The catalytic converter plays a crucial role in the exhaust system by reducing harmful emissions. It is essential for meeting environmental standards and maintaining optimal engine performance. Installation is straightforward and requires no special modifications, making it a perfect choice for quick and effective replacement.

Technical Information:

Manufacturer: PSA Citroën Peugeot
Model: Citroën C4, Citroën C4 Picasso, Citroën C5, Citroën C5 X7, Peugeot 307, Peugeot 407
Product Codes: 0341K9
Additional Numbers: K396

When replacing the catalytic converter, it is recommended to inspect other exhaust system components to ensure peak efficiency of the new part. This catalytic converter is compatible with the above Citroën and Peugeot models, making it a versatile solution for owners of these cars. Always verify engine specifications and model version to ensure proper fitment.

Investing in a quality original catalytic converter not only extends your vehicle’s lifespan but also contributes to environmental protection by lowering harmful emissions. Choose this genuine part to keep your vehicle running efficiently and trouble-free.

This catalytic converter is ready for immediate installation and delivery, enabling you to return your vehicle to operation with minimal downtime. Order now to secure a reliable part for your Citroën or Peugeot without delay!

This front exhaust pipe (part number 1706J1) is a direct-fit component suitable for a range of Citroën and Peugeot models equipped with 1.8 16V or 2.0 16V engines. Designed for professional workshops and competent DIYers, the pipe restores correct exhaust routing, helps maintain backpressure characteristics and prevents exhaust leaks at the front section of the system.

Technical Information

• Manufacturer: Stellantis (Citroën/Peugeot)
• Model: For Citroën C4, Citroën C4 Picasso, Citroën C5, Citroën C5 X7, Peugeot 307, Peugeot 407
• Product Codes: 1706J1
• Additional Numbers: Removed From Vehicle Mileage: 83,000 km

Compatibility

Fits vehicles with 1.8 16V and 2.0 16V petrol engines from the Citroën/Peugeot family as listed above. Always check the part number 1706J1 against the part required for your specific model and engine variant before ordering.

Function

The front exhaust pipe routes exhaust gases from the engine and connects the manifold or downpipe to the subsequent sections of the exhaust system (catalyst/resonator). It must maintain a gas-tight seal at flanges and joints and withstand high temperatures, vibration and road conditions.

How To Replace

1. Raise the vehicle safely and support it on axle stands with the parking brake engaged.
2. Support the exhaust downstream of the section to be removed to avoid strain on mounts.
3. Loosen and remove flange bolts or clamps connecting the front pipe to the manifold/catalyst and the mid/downpipe. Penetrating oil may be required on corroded fasteners.
4. Remove worn gaskets and inspect flange faces for damage. Replace gaskets and any corroded or damaged bolts/studs.
5. Fit the new pipe, hand-tighten connections, lower the vehicle slightly to settle the exhaust into hangers, then torque fasteners to manufacturer specifications.
6. Start the engine and inspect for leaks, rattles and correct alignment. Re-torque fasteners after a short test drive if necessary.

Installation Recommendations

• Use new exhaust gaskets and new bolts/nuts or high-quality clamps when reassembling.
• Apply high-temperature anti-seize to bolts to ease future removal.
• Observe manufacturer torque specifications for flange fasteners; if unknown, consult official workshop manual.
• Inspect rubber hangers and replace any that are cracked or stretched to prevent undue stress on the new pipe.
• Check surrounding components (heat shields, brackets, catalyst connection) for wear and address as needed to avoid premature failure.
• If you are not confident with exhaust work or if fasteners are heavily corroded, have the replacement performed by a professional workshop.

Why The Part Most Commonly Fails

Front exhaust pipes usually fail due to corrosion from road salt and moisture, prolonged exposure to heat cycles that weaken material and welds, mechanical damage from road debris or bumps, and fatigue at flange areas or flex joints. Leaks often appear first at flanges, welded seams or where hangers allow excessive movement.

Order this 1706J1 front exhaust pipe to restore proper exhaust sealing and routing on compatible Citroën and Peugeot vehicles. Suitable for mechanics and experienced DIY installers looking for an OE-fit component.