Description
Bulb socket for the right rear lamp for first generation Citroën C1 and Peugeot 107. Functionality of the bulbs themselves is not guaranteed.
This replacement bulb socket is intended for the right-hand rear lamp on first generation Citroën C1 and Peugeot 107 models. It secures and connects the brake/taillight and indicator bulbs to the vehicle wiring harness. The part is commonly searched by OE and supplier numbers shown below, which makes identification and ordering straightforward for workshops and DIYers.
Technical Information
Manufacturer: Stellantis (Citroën / Peugeot)
Model: Citroën C1 (First Generation), Peugeot 107 (First Generation)
Product Codes: 634681, 81550-0H060
Other Numbers: 6351X8, 6351X6
Function And Application
The socket holds and electrically connects the rear lamp bulbs (tail/brake/indicator) to the vehicle’s wiring. It provides mechanical support, electrical contacts and, in many designs, a basic seal against moisture. This item is a direct-fit component for the right rear light cluster on the listed vehicles and is intended for use when the original socket is damaged, corroded or has poor electrical contact.
Replacement Procedure (Overview)
- Open the rear boot/trunk and remove interior trim panels or access flap to reach the lamp assembly.
- Unscrew or unclip the tail lamp fasteners and carefully withdraw the lamp housing from the body.
- Locate the bulb socket at the rear of the lamp housing, press the retaining tab and rotate or pull the socket out depending on the design.
- Disconnect the electrical connector, replace the old socket with the new one, reconnect and test the circuit before refitting the lamp housing.
- Reassemble the lamp and interior trim, ensuring all seals and fasteners are secured to prevent water ingress.
Recommendations For Installation
- Work on a cold vehicle and disconnect the battery if you will be handling multiple electrical connections.
- Check bulb condition before final assembly—this socket is supplied without guarantee of bulb functionality.
- Clean mating surfaces and connector pins; apply a light dielectric grease to contacts to reduce future corrosion.
- Inspect the lamp housing seal and replace if damaged to avoid moisture reaching the new socket.
- After installation, verify all light functions (tail, brake, indicator, and reverse if applicable) to ensure proper operation.
Why This Part Commonly Fails
The most frequent causes of socket failure are moisture ingress and corrosion of the electrical contacts, heat-related plastic degradation from bulb operation, mechanical damage during bulb changes, and general aging. Water or condensation inside the lamp accelerates corrosion and can cause intermittent connections or complete loss of contact. Poorly seated bulbs or vibration can also lead to cracked sockets or broken retaining tabs.
This socket is a practical, cost-effective repair for restoring reliable rear lamp connection and ensuring safe, legally compliant lighting on the road. Many professionals and DIY enthusiasts search by the OE numbers listed above when replacing this part.
