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.

Upgrade or replace the failing drive motor on the Driver’s Door of your Peugeot 407 with a direct-fit Electric Window Motor (Part Numbers: 9663036680, 9221Z1). Designed for professional workshops and competent DIY mechanics, this motor restores reliable up-and-down movement, improves comfort features and ensures smooth operation of the left front window. Commonly searched by its product codes, this unit is an exact-match solution for vehicles fitted with the described window mechanism.

Technical Information

• Manufacturer: Stellantis / Citroën / Peugeot
• Model: Peugeot 407 — Left Front Door
• Product Codes: 9663036680, 9221Z1
• Other Numbers: 1137328125

Function

The Electric Window Motor Converts Electrical Input Into Rotational Torque To Drive The Window Regulator Mechanism, Allowing The Glass To Raise And Lower Smoothly. On Vehicles Equipped With A Fold-In Feature, The Motor Works In Conjunction With Door Electronics To Achieve The Required Movement And Positioning.

Common Failure Causes

• Water Ingress And Corrosion Of Electrical Connectors Or Motor Housing Leading To Intermittent Or Permanent Failure.
• Wear Of Internal Brushes Or Commutator In The Motor, Resulting In Reduced Torque Or Complete Stop.
• Seized Or Damaged Window Regulator Gears, Cables Or Tracks Increasing Load And Overstressing The Motor.
• Debris, Misalignment Or Heavy Friction In The Window Channel Causing Excessive Current Draw.
• Thermal Overload Or Short Circuit In The Door Wiring Harness.

Replacement Procedure

General Steps For Removal And Installation (For Experienced Mechanics/DIYers):

• Remove Interior Door Trim Carefully To Access Regulator And Motor. Keep Fasteners Organized.
• Disconnect The Electrical Connector From The Motor.
• Detach The Motor From The Regulator Assembly (Usually Secured By Bolts Or Clips) And Remove The Regulator If Required.
• Compare The Replacement Unit With The Old Motor To Confirm Matching Mounting Points And Connector Type.
• Install The New Motor On The Regulator, Reconnect Wiring And Manually Check Free Movement Before Reassembly.
• Test Window Operation Several Times Using The Vehicle Controls To Confirm Smooth Movement And Fold-In Function Where Applicable.
• Reassemble The Door Trim And Verify All Functions After Installation.

Installation Recommendations

• Disconnect The Battery Before Starting Any Electrical Work To Reduce Risk Of Short Circuits Or Airbag Deployment Accidents.
• Inspect The Regulator Tracks, Rollers And Seals; Clean And Lubricate Sliding Points With Suitable Grease To Reduce Wear On The New Motor.
• Check Electrical Contacts For Corrosion; Clean Or Replace Damaged Connectors To Ensure Reliable Power Supply.
• Do Not Force The Window If Resistance Is Felt—Find And Rectify The Mechanical Cause Before Continuing.
• After Installation, Verify The Fold-In/Comfort Features Function Correctly Where Equipped.

Why This Part Pays Off

Replacing A Faulty Window Motor Restores Convenience, Security And Weather Sealing Of The Driver’s Door. For Workshops, Supplying A Part Identified By OE Codes (9663036680, 9221Z1) Reduces Diagnosis Time And Ensures A Fast Repair Turnaround.

Order This Electric Window Motor For Peugeot 407 If You Need A Direct Replacement For The Left Front Door, Identifiable By The Above Product Codes.