This replacement electric central locking lock (left rear door) is designed for Peugeot 407 vehicles and restores reliable door latching and remote locking/unlocking. Ideal for professional workshops and DIY mechanics who search by OE number (often listed as 9659854180 or reference codes 9137K8 / 9137Q7). The unit operates the latch mechanism and links to the central locking system to lock and unlock the rear left door with the vehicle’s remote, central locking switch, or BSI commands.

Benefits And Key Features

– Direct replacement for the original door lock unit, matching OEM mounting points and electrical connector layout where specified.
– Restores secure door closure and prevents false open/lock signals that can cause central locking faults.
– Commonly sought by part number (9659854180) making it easy to find and replace the failing component.
– Durable construction with integrated electric actuator and mechanical latch gear.

Typical Symptoms Indicating Replacement

– Rear left door does not lock or unlock with remote or central locking switch.
– Intermittent operation or the door locks only after several attempts.
– Audible grinding or clicking inside the door when operating the lock (sign of worn gears or motor).
– Door remains ajar or does not latch properly after closing.

How The Part Works

The unit houses an electric actuator that drives the latch mechanism to engage or release the locking pawl. It receives low-voltage signals from the vehicle’s central locking control (via wiring and connectors) and converts them into mechanical motion that locks or unlocks the door. Proper function depends on a good electrical connection, intact linkage rods, and a mechanically sound latch assembly.

Installation Recommendations

– Always work in a safe environment with the vehicle stationary. Disconnect the negative battery terminal before starting to avoid short circuits and protect vehicle electronics.
– Remove the inner door trim/panel carefully to access the lock assembly. Take care with trim clips and any moisture barriers.
– Disconnect the electrical connector and detach the control rods/linkages from the lock unit. Note the orientation of rods for correct reassembly.
– Unscrew the retaining bolts and remove the old lock. Install the new unit, secure bolts to the correct torque, reconnect linkages and the electrical plug, and test operation before reassembling the door panel.
– After installation, verify central locking operation from the remote and from the master lock switch. Lubricate moving parts with suitable grease if necessary.

Why This Part Fails Most Often

– Water Ingress And Corrosion: Moisture can penetrate door internals, causing corrosion of electrical contacts and mechanical parts.
– Mechanical Wear: Plastic gears and small components inside the actuator wear out over time, especially on high-mileage vehicles.
– Motor Or Gear Failure: Actuator motor brushes or gears can fail, producing grinding noises and loss of function.
– Linkage Damage Or Misalignment: Broken or misaligned rods and clips prevent proper movement even if the actuator is functional.
– Electrical Issues: Connector corrosion or damaged wiring can interrupt the power supply to the actuator.

Technical Information

• Manufacturer: Stellantis (Citroën/Peugeot)
• Model: Peugeot 407 (including Sedan, SW and Coupé variants)
• Product Codes: 9659854180
• Additional Numbers: 9137K8, 9137Q7

Practical Tips For Mechanics

– Before replacing, check supply voltage and ground at the connector when operating the central locking to confirm the fault is in the actuator and not a wiring or control issue.
– Inspect door moisture seals and drainage to prevent repeat failures from water ingress.
– When fitting, ensure linkages move freely and that the latch engages fully; test both manual and remote locking cycles.
– Keep a record of the OE number (9659854180) when ordering to speed up sourcing and ensure correct fitment.

Why Choose This Unit

Replacing a faulty rear left door lock with the correct OE-referenced unit restores secure closure, prevents central locking errors, and avoids electrical faults caused by damaged actuators. The part is optimized for Peugeot 407 applications and is a common, direct-fit replacement sought by professionals and DIY enthusiasts alike.

This used electric door lock/central locking actuator is designed for the left rear door of the Peugeot 407 and is an ideal spare for workshops and DIY mechanics who need a direct-fit replacement by product number. The unit operates the central locking mechanism for the rear door, engages the latch and links to the interior locking rods and electrical connector. Commonly searched by part numbers, this component restores secure locking, eliminates intermittent operation and brings back smooth door latching.

Key Features

• Direct replacement for left rear door (driver’s side) on Peugeot 407.
• Compatible with part numbers 9686691980, 9137K8, 9137Q7 — often used in vehicle listings and spare-part searches.
• Electrical actuator that controls the latch, central locking and door locking/unlocking functions.
• Suitable for mechanics and experienced DIYers familiar with door trim removal and lock linkage reassembly.

