Description
Window regulator motor for the left front window for PEUGEOT 407. With electric folding function to the vehicle. Driver’s door.
High-quality replacement power window motor for the left front (driver’s) door of the Peugeot 407. Designed for professional garages and experienced DIY mechanics who need a direct-fit unit to restore reliable window operation. The motor is commonly searched by OEM codes 9646594580 and 9221Z1, making it easy to find in parts catalogs. Installing this unit returns smooth up-and-down movement, reduces noise and jerky operation, and enables any integrated electric folding/closing features tied to the door mechanism.
Technical Information
- Manufacturer: Stellantis (Citroën/Peugeot)
- Model: Peugeot 407 (Left Front / Driver’s Door)
- Product Codes: 9646594580, 9221Z1
- Additional Numbers: NFP
Compatibility
Fits Peugeot 407 series (models produced approximately 2004–2011) for the left front door (driver’s side). Always verify the part code against the vehicle’s existing motor to ensure a direct replacement.
Function And Typical Faults
The power window motor converts electrical energy into mechanical motion to drive the window regulator, raising and lowering the glass. Common failure causes include worn carbon brushes, seized or damaged internal gears, water ingress and corrosion, frayed cables or regulator failure, and electrical faults such as a shorted winding or connector corrosion. Symptoms of a failing motor are slow or intermittent movement, grinding or clicking noises, or complete loss of window function.
Replacement Interval
There is no fixed mileage for replacement; lifespan depends on usage, exposure to moisture, and overall door maintenance. Typical failures occur after several years of use, often accelerated by water ingress, rust, or regulator binding that overloads the motor.
Installation Recommendations
- Disconnect the vehicle battery before starting work to avoid short circuits and accidental operation.
- Remove the door trim panel carefully and set aside retainers to avoid damage.
- Peel back the moisture barrier and disconnect the electrical connector to the motor.
- Support the glass in the up position (tape or a helper) before unbolting the motor/regulator assembly.
- Unbolt the motor from the regulator, transfer any required fittings, and fit the new motor in the correct orientation.
- Check regulator rollers/cables and lubricate sliding points with appropriate grease; replace worn regulator parts if necessary.
- Reassemble in reverse order, test window operation for smooth travel and correct alignment, then reattach the door trim.
Why This Part Is Important
A functioning window motor is essential for ventilation, driver safety and security. Replacing a worn motor with the correct-code unit restores reliable operation and prevents secondary damage to the regulator and glass caused by a failing drive unit.
