Original PSA pipe (coolant line) – used original parts for Peugeot and Citroën. With OEM numbers 9658227580 and 6477 36 (647736) you can quickly verify correct compatibility and avoid installation problems. This is an aluminum air conditioning pipe for systems with R134a refrigerant, designed to connect air conditioning components (exact route according to the specific equipment of the car – check according to the part number and shape).

Compatibility and models
– Peugeot 308 I (T7)
– Peugeot 3008 I (T84)
– Peugeot 5008 I (T87)
– Peugeot RCZ (T75)
– Citroën C4 (B7) and C4 Picasso I
Note: Always confirm compatibility by VIN and OEM number. Some cars may have a different wiring variant depending on the motorization or compressor/condenser type.

OEM and reference numbers
– PSA: 9658227580 (also listed as 96 582 275 80)
– PSA: 6477 36 (647736)
Use these codes to search and compare to your original work.

Technical information
– Part type: air conditioning pipe / coolant line (AC line)
– Material: aluminum pipe with fittings for O-rings
– Medium: R134a (common for the mentioned models in the given years)
– Sealing: HNBR O-rings – we recommend always installing new ones
– Purpose: connection of selected elements of the A/C system (compressor, condenser, dryer, etc.) – route according to the OEM number

Condition and finish
– Used original part from disassembly, bears normal signs of use
– Supplied without new seals and accessories, compare condition and shape according to photos and part numbers
– PSA original – exact fit and compatibility with car mounts and mounts

Installation recommendations
– Clean the seats carefully before assembly, use new O-rings and oil compatible with R134a
– After closing the system, perform a vacuum and leak test, fill according to the car label
– When opening the system, it is advisable to replace the dryer/filter and flush the remaining line
– Follow the tightening torques and procedure according to the manufacturer’s service data, do not bend or deform the pipe

Typical symptoms of a defect in the original pipe
– Coolant leakage (greasy maps at the joints or on the pipe)
– Corrosion, crack or mechanical damage
– It does not hold pressure, the air conditioner does not cool

Search keywords
Air conditioning pipe Peugeot 308 3008 5008 RCZ, Citroën C4 C4 Picasso, coolant line, air conditioning pipe, air conditioning hose, AC line, OEM 9658227580, 6477 36, 647736, PSA.

If you’re not sure, send the VIN – we’ll verify the correct part.

Product Overview

This air conditioning pipe is designed for Citroën and Peugeot models equipped with R134a refrigerant circuits. It replaces deteriorated or damaged refrigerant lines to restore proper coolant flow, prevent leaks and ensure efficient air conditioning performance. The part is commonly referenced by manufacturer codes and OE numbers, which makes it easy for technicians and DIY enthusiasts to search and identify the correct replacement.

Key Benefits

• Direct-fit replacement for specified Citroën and Peugeot models.
• Restores system integrity and helps prevent refrigerant leakage.
• Maintains correct refrigerant flow for efficient climate control operation.
• Supplied to match original connection types and mounting points.

Technical Information

• Manufacturer: Stellantis (Citroën / Peugeot)
• Model: Citroën C4, Citroën C4 II, Citroën C5 II, Peugeot 307, Peugeot 407
• Product Codes: 6460JA, 6460JC, 6460PW, 647736, 647738
• Additional Numbers: R134a

Compatibility Notes

Compatibility is primarily determined by the vehicle model and the original part number. These pipes are intended for the models listed above; however, variations in engine, production year, and factory options can affect fitment. Always verify the reference number against the part being replaced when possible.

Installation Recommendations

• Have the refrigerant properly recovered by a certified recovery machine before removing the old pipe—do not vent refrigerant to the atmosphere.
• Replace all associated O-rings and seals with correct-sized, refrigerant-compatible O-rings lubricated with the manufacturer-recommended PAG oil.
• Inspect mating connections, receiver-drier/accumulator and compressor for contamination or damage; replace if contaminated to avoid premature failure of the new pipe.
• Perform a vacuum test on the evacuated system to check for leaks and moisture (recommended vacuum hold time per service manual).
• Recharge the system with the correct type and amount of refrigerant (R134a) and oil as specified by manufacturer data.
• After charging, run system and perform leak check (UV dye or electronic leak detector) and verify correct pressures and temperatures.

How The Part Is Replaced

Replacement typically involves recovering the refrigerant, disconnecting the pipe fittings (keeping track of the orientation and any brackets), removing the old line, fitting new O-rings and installing the new pipe. Secure all brackets and retighten fittings to the correct torque. Evacuate and recharge the system, then verify operation and inspect for leaks. Depending on vehicle layout, some dash or engine bay components may need to be moved for access—follow service manual procedures.

Common Failure Causes

• Corrosion from road salt or moisture attack on metal sections, especially in regions with harsh winters.
• Mechanical damage from impacts, chafing or contact with moving parts or heat sources.
• Age-related deterioration of joints and O-rings leading to refrigerant oil and gas leakage.
• Contamination inside the A/C system (debris, moisture) that accelerates corrosion or clogs components.

Why Replace This Part

A leaking or restricted air conditioning pipe reduces cooling performance, can allow moisture into the system, and may lead to compressor damage if left unaddressed. Replacing the defective pipe and renewing seals restores system reliability and prevents further component failures.

Advice For Professionals And DIY Mechanics

This part is suitable for professional workshops and experienced DIY mechanics familiar with A/C service procedures. Proper refrigerant handling equipment and knowledge of A/C system charging and leak testing are essential for safe and legal installation. If in doubt, consult the vehicle service manual or a trained technician.

This is a used part, carefully checked for functional reliability. Thanks to precise compatibility with the selected Citroën and Peugeot models, installation is quick and straightforward, saving you time and money. Beyond maintaining a comfortably cool interior, the pipe plays a crucial role in the vehicle’s overall energy efficiency.

Technical Information:

• Manufacturer: PSA Group
• Model: Compatible with Citroën C4, C5 II, C5 X7 and Peugeot 307, 407
• Product Codes: 9677930480, supplementary code 647779

Whether performing routine maintenance or comprehensive repairs on your air conditioning system, this AC pipe is a necessary component that helps ensure your vehicle continues to provide optimal performance and comfort. Focus on quality and reliability by choosing our original auto part designed for your Citroën or Peugeot.

Get this essential part of your cooling system today and enjoy the comfort and dependability that come with a properly functioning air conditioning system. Your vehicle will benefit, and more importantly, so will you during hot summer days.