Description
Bulb socket with bulbs for the rear right lamp – passenger side. For Citroën Xsara Picasso vehicles. The socket is in perfect condition – fully functional. Delivery of bulbs or their functionality is not guaranteed.
This genuine-style bulb holder is intended for the rear right tail light on Citroën Xsara Picasso models. It is commonly searched by part numbers 9631563980, 6351N0 and 6351T2, so technicians and DIYers will find the correct fitting quickly. The socket secures the bulbs, provides electrical contact to the wiring harness and keeps the lamp assembly aligned and sealed against vibration.
Function And Application
The socket holds and connects the brake, tail and indicator bulbs in the right-hand rear lamp cluster (passenger side). It ensures steady electrical contact, correct bulb alignment and helps prevent short circuits caused by poor contacts or corrosion. Compatible With: Citroën Xsara Picasso (rear right lamp).
How To Replace On Vehicle
- Access Tail Light: Open the tailgate and remove any interior trim or carpet covering the lamp cluster retaining screws.
- Remove Lamp Unit: Unscrew the tail lamp assembly fasteners, pull the cluster gently out of the body, and support it to avoid breaking tabs.
- Disconnect Harness: Unclip the wiring connector from the lamp assembly and remove the old socket by twisting or releasing the retaining tabs.
- Install New Socket: Fit the new socket into the lamp housing until it locks. Reconnect wiring and refit bulbs of the correct type and rating.
- Test Function: Before final reassembly, check all lamp functions (tail, stop, indicator, reverse if applicable) to ensure proper contact.
- Reassemble: Refit the lamp assembly and interior trim, tighten screws to factory specification and confirm seals are intact.
Installation Recommendations
- Disconnect Battery: Always disconnect the vehicle battery before starting to avoid short circuits and to protect vehicle electronics.
- Check Bulb Types And Ratings: Use the correct bulb types and wattages recommended for Xsara Picasso to prevent overheating of the socket.
- Inspect Connectors: Clean any corrosion from the wiring connector and apply a small amount of dielectric grease to contacts to improve longevity and water resistance.
- Ensure Proper Seating: Make sure the socket and lamp cluster are seated and sealed correctly to avoid moisture ingress.
- Handle With Care: Lamp cluster plastics and retaining tabs become brittle with age—use proper tools and avoid excessive force.
Why This Part Most Commonly Fails
The most frequent causes of socket failure are corrosion from moisture ingress, heat damage from incorrect bulb wattage, cracked or fatigued plastic caused by vibration and aging, and poor electrical contact due to oxidized terminals. Water leaks at the lamp seal accelerate corrosion and short circuits. Replacing the socket and addressing seals or damaged connectors will often resolve intermittent lamp faults.
Technical Information
- Manufacturer: Stellantis / Citroën / Peugeot
- Model: Citroën Xsara Picasso
- Product Codes: 9631563980, 6351N0, 6351T2
- Other Numbers: 6351N0, 6351T2, 9631563980
Suitable For Professional Workshops And Skilled DIYers. Including The Exact Part Numbers In Your Search Will Help Locate This Socket Faster For Repairs Or Lamp Cluster Service.








