Description

Replacement bulb socket designed for the rear right tail lamp mounted in the wing of Citroën C4 Picasso models. The part includes a short length of wiring and the connector required to mate with the vehicle loom, making it suitable for direct replacement of a damaged or corroded lamp holder. Ideal for professional workshops and competent DIY mechanics who perform lamp and rear-body repairs.

Key Benefits

• Direct fit for the rear right (passenger side) lamp assembly.
• Included wiring piece reduces the need to splice or fabricate connections.
• Restores reliable electrical contact for brake, tail, and indicator bulbs.
• Useful spare when replacing a complete lamp unit or repairing water-damaged connectors.

Technical Information

• Manufacturer: Stellantis (Citroën / Peugeot)
• Model: Citroën C4 Picasso (rear right, wing-mounted tail light)
• Product Codes: 9653547480, 6351CA
• Other Numbers: 6351CA | 9653547480

Function

The socket secures the bulb in the rear right lamp assembly and provides the electrical connection between the lamp filament/LED module and the vehicle wiring harness. It ensures stable contact, correct bulb positioning and helps prevent short circuits or intermittent connections caused by corrosion or damaged terminals.

Common Failure Modes

This part most frequently fails due to water ingress and corrosion of the contacts, heat damage from an improperly seated or overloaded bulb, mechanical cracking from impact or repeated removal, and insulation wear leading to short circuits. Symptoms include flickering lights, intermittent operation, or complete loss of one or more rear lamp functions.

Installation Recommendations

Recommended for installation by experienced technicians or competent DIYers. Typical replacement steps:

1. Park the vehicle on a level surface and switch off the ignition.
2. Disconnect the negative battery terminal to avoid short circuits when working with rear lamp wiring.
3. Remove the interior trim or access panel in the boot to reach the lamp assembly fasteners.
4. Unscrew and gently withdraw the lamp unit from the wing to access the bulb holder.
5. Unplug the old socket from the vehicle connector and remove any damaged wiring or retained clips.
6. Fit the new bulb holder, connect the supplied wiring section to the vehicle loom using the original connector or approved splicing method, and secure all fixings.
7. Test all lamp functions (tail, brake, indicator, reverse if applicable) before reassembling trim.
8. Reconnect the battery and ensure all fasteners and seals are correctly refitted to maintain water resistance.

Use dielectric grease on terminals to improve contact longevity and help prevent corrosion. Replace damaged seals or gaskets to restore watertight integrity.

Why Replace This Part

Replacing the bulb holder is a cost-effective repair when the lamp unit itself is intact but electrical contacts or connector assemblies have failed. It restores reliable lighting and road safety without the expense of a full lamp replacement.

Compatibility Notes

Designed for Citroën C4 Picasso rear right (passenger side) wing-mounted lamp assemblies. Check the product codes 9653547480 and 6351CA when searching for exact matches to ensure correct fitment.

Product Overview

This rear right fender lamp is a direct-fit replacement designed for Citroën C4 Picasso models. Supplied as the lamp assembly for the passenger side (right rear), this unit restores rear lighting functions including tail/parking light, brake light and indicator depending on vehicle specification. Commonly searched under part numbers 9653547480 and 6351CA, the lamp is suitable for mechanics and DIY enthusiasts who need a reliable replacement for damaged or non-functional rear lighting.

Technical Information

• Manufacturer: Stellantis / Citroën
• Model: Citroën C4 Picasso (including Grand Picasso) — Passenger Side, Rear Right
• Product Codes: 9653547480, 6351CA
• Additional Numbers: NFP

Installation Recommendations

• Prepare basic tools: screwdriver set, trim tools, socket set and a torque wrench if required.
• Always disconnect the battery before starting work on electrical components to avoid short circuits and potential damage.
• Remove interior trim or access panel in the luggage compartment to reach the lamp mounting screws.
• Unscrew the lamp fasteners and carefully pull the lamp body out of the fender to access the electrical connector.
• Unplug the connector and remove the old lamp. If bulbs are separate, remove and replace bulbs as needed (sockets/bulbs can be purchased separately).
• Fit the new lamp, reconnect the electrical connector and secure all fasteners. Ensure sealing surfaces are clean to prevent water ingress.
• Reconnect the battery and verify all lighting functions (tail/parking, brake, indicator, fog/reverse as applicable) before finalizing trim reassembly.

Reason Why The Part Most Commonly Fails

The most frequent causes of failure are physical damage from impacts (parking bumps or minor collisions), cracked lenses, and water ingress due to degraded seals. Corrosion of connectors and broken mounting tabs from mechanical stress are also common. In many cases the lamp housing itself is intact while the socket or bulbs have failed; bulbs are often sold separately.

Notes For Mechanics And DIYers

This lamp is aimed at professional fitters and skilled DIYers who perform body or lighting repairs on Citroën C4 Picasso vehicles. When replacing the lamp, inspect adjacent wiring, the connector for corrosion and the condition of mounting points. Replacing the lamp assembly and renewing seals will prevent recurring moisture-related faults. Keep the part numbers (9653547480, 6351CA) handy when ordering or searching to improve match accuracy.

Reliable replacement bulb socket designed for the tailgate lamps of Citroën C4 Picasso and compatible Grand Picasso models. This socket secures the rear lamp bulbs, provides the electrical contact surface and includes a short length of wiring to simplify installation. Ideal for workshop technicians and DIY enthusiasts searching by part number (e.g. 9653547480, 6351CC, 9653547777, 6350CC), this unit restores stable lighting operation when the original socket shows signs of wear or electrical failure.

Technical Information

• Manufacturer: Stellantis / Citroën
• Model(s): Citroën C4 Picasso, Citroën C4 Grand Picasso
• Product Codes: 9653547480, 6351CC, 9653547777, 6350CC
• Other Numbers: 6351CA, 6351cc, 6350cc

Product Function And Benefits

The bulb holder (socket) provides mechanical support and the electrical contacts for rear tailgate bulbs (brake, indicator, tail lamp). A secure socket ensures consistent contact pressure and correct grounding to avoid flicker or intermittent failure. Supplied with a piece of wiring, this part helps when the original connector or short section of harness is damaged or brittle.

Common Failure Modes

• Corrosion of contact pins due to moisture ingress causing poor electrical connection and intermittent lighting.
• Heat-related deformation or melting from high-wattage bulbs or repeated thermal cycling leading to cracked plastic or loose contacts.
• Broken or frayed wires at the connector caused by repeated opening/closing of the tailgate and vibration.
• Burnt contacts from arcing when contact resistance increases.

Installation Recommendations

• Disconnect the battery before starting work to avoid short circuits and ensure safety.
• Remove the tailgate inner trim to access the lamp assembly. Keep fasteners and clips organised for reassembly.
• Unplug the lamp harness and remove the lamp cluster if required to reach the bulb holder. Note the orientation of the socket before removal (twist-lock or clip style).
• Carefully release the old socket (twist or unclip) and replace with the new unit. Ensure wiring is routed without pinching and that any seals are seated to prevent water ingress.
• Use dielectric grease on contact pins to reduce future corrosion and improve electrical reliability.
• After installation, reconnect the battery and test all rear lamp functions (tail, brake, indicator, reverse if applicable) before reassembling the trim.
• If the harness shows additional damage, repair or replace affected sections and ensure proper grounding.

Why Replace

Symptoms that indicate a failing bulb holder include flickering lamps, lamps that work intermittently, visible corrosion or melted plastic around the socket, or lights that fail only when the tailgate is moved. Replacing the socket and the short wiring piece is a cost-effective repair that restores safe, legal rear lighting and prevents further electrical damage.