Technical Information

• Manufacturer: Stellantis / Peugeot
• Model: Peugeot 407 (Left Rear Door / Driver’s Side)
• Product Codes: 9686691980, 9137K8, 9137Q7
• Other Numbers: 9137K8 | 9137Q7 | 9686691980

Installation Recommendations

• Disconnect the battery before starting work to avoid short circuits and to prevent accidental airbag deployment when removing the door trim.
• Remove the interior door panel carefully: detach clips, screws and any trim pieces; keep fasteners organized.
• Unplug the electrical connector to the actuator and note the routing of rods/linkages. Mark or photograph linkage positions to ensure correct reassembly.
• Unscrew the lock unit from the door shell, remove the actuator and separate it from the latch rods. Fit the replacement, reconnect rods and electrical connector, then test function before refitting the door card.
• Check and lubricate latch linkages with suitable grease to reduce wear and noise after installation.

Why This Part Fails Most Often

Failures typically occur due to mechanical wear of the internal gears, contamination from moisture or road salts, corrosion of electrical contacts and weakened actuator motors. Repeated use over years can cause plastic gear teeth to strip or small electric motors to fail, producing intermittent locking, complete loss of locking function or noisy operation. Water ingress from damaged door seals accelerates corrosion and mechanical wear.

Practical Tips

• Inspect door seals and drainage holes when replacing the lock to prevent premature failure from moisture.
• If the original unit shows intermittent electrical symptoms, inspect connector pins for corrosion and wiring for breaks before replacing.
• After installation, cycle the locks several times and verify remote locking, central locking synchronization and manual locking to ensure correct installation.

Suitable For

Peugeot 407 owners and professional garages looking for a replacement left rear door lock actuator identifiable by OEM numbers 9686691980, 9137K8 and 9137Q7. Ideal for restoring reliable central locking operation and door latching performance.

Original Equipment-Type Electric Door Lock Actuator for Peugeot 407 designed to restore reliable central locking function on the left rear (driver’s side) door. This actuator is commonly searched by OEM references and part numbers (9681337380, 9137K8, 9137Q7), so listing these codes increases findability for mechanics and DIY car owners. The unit replaces a faulty or noisy lock mechanism and directly controls the door latch and locking linkage, ensuring smooth locking/unlocking and secure door closure.

Technical Information

• Manufacturer: Stellantis (Peugeot/Citroën)
• Model: Peugeot 407
• Product Codes: 9681337380; 9681337380 M00
• Other Numbers: 9137K8; 9137Q7

Function And Benefits

The actuator is an electric motor-driven unit that operates the central locking mechanism and the door latch. It converts electrical signals from the central locking system into mechanical movement of the latch and linkage. Replacing a worn or failed actuator restores full locking/unlocking operation, eliminates grinding or intermittent locking, and prevents the door from failing to latch securely.

Typical Symptoms Of A Faulty Actuator

• Door Does Not Lock Or Unlock With Central Locking Commands
• Intermittent Operation Or Delayed Response
• Audible Grinding, Clicking Or Struggling Noises Inside The Door
• Door Fails To Latch Or Pops Open Slightly While Driving

How The Part Is Replaced (Overview)

Replacement is straightforward for an experienced technician or competent DIYer with basic tools. Typical steps:

• Remove The Inner Door Trim And Moisture Barrier To Access The Lock Module.
• Disconnect The Electrical Connector From The Actuator.
• Release Or Unclip Linkages Between Actuator And Door Latch (Note Orientation For Reassembly).
• Remove Mounting Screws Or Rivets Securing The Actuator And Extract The Unit.
• Install The New Actuator, Reconnect Linkages And Electrical Connector, Refit The Moisture Barrier And Door Trim.
• Test Central Locking Operation On All Doors And Verify Proper Latch Function.

Installation Recommendations

• Disconnect The Battery Before Starting Work To Avoid Short Circuits And Accidental Locking.
• Note The Exact Position Of Linkage Rods And Clips To Ensure Correct Reassembly.
• Inspect Wiring And Connector For Corrosion Or Damage; Clean Contacts If Necessary.
• Replace Any Broken Clips Or Fasteners During Reassembly To Avoid Future Rattles Or Misalignment.
• After Installation, Cycle The Central Locking Several Times And Check Door Latch Engagement At Different Lock Positions.
• Use Correct Torque On Fasteners And Ensure The Moisture Barrier Is Properly Seated To Prevent Water Ingress.

