Description
Wiring harness for the left and right rear lamps for Citroën C8 vehicles. Functionality of the bulbs themselves is not guaranteed.
This rear lamp wiring harness services both the left and right tail light assemblies on Citroën C8 (and compatible models). It provides the necessary connector plugs, wire routes and grounding points to deliver power and signals to brake lights, turn indicators, reverse lights and rear fog lamps. Supplied under the code 6534KJ, the harness is frequently searched by its product number and is aimed at professional mechanics and experienced DIYers performing bodywork or rear lighting repairs.
The harness is a direct replacement part designed to restore electrical continuity where the original looms have been damaged by corrosion, mechanical wear or accidents. Because bulbs are not included or guaranteed, verify lamp bulbs and fuses separately when diagnosing a non-functioning rear lamp circuit.
Technical Information
- Manufacturer: Stellantis (Citroën / Peugeot)
- Model: Citroën C8; Peugeot 807
- Product Codes: 6534KJ
- Other Numbers: Not specified
Installation Recommendations
Before starting, disconnect the negative battery terminal to avoid short circuits. Remove the rear lamp cluster trim and unscrew the lamp housing to access the factory wiring connectors. Unplug the original harness connectors and note routing clips and grommets. Install the new harness by following the original routing path, secure all clips and grommets to prevent chafing, and reconnect connectors firmly—ensure locking tabs engage. Refit the lamp housing and trim, reconnect the battery, and test all light functions (brake, indicator, tail, reverse and fog) before finishing.
Most Common Failure Causes
Rear lamp harnesses typically fail due to moisture ingress and corrosion at connector pins, mechanical damage from impacts or improper routing, abrasion where the loom rubs against body panels, heat degradation near lamp sockets, or poor grounding. Rodent damage can also chew wiring looms in some cases. When replacing the harness, inspect connectors, bulb holders and ground points and repair any related issues to avoid repeated failures.
Tip: When diagnosing rear light faults, check fuses, bulb condition and connector corrosion first—replacing the harness is the correct step if wires are broken, pins are corroded beyond repair, or insulation is compromised.
