This right‑hand rear lamp socket with attached wiring harness is a direct‑fit spare for Peugeot 206 (3‑door and 5‑door) models from July 2003 onward. Commonly searched under product code 6351S0, the unit accepts P21/5W bulbs and provides the electrical connection for brake, tail and indicator lamps. Suitable for professional garages and skilled DIY mechanics who need a reliable replacement part to restore lighting functionality quickly.

Function

The socket secures the P21/5W bulb and provides the electrical contacts between the vehicle wiring loom and the rear lamp. It ensures correct current supply for tail lights, brake lights and turn signals, and holds the bulb in the proper position inside the lamp assembly. The attached wiring harness contains the connector that mates with the vehicle loom and may include a short pigtail for easy installation.

Replacement Procedure

Typical replacement is straightforward and can be completed by a competent mechanic or an experienced DIYer in 15–40 minutes depending on access. General steps:

• Disconnect the battery or at least isolate the circuit to avoid short circuits when working on lighting connectors.
• Access the rear lamp assembly from the boot or by removing the interior trim panel behind the passenger seat.
• Remove the lamp assembly retaining screws/clips and pull the lamp unit out far enough to reach the socket.
• Release the bulb socket from the lamp housing (twist or unclip depending on the lamp design) and unplug the harness connector from the vehicle loom.
• Install the replacement socket and wiring harness, ensure secure connector engagement and correct bulb seating, then reassemble the lamp and trim.

Technical Information

• Manufacturer: Peugeot (Stellantis)
• Model: Peugeot 206 (3‑door / 5‑door), from 07/2003
• Product Codes: 6351S0
• Other Numbers: 6351.S0, Bulb Type P21/5W
• Position: Right Rear (Passenger Side)

Installation Recommendations

• Before installation, inspect connector pins for corrosion or deformation; clean with electrical contact cleaner if necessary.
• Use dielectric grease on contacts to reduce future corrosion and improve longevity.
• Ensure bulbs are the correct type (P21/5W) and seat fully in the socket to avoid poor contact or overheating.
• Secure the wiring harness to prevent chafing against the bodywork and protect against water ingress.
• If multiple lamps behave irregularly after replacement, check fuses and ground connections before assuming a new part is faulty.

Most Common Cause Of Failure

Socket failures are usually caused by corrosion of the contact pins, heat stress from high‑wattage bulbs, vibration leading to cracked plastic or intermittent contact, and water ingress from worn seals or damaged lamp housings. Over time these factors cause poor electrical contact, flickering lights or complete lamp failure. Replacing the socket and addressing the root cause (seal replacement, securing the harness, correct bulb type) will restore reliable operation.

Looking for high-quality replacement parts for your Peugeot 206? Check out our original Right Rear Light, which is the perfect solution for 3/5 door models of the Peugeot 206. This part is specifically designed for installation on the passenger side and is compatible with vehicles manufactured from July 2003. Please note that the light is supplied without a socket, which can be purchased separately from us, providing you with a complete solution for your needs.

The light not only ensures functionality but also enhances the aesthetics of your vehicle while complying with all road safety standards. Replacement of the rear light may be necessary in the event of damage from an accident or as a result of natural wear and aging of the material. Installation is relatively simple and can be carried out independently following the recommended procedure or you can consult a professional mechanic to ensure that everything operates as it should.

Technical Information
Manufacturer: PSA Peugeot Citroën
Model: Peugeot 206, 3/5 Door
Product Codes: 6351S0
Other Numbers: Additional number information is not available.

This auto part is made from high-quality materials which ensure its long lifespan and high resistance to common wear and tear. The light is designed to meet the original specifications of your vehicle and provide the same, if not better functionality as the original part upon leaving the factory.