Description
Bulb holder – rear light – for Citroën Berlingo and Peugeot Partner first series. No Corrosion, Not Heat-Damaged, Fully Functional; Bulb Functionality Is Not Guaranteed.
This replacement bulb holder with a short piece of wiring is an economical and practical solution for restoring reliable rear light connections on first‑generation Citroën Berlingo and Peugeot Partner models. Designed to fit directly into the tail lamp assembly, the socket secures the bulb and provides the electrical contact needed for brake, tail and indicator lamps. Ideal for professional garages and DIY mechanics who need a quick repair using the original-style mounting and connector layout.
Technical Information
- Manufacturer: Stellantis (Citroën / Peugeot)
- Model: Citroën Berlingo; Peugeot Partner (First Series / First Generation)
- Product Codes: 634679
- Additional Numbers: None Known
Function And Application
The part secures and electrically connects rear light bulbs (tail, brake, indicator) to the vehicle wiring. It is mounted into the tail lamp housing and accepts standard automotive bayonet or push-in bulbs depending on the vehicle variant. The short pigtail harness simplifies replacement where the original socket or wiring has deteriorated.
How To Replace
Replacement is straightforward for a competent mechanic or experienced DIYer. Typical procedure:
- Open the tailgate or boot and remove the interior trim to access the rear lamp assembly.
- Disconnect the lamp connector and remove the lamp unit from the body by undoing the retaining screws or clips.
- Release the old bulb holder by twisting or unclipping it from the lamp housing and unplugging the pigtail.
- Fit the new holder into the lamp housing, ensuring the retaining tabs engage correctly and wiring is routed without pinch points.
- Reconnect the wiring harness, refit the lamp unit and interior trim, then test all lamp functions (tail, brake, indicator).
- Use Dielectric Grease On Contacts To Reduce Corrosion And Improve Longevity.
Installation Recommendations
- Inspect The Lamp Housing For Water Ingress Or Corrosion; Repair Seals If Necessary Before Installing The New Socket.
- Ensure Bulb Types Match Vehicle Specifications (Check Bulb Size And Wattage) To Prevent Overheating Or Premature Failure.
- Secure Wiring Away From Sharp Edges And Moving Parts; Use Cable Ties Where Appropriate.
- After Installation, Check All Rear Light Functions From Outside The Vehicle And With Someone Operating The Brake Pedal/Indicators.
Common Failure Reasons
Socket and pigtail failures usually result from:
- Corrosion At The Electrical Contacts Due To Moisture Or Damaged Seals.
- Heat Damage From Overwattage Bulbs Or Poor Contact Causing Localised Heating And Melting.
- Mechanical Wear, Vibration Or Impact Leading To Cracked Plastic Or Broken Tabs.
- Chafed Or Broken Wires From Incorrect Routing Or Abrasion.
Notes For Buyers
This item is supplied used but in clean condition with no visible corrosion and no heat damage. The socket assembly is presented as functional; however, the functionality of the bulbs themselves is not guaranteed. Verify fitment on first‑generation Citroën Berlingo and Peugeot Partner lamp assemblies using the product code 634679.







