Passenger Airbag Peugeot 406 9633804080 821665

Description

Front Passenger Airbag For Peugeot 406

This replacement front passenger airbag is designed for Peugeot 406 vehicles and is identified by OE/Product numbers 9633804080 and 821665. Ideal for professional garages and experienced DIYers, this airbag module restores passive safety after deployment or when the SRS system signals a fault. The part fits original mounting locations in the dashboard and matches the factory electrical connector layout for straightforward swapping where compatible.

Technical Information

• Manufacturer: Peugeot (Stellantis)
• Model: Peugeot 406
• Product Codes: 9633804080, 821665
• Additional Numbers: 821665 | 9633804080

Function And Application

The Passenger Airbag CushIon Is A Key Component Of The Supplemental Restraint System (SRS). It Contains The Inflator And Cushion Assembly That Rapidly Deploys In Moderate To Severe Frontal Impacts To Reduce Risk Of Injury To The Front Seat Passenger. This Unit Is Intended For Installation In The Dashboard Of Peugeot 406 Models And Works Together With Seatbelt Pretensioners And Crash Sensors.

Replacement Procedure

1. Safety First: Disconnect The Negative Battery Terminal And Wait At Least 10 Minutes To Allow The SRS Capacitor To Discharge.
2. Remove Dashboard Trim: Carefully Remove The Center Dash Trim Panels And Fasteners To Access The Passenger Airbag Module.
3. Unbolt The Airbag: Remove The Mounting Bolts/Screws Securing The Module. Support The Unit To Prevent Dropping.
4. Disconnect Connectors: Release The Electrical Connectors By The Manufacturer’s Clip Mechanism. Do Not Pull On Wiring.
5. Install New Module: Position The New Airbag, Connect Electrical Plugs Securely, And Refit Mounting Hardware To Specified Torque Values.
6. Reassemble And Test: Refit Trim, Reconnect Battery, And Verify SRS Indicator Behavior After Clearing Any Stored Fault Codes With Diagnostic Equipment.

Installation Recommendations

• Only Perform Work With The Battery Disconnected; Airbags Are Pyrotechnic Devices — Take Appropriate Precautions.
• Use Correct Tools And Torque Settings For Dashboard Fasteners To Avoid Damage.
• Handle The Airbag Module Gently, Store Face Up In A Safe, Dry Place, And Keep Away From Heat Sources.
• After Replacement, Use An OBD Diagnostic Tool To Clear SRS Faults And Confirm Proper System Operation.
• If You Are Not Confident With SRS Work, Have The Replacement Carried Out By A Qualified Technician.

Most Common Failure Reasons

• Deployment In A Collision: Airbags Must Be Replaced After Any Deployment.
• Electrical Faults: Corroded Connectors, Damaged Wiring Or Faulty Clock Spring/Crash Sensors Can Trigger SRS Warnings.
• Water Ingress Or Dashboard Damage: Moisture Or Physical Damage Can Compromise The Module.
• Age And Environmental Exposure: Corrosion And Connector Degradation Over Time May Cause Malfunction.

Part Numbers Like 9633804080 And 821665 Are Common Search Terms For Technicians Looking For A Direct Replacement For Peugeot 406 Dash Airbags — Use These Codes To Find The Correct Unit Quickly.