Why This Part Fails Most Often

• Water Ingress And Corrosion From Damaged Moisture Barrier Leading To Motor Or Switch Failure.
• Mechanical Wear Of Internal Gears Or Plastic Components Causing Grinding And Loss Of Drive.
• Broken Or Worn Linkage Clips And Rods That Place Extra Load On The Actuator.
• Electrical Issues Such As Shorted Wiring, Corroded Connectors Or Intermittent Power Supply.
• Frequent Use Over Many Years Accelerating Wear—Failure Is Typically Progressive, Not Sudden.

Practical Tips For Mechanics And DIYers

• When Replacing One Actuator, Inspect The Opposite Door And Other Locking Actuators—Similar Age Components Often Fail Soon After.
• Lubricate Moving Linkage Points And The Latch With Suitable Grease To Reduce Load On The Actuator.
• Keep A Record Of Part Codes (9681337380 / 9137K8 / 9137Q7) For Future Reference; Customers Often Search By These Numbers.

This actuator is aimed at professional workshops and competent DIY enthusiasts carrying out maintenance and repairs on Peugeot 407 vehicles. The listed OEM references help ensure you order the correct replacement part for the left rear (driver’s side) door.

This Electric Central Locking Latch is a direct-fit replacement designed for the left rear door of Peugeot 407 models. Built for professional workshops and DIY mechanics, the unit restores reliable locking and unlocking via the vehicle’s central locking system. The latch is a common spare part searched by its product numbers (9660699280, 9137K8, 9137Q7) and is suitable for technicians who need a straightforward, durable repair solution.

Fitment And Compatibility

Fits Peugeot 407 models (Sedan, SW, Coupé) for the left rear door — the door located behind the driver. Always verify the part number against the damaged unit: common references include 9660699280, 9137K8 and 9137Q7.

How The Part Works

The latch is an electromechanical actuator that interfaces with the vehicle’s central locking system. When the lock command is received (remote or interior switch), the actuator moves the locking striker and operates the mechanical latch. It also allows manual operation from the interior handle or the key cylinder when present.

How To Replace (Basic Steps)

• Disconnect The Battery Before Starting To Prevent Short Circuits And Protect Vehicle Electronics.
• Remove The Interior Door Trim Carefully To Access The Locking Mechanism. Keep Fasteners Organized.
• Peel Back The Moisture Barrier And Locate The Lock Actuator Assembly.
• Disconnect The Electrical Connector And Any Linkage Rods Or Cables Attached To The Latch.
• Remove Mounting Screws/Bolts Securing The Latch, Extract Old Unit And Install The Replacement.
• Reconnect Linkages And Electrical Connector, Test Lock/Unlock Function Before Reassembling The Door Trim.
• Reinstall Moisture Barrier And Door Trim, Reconnect Battery And Perform Final Function Check.

Installation Recommendations

• Use Proper Trim Tools To Avoid Damage To Panels And Clips.
• Inspect The Linkage Rods, Clips And Door Striker For Wear Or Misalignment; Replace If Needed.
• Apply Light Lubrication To Mechanical Pivot Points; Avoid Getting Lubricant On Electrical Connectors.
• Test Electrical Connector For Corrosion Or Poor Contact; Clean Contacts If Necessary Before Reinstallation.
• After Installation, Cycle Locking Several Times To Ensure Smooth Operation Before Final Assembly.

Common Failure Causes

Lock actuators and latches typically fail due to water ingress, corrosion of electrical contacts, mechanical wear of gears or plastic components, and broken linkage clips. Symptoms include intermittent or complete loss of locking/unlocking on the affected door, unusual noises during operation, or the door not latching properly.

Technical Information

• Manufacturer: Stellantis / Citroën / Peugeot
• Model: Peugeot 407
• Product Codes: 9660699280
• Other Numbers: 9137K8, 9137Q7, E 00

Why Choose This Replacement

This latch provides a direct repair option to restore central locking function on the left rear door of the Peugeot 407. The part numbers included make it easy to find the correct replacement, and the design matches OEM mounting and electrical interfaces for straightforward installation by professionals and experienced DIYers.