward replacement for the original assembly with part code 6351H6 and provides the correct mounting geometry for the Peugeot 406 Combi tailgate. It is suitable for workshops and skilled DIY installers looking for a direct-fit solution. Supplied without bulb sockets so you can fit OE-style sockets or aftermarket options according to preference.

Recommendations For Fitment

• Verify Part Shape And Mounting Against The Removed Unit Before Final Installation.
• Replace Bulb Sockets And Bulbs If They Are Missing Or Corroded.
• Ensure Tailgate Seals Are Intact To Prevent Water Entry.