Description
Front Passenger Airbag for PEUGEOT 406
Product Overview
This genuine-style front passenger airbag is designed for Peugeot 406 vehicles and is listed under common part numbers 9633804080 and 821665. It Provides Primary Frontal Impact Protection For The Front Seat Passenger, Deploying In Severe Collisions To Reduce The Risk Of Head And Chest Injuries. Ideal For Professional Garages And Experienced DIY Mechanics Replacing A Deployed Or Faulty Unit.
Fitment And Compatibility
Fits Peugeot 406 Models. Check Vehicle Model And Part Number Before Installation. The Unit Is Commonly Searched By Product Codes 9633804080 And 821665, Which Helps Locate The Correct Replacement Quickly.
Technical Information
- Manufacturer: Stellantis / Peugeot
- Model: Peugeot 406
- Product Codes: 9633804080, 821665
- Other Numbers: NFP
Function And When Replacement Is Required
The Passenger Airbag Contains A Pyrotechnic Inflator And Cushion That Rapidly Inflates During A Significant Frontal Impact To Cushion The Passenger. Replacement Is Mandatory After Deployment Or When The Airbag Warning Light Indicates A Fault. Damage Can Also Occur From Water Ingress, Connector Corrosion, Or Previous Improper Repairs.
Typical Failure Modes
Most Common Reasons For Replacement Include Previous Deployment In A Crash, Electrical Faults Or Wiring Damage, Corroded Or Loose Connectors, And Fault Codes From Related Sensors Or Control Modules. Mechanical Damage To The Airbag Module Or Deterioration Of The Cushion Over Many Years Can Also Necessitate Replacement.
Installation Recommendations
Follow These Steps To Ensure A Safe Replacement:
- Disconnect The Negative Battery Terminal And Wait At Least 10 Minutes To Allow The SRS System To Discharge Before Starting Work.
- Remove Trim Panels And The Glovebox As Required To Access The Airbag Module; Keep Fasteners Organized.
- Handle The Airbag Module With Care, Facing The Inflator Away From Yourself. Store The Unit With The Inflator Facing Up If Temporarily Placed On A Bench.
- Inspect Wiring Harnesses, Connectors, And Occupancy Sensors (If Present) For Corrosion Or Damage; Replace Or Repair Faulty Components.
- Install The New Module Using The Correct Fasteners And Torque Values Per Manufacturer Specification Where Available; Reconnect The Battery And Verify That The Airbag Warning Lamp Extinguishes After System Self-Test.
- Clear Any Fault Codes With A Diagnostic Tool And Confirm Proper System Operation Before Returning The Vehicle To Service.
Notes For Mechanics And DIYers
This Airbag Is A Safety-Critical Component. While Replacement Can Be Performed In An Adequately Equipped Workshop, Strict Adherence To SRS Safety Procedures Is Essential. Use Proper Tools, Observe Electrostatic Discharge Precautions, And Verify That Related Sensors And Harnesses Are In Good Condition. Search By Part Numbers 9633804080 Or 821665 To Find Matching Units Quickly.








