Used Pyrotechnic Driver Seat Belt Pretensioner (Pyropás) compatible with Citroën C4 and Peugeot 307 five‑door models. This safety‑critical component tightens the lap/shoulder belt immediately upon severe impact to reduce occupant movement and improve airbag effectiveness. Often referenced and searched by part numbers listed below, the unit is intended for professional replacement by mechanics or experienced DIYers equipped with appropriate tools.

Technical Information

• Manufacturer: Stellantis (Citroën / Peugeot)
• Model: Citroën C4 (I) / Peugeot 307 (Five‑Door)
• Product Codes: 96346431XX, 96527697XX, 8974T9
• Additional Numbers: 8974.T9

Features And Function

The unit is a pyrotechnic pretensioner integrated with the driver seat belt retractor. On detection of a qualifying collision, a small pyrotechnic charge activates and rapidly retracts the webbing to remove slack, securing the occupant tightly to the seat. This action complements airbag deployment and is a one‑time activation safety device.

Common Faults And Why It Fails

• Activation During A Collision: The pretensioner Is Designed To Deploy Once In A Crash And Must Be Replaced After Activation.
• Electrical Or Connector Damage: Corrosion, Broken Wires Or Poor Contacts Can Prevent Proper Signal Transmission.
• Mechanical Wear Or Jamming: Retraction Mechanism Can Become Stiff Or Blocked By Debris, Affecting Locking Function.
• Previous Repair Damage: Incorrect Removal Or Impact Damage From Prior Repairs Can Compromise The Unit.

Installation Recommendations

• Always Disconnect The Battery Before Starting Work And Wait At Least The Manufacturer‑Recommended Time To Allow SRS Capacitors To Discharge.
• Follow Manufacturer Procedures And Trim Removal Sequence To Avoid Damaging Airbag Modules Or Wiring Harnesses.
• Unbolt The Retractor And Carefully Disconnect The Electrical Connector; Avoid Pulling On Wires.
• Install The Replacement Unit In The Correct Orientation, Route The Belt Webbing According To Factory Guides And Tighten Fasteners To Manufacturer Torque Specifications.
• After Installation, Perform An SRS Diagnostic Check And Clear Any Crash Codes Using A Suitable Diagnostic Tool; Verify System Status Before Returning The Vehicle To Service.
• If You Are Not Experienced With SRS Systems, Have The Replacement Performed Or Checked By A Qualified Technician.

Why Use Part Numbers For Search

Mechanics And DIY Customers Frequently Search By Reference Number (96346431XX, 96527697XX, 8974T9). Using These Codes Ensures Faster Identification Of The Correct Replacement For Specific Citroën And Peugeot Chassis Variants.

Important Safety Note

Do Not Reuse A Deployed Pretensioner. Replacement Of Any Pyrotechnic Restraint Component Should Comply With Vehicle Manufacturer Safety Instructions. Improper Handling Can Result In Personal Injury Or Failure Of The Restraint System.

High-quality replacement driver-side seat belt designed for five-door Citroën C4 and Peugeot 307 models. This unit matches original equipment specification and is commonly sought using part numbers 96527697XX or 8974T9. Ideal for professional garages and experienced DIYers performing SRS-related repairs, the belt restores occupant restraint performance after wear, damage, or pretensioner deployment. Fitment focused on five-door body variants and original mounting points ensures straightforward replacement when the correct part code is used.

Technical Information

• Manufacturer: Stellantis (Citroën/Peugeot OEM)
• Model: Citroën C4 I (Five-Door), Peugeot 307 (Five-Door)
• Product Codes: 96527697XX, 8974T9
• Additional Numbers: 8974.T9, 8974.T9/8974T9 variants

Installation Recommendations

Always follow safe working procedures when replacing a seat belt, because modern belts often incorporate pretensioners connected to the SRS system. Before starting, disconnect the vehicle battery and wait at least 10 minutes to allow SRS capacitors to discharge. Remove the B‑pillar trim to access the retractor, unbolt the lower anchor and shoulder guide fasteners, and disconnect any electrical connector for the pretensioner. Install the new belt in the reverse order using the manufacturer’s torque specifications for all fasteners. After installation, reconnect the battery and verify SRS/airbag system status with diagnostic equipment; clear any fault codes only after confirming correct fitment and connections.

