Part description

This used driver’s seat harness is intended for Peugeot 307 CC cars and is an important electrical component for the correct connection of the seat functions. Thanks to the design with seat heating control, it is suitable as a spare part if the original wiring is damaged, the wires are broken or the connectors are faulty.

When looking for the right part, the product number is particularly decisive, so we recommend comparing the markings on the original bundle and on the offered part. For car mechanics and do-it-yourselfers, this part is a practical choice when repairing the seat wiring without the need for complex interventions in the car’s original wiring.

Technical information

• Manufacturer: Stellantis Citroën Peugeot
• Model: Peugeot 307 CC
• Other numbers: 441334200, 6509Q0, NFP

Product codes

• Product codes: 441334200, 6509Q0
• Models: Peugeot 307, Peugeot 307 CC

Installation recommendations

Generally/typically for replacing a seat harness, the exact procedure may vary depending on the specific car design and type of seat attachment.

1) Before assembly

• Check that the connectors, harness length, wiring routing shape and part markings match the old piece.
• Check the condition of the insulation of the wires, connectors and any fixing elements.
• Before starting work, disconnect the battery and wait a reasonable time according to normal service practice, especially if there are other electrical components around the seat.

2) Necessary tools and materials

• Set of common hand tools
• Plastic pry bar for removing covers
• Flashlight
• Cleaning agent for electrical contacts
• Work gloves

3) Step-by-step assembly procedure

1. Secure the vehicle against movement and disconnect the battery.
2. Give access to the seat area and to the wiring underneath or in its immediate vicinity.
3. Carefully remove the covers that prevent access to the volume.
4. Document the original bundle management, for example with a photo before disassembly.
5. Disconnect all connectors of the old harness without using excessive force.
6. Release the bundle from the holders, clamps and guide points.
7. Compare the old and new part side by side, especially the connectors and the length of the individual branches.
8. Place the new bundle in the same routes as the original wiring.
9. Connect all the connectors one by one and check that they are properly secured.
10. Fix the bundle so that it is not stretched, does not break, and does not risk pinching when the seat moves.
11. Reinstall all covers and removed interior parts.
12. Connect the battery and verify the basic functionality of the electrical elements related to the seat and heater.
• 4) Post-assembly checks and test drive/function verification
  • Check that the connectors are tight and that no wire is under tension.
  • Verify the seat heating control function.
  • Check that there is no pull on the wiring when the seat is moved.
  • After a short test drive, visually check the harness fit again.

  5) The most common assembly mistakes + how to avoid them

  • Exchanging connectors – always compare the shape and position of individual connectors before connecting.
  • Pinch wiring – ensure proper routing away from the moving parts of the seat.
  • Insufficient fixing – use the original fixing points and clips.
  • Assembly without checking the condition of the part – check the insulation, pins and connectors before installation.
  • Work under voltage – always disconnect the battery before handling the wiring.

  Reasons why the part is damaged

  • Repeated movement of the seat and bending stress on the wiring
  • Pinching of the harness when handling the seat or during improper assembly
  • Damage of conductor insulation by rubbing against surrounding parts
  • Oxidation or contamination of electrical connectors
  • Interference with the original electrical installation and unprofessional repair
  • Higher heat load in the seat heating area
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