Description
Window regulator motor for the right front window for PEUGEOT 407
With electric folding function to the vehicle
Front Passenger Door
This electric window motor is a direct-fit replacement for the right front (passenger) door of the Peugeot 407. Identified commonly by the part numbers 1137328127 and 9222Y9, it restores reliable up-and-down window movement and supports the electric folding function described in the original item notes. Designed for mechanics and DIY enthusiasts, the unit brings back smooth operation to worn or failed window systems and helps avoid rattles, slow movement, or complete inoperative windows.
Technical Information
- Manufacturer: Stellantis / Citroën / Peugeot
- Model: Peugeot 407
- Product Codes: 1137328127, 9222Y9, NFP
- Other Numbers: 1137328127 | 9222Y9 (common reference codes)
- Electrical System: 12V DC (standard for passenger vehicles)
- Location: Right Front Door (Front Passenger Door)
Installation Recommendations
Replacement is straightforward for a qualified mechanic or an experienced DIYer familiar with door trim removal. Typical steps:
- Disconnect the negative battery terminal before starting electrical work.
- Carefully remove the door trim panel and protective vapor barrier to access the regulator and motor assembly.
- Disconnect the motor electrical connector and remove the fasteners securing the motor to the regulator or door frame.
- If the motor is integrated with the regulator, release the regulator mounting points and lower the glass to a safe position before removing the assembly.
- Install the new motor in the reverse order: secure mechanical fastenings, plug in the connector, and test full up/down travel before reattaching the trim panel.
- Lubricate window channels and regulator sliding points with a light white lithium grease or manufacturer-recommended product to reduce wear and prevent binding.
- Check window alignment and correct any guide or regulator misalignment to avoid premature motor overload.
Most Common Failure Reasons
- Water ingress and corrosion in the door, leading to connector or motor deterioration.
- Worn brushes or internal commutator wear in the motor after many cycles.
- Mechanical stress from a seized or damaged regulator or bent guide rails causing the motor to overload.
- Frayed or broken regulator cables and stripped gears inside the regulator assembly.
- Poor electrical contacts or damaged wiring at the door harness and connector.
Common search terms: Peugeot 407 window regulator motor, window motor right front, 1137328127, 9222Y9, passenger door window lifter motor. Choosing the correct part number speeds up finding the exact replacement and ensures fitment for the Peugeot 407 right front door.