How Replacement Is Performed

Typical replacement steps: remove interior trim on the B‑pillar, release the lower anchor cover, unfasten the retractor and lower anchorage bolts, unplug the pretensioner connector if present, fit the new belt and secure all bolts to the correct torque, reconnect the pretensioner connector, reassemble the trim. Finish with a system check using a compatible diagnostic tool to confirm SRS status and that no warning lights remain.

Why The Part Fails Most Often

• Wear And Damage: Webbing frays, cuts or heavy soiling reduce effectiveness and require replacement.
• Pretensioner Deployment: After a collision the pyrotechnic pretensioner is activated and the belt assembly must be replaced.
• Retractor Failure: Locking or non‑retracting mechanisms can seize due to contamination, corrosion or internal spring failure.
• Connector Or Wiring Issues: Corroded or damaged pretensioner connectors can cause SRS fault codes or prevent pretensioner activation.

Service Advice

Replace any belt that shows visible damage, does not retract smoothly, or triggers SRS warnings. Use the exact product codes for ordering to ensure correct fitment. When in doubt about SRS diagnostics or pretensioner handling, have the work carried out or checked by a qualified technician with PSA-compatible diagnostic equipment.

This pyrotechnic driver-side seat belt is designed for Peugeot 307 and Citroën C4 five-door models and is supplied with OEM reference numbers for fast identification (96527697XX / 8974T9). It is a safety-critical component intended for professional workshops and experienced DIYers who maintain or repair Stellantis vehicles. The assembly combines a webbing strap, retractor with locking mechanism and an integrated pretensioner designed to reduce occupant movement in the event of a collision. Replace the unit after any deployment or if the mechanism, webbing or connectors show visible damage.

Key Benefits

– Direct-fit replacement for driver-side application on supported models, using original-style fastening points for reliable alignment and operation.
– OEM part references included to simplify ordering and inventory lookup.
– Restores occupant restraint performance after damage or pretensioner activation.

Fitment and Compatibility

Designed for the following applications (verify model/body type before installation):

• Peugeot 307 (five-door) — Driver’s side
• Citroën C4 (five-door, first generation) — Driver’s side

Technical Information

• Manufacturer: Stellantis (Peugeot / Citroën)
• Model: Peugeot 307 (5-door); Citroën C4 I (5-door) — Driver’s Side
• Product Codes: 96527697XX, 8974T9
• Other Numbers: 8974.T9

Installation Recommendations

Safety-first steps for installation (recommended for professional technicians or experienced DIYers):

• Disconnect the vehicle battery and wait at least 10 minutes (or follow manufacturer-specified waiting time) before starting work to avoid accidental SRS deployment.
• Remove interior trim panels carefully to gain access to the retractor and lower anchorage. Keep fasteners and clips for reuse if undamaged.
• Label and disconnect the pretensioner electrical connector before unbolting the unit. Handle pyrotechnic components with care.
• Unbolt the retractor and buckle from their mounting points. Replace the unit with the correct orientation and routing of the webbing.
• Tighten mounting bolts to the manufacturer’s torque specification and reconnect the pretensioner connector securely.
• After installation perform an SRS system scan and clear any fault codes with appropriate diagnostic equipment. Observe the vehicle manufacturer’s commissioning procedures.
• Do not reuse a belt or pretensioner that has been deployed or shows visible damage; pretensioners are single-use safety devices.

Why This Part Most Commonly Fails

Seat belts with integrated pretensioners typically require replacement for the following reasons:

• Deployment During Collision: The pyrotechnic pretensioner activates in an impact and must be replaced after activation.
• Webbing Wear or Damage: Cuts, fraying, contamination or excessive soiling reduce restraint effectiveness and can prevent smooth retraction.
• Retractor Malfunction: Dirt, corrosion or internal failure can cause the retractor to stick or fail to lock properly.
• Electrical/Connector Faults: Corroded or damaged wiring/connectors can prevent pretensioner arming or trigger SRS faults.

Practical Tips

• Always inspect the entire restraint assembly (webbing, buckle, anchor points and pretensioner connector) when replacing a belt.
• Record that the seat belt was replaced in the vehicle’s service history and note any SRS codes cleared after installation.
• If in doubt, have installation and SRS diagnostics performed by a workshop equipped for Stellantis vehicles to ensure system integrity.

OEM references included in this listing (96527697XX / 8974T9 / 8974.T9) speed up identification and ordering for Peugeot 307 and Citroën C4 five-door driver-side replacements. Suitable for professional mechanics and competent DIYers familiar with SRS safety procedures.