Description
Socket with bulbs for the right outer rear lamp of the CITROËN C4 B7 (second generation). Supplied with a short length of wiring.
This replacement bulb socket (bulb holder) is designed to restore reliable contact and lighting performance in the right outer rear lamp of Citroën C4 II vehicles. Ideal for professional mechanics and DIY enthusiasts, the unit includes the bulb sockets and a short pigtail wiring section for straightforward installation. The part is frequently searched by its product code (6351KS), so you can find and order it quickly when repairing rear light faults, burned contacts or damaged wiring.
Technical Information
- Manufacturer: Stellantis (Citroën / Peugeot)
- Model: Citroën C4 II (B7) – Right Outer Rear Lamp
- Product Codes: 6351KS
- Additional Numbers: Not Provided
Compatibility: Specifically intended for the right outer rear lamp on Citroën C4 II (second generation, B7). May also fit other Stellantis vehicles that use the same product code 6351KS — always verify physical match of connector and bulb types before fitting.
Replacement Procedure
- Open tailgate and remove the lamp cluster access panel or trim to reach retaining fasteners.
- Unscrew or unclip the rear lamp assembly and carefully pull it out to expose the wiring harness.
- Disconnect the original bulb holder from the vehicle connector and remove the old socket from the lamp housing.
- Fit the new socket into the lamp housing, route the short wiring pigtail as required and connect to the vehicle connector.
- Reinstall the lamp assembly, secure all fasteners, replace trim and test all light functions (tail, brake, indicator, reverse as applicable).
Installation Recommendations
Disconnect the negative battery terminal before starting work to avoid short circuits. Inspect the lamp housing seal and clean any corrosion from the connector pins. Apply a small amount of dielectric grease to the contacts to improve conductivity and prevent moisture ingress. Ensure bulbs are correctly seated and that wires are routed without tension or sharp bends. After installation, test all rear light functions and check for secure mounting and proper alignment.
Why This Part Fails Most Often
Bulb sockets commonly fail due to corrosion of the contact points from moisture ingress, heat damage from high-wattage bulbs or poor electrical contact, mechanical wear from vibration, and brittle or cracked plastic housings. Damaged wiring or connector pins can also lead to intermittent lighting or complete failure of the tail lamp circuit.
Choosing a correct-fit replacement socket and following proper sealing and contact maintenance during installation will significantly reduce the risk of repeat failures.
