Product Overview

This electric left front door lock (driver’s door) is a direct-fit replacement for the Peugeot 407. Designed for professional workshops and competent DIY mechanics, this unit restores reliable central locking operation, latch release and door security. Commonly referenced by OEM numbers 9683417880, 9135AY and 9135FN, the part is often searched by its product codes when ordering or diagnosing door locking faults.

Features and Function

• Electric Actuation: Operates central locking and remote key locking/unlocking for the left front (driver’s) door.
• Latching Mechanism: Engages and releases the door latch assembly, ensuring secure closure and correct opening.
• Integration: Works with vehicle wiring harness and central locking system; typically controlled by the body control electronics.
• Durability: Designed for long service life, but exposed to moisture and mechanical wear in door environment.

Compatibility

Compatible With: Peugeot 407 (Left Front / Driver’s Door). Always confirm the part number printed on the original unit or from parts documentation to ensure exact fitment. Common OEM references: 9683417880, 9135AY, 9135FN.

Technical Information

• Manufacturer: Stellantis (Citroën / Peugeot)
• Model: Peugeot 407
• Product Codes: 9683417880, 9135AY, 9135FN
• Additional Numbers: 9135FN

Installation Recommendations

• Safety First: Disconnect the vehicle battery before starting work to avoid short circuits and unintentional actuator operation.
• Access: Remove the interior door trim panel and the moisture barrier to reach the lock mechanism. Keep screws and clips organized for reassembly.
• Disconnect: Detach electrical connector and control rods/linkages from the lock. Note the orientation and routing of rods for correct reinstallation.
• Remove and Replace: Unbolt the lock from the door frame, transfer any required electronic plugs or retainers if applicable, and fit the new unit in the original position.
• Test: Reconnect the battery temporarily and test the actuator for remote locking/unlocking, manual operation from the interior handle and central locking sync before reassembling the door trim.
• Final Steps: Securely refit the moisture barrier and door card. Ensure all fasteners are tightened and the mechanism moves freely; apply light lubrication to moving parts if required.

Common Failure Causes

• Moisture Ingress: Water penetration into the door can corrode contacts or saturate internal components, leading to electrical failure.
• Mechanical Wear: Plastic gears or linkages inside the unit may wear or break over time, especially after many cycles or in older vehicles.
• Electrical Faults: Motor or switch failures, damaged wiring or poor connector contacts can interrupt actuator operation.
• Impact Damage: Door impacts or vandalism can deform the latch mechanism, preventing normal locking/unlocking.

Notes For Mechanics And DIY Enthusiasts

This part is suitable for professional installers and skilled DIYers. When replacing door lock actuators, document the rod positions and connector locations before removal to speed reassembly. Use quality trim tools to avoid damaging the door card and check the seal condition to reduce future moisture problems.

Search And Ordering Tips

Customers commonly search by part number: 9683417880, 9135AY, 9135FN. Including these references in your search increases the chance of finding the correct left front door lock for Peugeot 407.