Description
Socket with bulbs for left rear outer lamp Citroën C4 B7. Driver’s Side.
Product Overview
This tail light socket assembly is intended for the left outer rear lamp on Citroën C4 II (B7) vehicles. The unit holds the bulbs and provides the electrical and mechanical connection to the vehicle wiring harness. Often searched by part numbers 6350KS and 9687312180, this component is suitable for both workshop technicians and experienced DIY mechanics who need a straightforward replacement to restore reliable rear lighting.
Key Benefits
- Direct fit to the left outer rear lamp—no modification required on compatible models.
- Restores secure electrical contact and correct bulb positioning to prevent flicker and intermittent operation.
- Compact plug-and-play design simplifies replacement during routine lamp repairs.
- Commonly referenced by OEM codes 6350KS and 9687312180 for quick lookup in parts databases.
Installation
Replacement is straightforward for a competent mechanic or a DIYer with basic tools. Typical steps:
- Open Boot And Remove Inner Trim: Access the tail light cluster from inside the trunk by removing the trim panels and any fasteners.
- Unbolt Tail Light Assembly: Remove screws or bolts holding the outer lamp and carefully pull the lamp housing away from the body.
- Disconnect Wiring Connector: Unplug the lamp harness connector to free the assembly.
- Remove Old Socket: Turn and release the bulb holder/socket from the lamp housing (or unclip, depending on design) and extract the bulbs if needed.
- Fit New Socket: Insert the new socket into the lamp housing until it locks, replace bulbs if not included, reconnect the wiring connector and reassemble the lamp into the body.
- Test Operation: Verify all rear lamp functions (tail, brake, turn signal, reverse if applicable) before reinstalling trim.
Recommended Tools: Trim pry tools, Phillips or Torx drivers (depending on fasteners), gloves and a multimeter for troubleshooting continuity if required.
Installation Recommendations
- Inspect Wiring And Seals: Check harness connectors and rubber seals for corrosion or damage; replace damaged seals to prevent water ingress.
- Use Dielectric Grease: Apply a small amount of dielectric grease to metal contacts to improve corrosion resistance and electrical contact.
- Avoid Excessive Force: Handle plastic tabs and clips gently to prevent breakage during removal and installation.
- Verify Bulb Type And Fitment: Use the correct bulb types and ensure they are seated correctly to avoid overheating and poor contact.
Why The Part Commonly Fails
- Corrosion And Moisture Ingress: Water or condensation entering the lamp housing causes corrosion of contacts and poor conductivity.
- Heat And Thermal Cycling: Repeated heating from bulbs and cooling cycles can degrade plastics and contact springs, causing loose connections.
- Mechanical Damage: Rough bulb changes, impact, or damaged lamp housings can crack sockets or bend contacts.
- Electrical Issues: Overvoltage, poor grounding or worn wiring can accelerate contact wear and cause intermittent lighting faults.
Technical Information
- Manufacturer: Stellantis / Citroën
- Model: Citroën C4 II (B7) — Left Rear Outer Lamp
- Product Codes: 6350KS, 9687312180
- Other Numbers: 6350KS | 9687312180
Notes For Buyers
Searchable by the common part numbers 6350KS and 9687312180, this socket assembly is an efficient fix for lighting faults on the left outer rear lamp of Citroën C4 II models. Ideal for garages and competent DIYers who perform routine lamp and wiring repairs.
