Description
Right pyrotechnic seat belt pretensioner for Citroën C2, C3 and C3 Pluriel. Passenger seat.
Upgrade or replace the front passenger-side seat belt pretensioner with a reliable OE-matching unit designed for Citroën C2, C3 and C3 Pluriel models. This replacement pretensioner is the safety-critical component that tightens the belt instantly during a severe impact, reducing occupant movement and improving airbag interaction. Frequently searched by part numbers 9639873877, 8973TG and 8973TJ, this unit is suitable for professional garages and experienced DIY mechanics who maintain Peugeot/Citroën small cars. Use this part to restore proper seat belt restraint performance after deployment or electrical failure.
Technical information
- Manufacturer: Stellantis / Citroën
- Model: Citroën C2, Citroën C3, Citroën C3 Pluriel
- Product codes: 9639873877, 8973TG, 8973TJ
- Other numbers: 1007 (internal/category tag)
Function and application
The pyrotechnic pretensioner is integrated into the seat belt retractor assembly or buckle assembly on the passenger side and activates in milliseconds during a significant collision. It uses a small pyrotechnic charge to retract slack from the belt webbing, improving occupant containment and reducing forward excursion until the airbag deploys. This unit is intended for the front passenger seat of the listed Citroën models and must match the vehicle’s original specification and connector configuration.
Common reasons for failure
- Deployment in a prior accident – pretensioners are single-use devices and must be replaced after activation.
- Electrical faults – damaged wiring, corroded connectors or interrupted circuits in the SRS loop can render the pretensioner inoperative.
- Physical damage – mechanical impact, water ingress or severe interior damage can impair function.
- Age-related corrosion – long-term exposure to moisture and road salts may corrode contacts and fasteners.
Replacement and installation
Only install a pretensioner that matches the vehicle’s original specification and connector type. Before beginning work, disconnect the vehicle battery and wait a sufficient time (typically around 10 minutes) to allow SRS capacitors to discharge. Follow manufacturer procedures and torque settings for fasteners. Handle the unit carefully: do not strike, deform or attempt to disassemble the pyrotechnic assembly. Reconnect wiring securely and verify the SRS fault memory with appropriate diagnostic equipment after installation. If the vehicle has active SRS fault codes, clear and confirm with a diagnostic tool to ensure proper system operation.
Recommended installation notes
- Perform replacement with the vehicle on level ground and the ignition off.
- Use insulated tools and avoid static discharge; wear appropriate PPE.
- Always follow the vehicle manufacturer’s service manual for removal and fitting sequences and torque values.
- Do not attempt to repair or modify the pretensioner; replace with a correct, undamaged unit.
Why mechanics search by part number
Safety components are often identified and ordered by OE numbers to ensure exact fit and correct SRS integration. Searching by 9639873877, 8973TG or 8973TJ increases the chance of sourcing the compatible pretensioner for Citroën C2/C3 models quickly.
