Description
Electric motor for the left front window regulator for PEUGEOT 407. With electric folding function to the car. Driver’s door.
Product Overview
This high-quality electric window motor is designed for the left front (driver’s) door of the Peugeot 407. It drives the window regulator mechanism to raise and lower the glass reliably and is commonly referenced by part numbers 9646594580 and 9221Z1. Ideal for professional workshops and DIY mechanics who need a direct-fit replacement to restore smooth window operation.
Key Features And Benefits
- Direct-fit replacement for left front window regulator motor on Peugeot 407.
- Robust gearbox and motor design for consistent performance under daily use.
- Often searched and fitted by product codes 9646594580 and 9221Z1 — saves time when ordering.
- Improves comfort and safety by restoring proper window operation.
Technical Information
- Manufacturer: Stellantis / Peugeot
- Model: Peugeot 407
- Product Codes: 9646594580, 9221Z1
- Other Numbers: 1137328125
Compatibility
Fitment: Left Front (Driver’s) Door. Designed for Peugeot 407 models. Check the part number against vehicle documentation or the existing unit before installation to ensure correct fit.
Function
The motor converts electrical input into rotary motion to drive the regulator mechanism, which converts it into the linear movement of the window glass. It provides the force required to lift and lower the window and interacts with the door switch and vehicle wiring for smooth operation.
Common Failure Causes
- Water Ingress: Moisture entering the door can corrode motor brushes and internal gears.
- Worn Brushes Or Brushes Holder: Electrical contact wear reduces motor performance until failure.
- Stripped Or Damaged Gears: Mechanical overload or age can damage internal gearing.
- Regulator Binding Or Broken Cables: Excessive friction increases motor load and leads to overheating.
- Corroded Or Loose Electrical Connectors: Poor power supply causes intermittent operation or no function.
Replacement Interval
There is no fixed lifespan; motors typically last many years but can fail sooner if exposed to water, heavy usage, or if the regulator is damaged. Inspect during door repairs or when windows become slow, noisy, or stop moving.
Installation Recommendations
- Safety First: Disconnect the vehicle battery before starting work to avoid short circuits and accidental movement.
- Door Trim Removal: Carefully remove the door card and any moisture barriers to access the regulator assembly.
- Support The Glass: Secure the window glass in the up position (tape or a support tool) before unbolting the motor/regulator.
- Electrical Connector: Disconnect the motor connector and inspect for corrosion; clean or replace as needed.
- Fitment: Unbolt the motor from the regulator, transfer any necessary mounting plates or clips, install the new motor, and torque fasteners to manufacturer recommendations.
- Test Before Reassembly: Reconnect the battery briefly to test window movement and correct function before refitting the door trim.
- Final Checks: Ensure smooth travel through the full range, no unusual noises, and that the window seals correctly.
Why Choose This Replacement
Using the correct part number (9646594580 / 9221Z1) ensures compatibility and reduces installation time. This unit restores reliable window operation and is suitable for both professional workshops and experienced DIY mechanics who expect a straightforward, direct replacement for the Peugeot 407 driver’s door.







