Description
Electric window motor for the left front window for Peugeot 407 vehicles. With electric folding function for the vehicle. Driver’s Door.
High-quality replacement electric motor for the left front window regulator on Peugeot 407. Designed to restore reliable up-and-down movement of the driver’s side window, this motor is a direct-fit solution for workshops and DIY mechanics searching by OEM numbers such as 9663036680 or 9221Z1. The unit drives the regulator mechanism and integrates with the vehicle’s electrical system to deliver smooth, quiet operation and the electric folding-related function noted on some original equipment variants.
This part is intended for use by professional technicians and experienced DIYers. It is suitable when the window is slow, stuck, making grinding noises, or fails to move. Replacing the motor typically resolves issues caused by worn motor brushes, contaminated gearbox, water ingress, or seized regulator components. The motor runs on the standard 12 V vehicle electrical system.
Technical Information
- Manufacturer: Peugeot (Stellantis)
- Model: Peugeot 407
- Product Codes: 9663036680, 9221Z1
- Other Numbers: 1137328125
Fitment
Fits Left Front (Driver’s Door) on Peugeot 407 series. Typically compatible with 407 models produced in the mid-2000s (commonly referenced 2004–2011 production years); confirm physical match with the door regulator and connector layout before installation.
Installation Guidance
- Safety First: Disconnect the negative battery terminal before starting work to avoid short circuits and accidental window movement.
- Remove Door Trim: Carefully detach the door card and any vapor barrier to access the regulator and motor. Retain fasteners and clips for reassembly.
- Support Glass: Secure the window glass in the up position (use tape or a support) before unbolting the motor/regulator to prevent glass from dropping.
- Disconnect Electrical Connector: Unplug the motor connector and remove mounting bolts holding the motor to the regulator/door shell.
- Swap and Reassemble: Install the replacement motor, reconnect the electrical plug, reconnect the glass to the regulator, and test full travel before refitting the door trim.
- Final Checks: Verify correct operation, listen for abnormal noises, and ensure the window seals and tracks are lubricated for smooth movement.
Recommended Installation
We recommend replacing the motor on a supported workbench or with the door panel removed and the glass secured. Check the condition of the regulator (tracks, cables, sliders) while the motor is out—replacing a worn regulator at the same time avoids repeat removal. Use dielectric grease on electrical connectors and light lubricant on window channels. If corrosion or water ingress is present in the door, address sealing and drainage to extend the life of the new motor.
Why This Part Commonly Fails
Common failure modes include brush wear and commutator degradation inside the motor, water or dirt ingress causing electrical faults or gearbox corrosion, stripped or broken plastic gears, and mechanical jamming of the regulator (cable fraying or worn sliders). Frequent use, exposure to moisture, and lack of lubrication accelerate wear. Symptoms typically include slow movement, grinding or clicking noises, intermittent operation, or complete loss of function.
If you are searching by part number, this motor is often listed under OEM references 9663036680 and 9221Z1. Replacing the motor promptly when first symptoms appear prevents additional damage to the regulator and glass mechanism.
