High-quality air conditioning pipe designed as a direct replacement for original equipment on Citroën C4 and Peugeot 307 models equipped with 1.4 16V, 1.6 16V and 2.0 16V engines. This A/C line restores correct refrigerant flow between system components, helping to return full cooling performance and prevent refrigerant loss. Often referenced by OEM numbers 9650629480, 9681723480, 6460ZP or 6460LV, this part is aimed at professional mechanics and experienced DIY enthusiasts who need a reliable, vehicle-specific solution.

Technical Information

• Manufacturer: Stellantis
• Model: Citroën C4; Peugeot 307
• Product Codes: 9650629480, 9681723480, 6460ZP, 6460LV
• Other Numbers: NFP

Features & Benefits

• Direct fit to original mounting points for straightforward replacement.
• Constructed to withstand refrigerant pressure and engine-bay conditions.
• Compatible with common R134a/R1234yf service procedures (follow vehicle specifications).
• Restores correct routing of refrigerant between evaporator, condenser and compressor to recover cooling efficiency and prevent leaks.

Recommended Installation

Replacement of the air conditioning pipe requires standard A/C service equipment and knowledge of refrigerant handling. Recommended steps:

• Recover refrigerant from the system using certified recovery equipment.
• Remove any clamps, brackets or insulation securing the old pipe; note routing and connections.
• Replace all exposed O-rings and lubricate new O-rings with appropriate PAG oil compatible with the system.
• Install the new pipe, secure brackets and clamps to original torque where specified, then vacuum the system to check for leaks.
• Recharge the system to the manufacturer’s specified refrigerant amount and perform an operational check.

If you do not have access to proper refrigerant recovery and charging equipment, have the part installed by a professional A/C service to ensure safety and compliance with regulations.

Why This Part Most Often Fails

• Corrosion and galvanic wear from road salt and moisture can lead to pinhole leaks.
• Vibration and engine movement can cause fatigue at bends or at connection points.
• Damaged O-rings or improperly seated fittings cause refrigerant loss at joints.
• Physical damage from impact or chafing against other components may puncture or crack the pipe.
• Age and material degradation over many years in harsh under-hood conditions.

Notes For Mechanics And DIYers

When replacing an A/C pipe, always inspect adjacent components (compressor, condenser, evaporator, dryer/accumulator) and replace O-rings. Proper evacuation and recharge are essential to avoid compressor damage and to ensure the system reaches designed cooling performance. Keep a record of refrigerant weights and oil quantities used during service to maintain system reliability.

This replacement A/C pipe is intended for mechanics and competent DIY enthusiasts who need a direct-fit line for the climate system on selected Citroën and Peugeot petrol engines. It serves as a serviceable connection in the refrigerant circuit, restoring correct routing and sealing where the original pipe is leaking, corroded or mechanically damaged. Keywords for search visibility: AC pipe, air conditioning hose, AC line, Citroën C4 AC pipe, Peugeot 307 AC hose, 9681723480, 6460LV, 6460ZP.

Function And Application

The pipe transports refrigerant between components of the air conditioning system (e.g., compressor, condenser, evaporator or receiver/drier depending on exact routing). Proper fit and sealing are critical to maintain system pressure, avoid refrigerant loss and ensure efficient cooling. This part is typically used on Citroën C4 and Peugeot 307 models equipped with 1.4 16V, 1.6 16V and 2.0 16V engines.

Technical Information

• Manufacturer: Stellantis / Citroën / Peugeot
• Model: Citroën C4; Peugeot 307 (Engines: 1.4 16V, 1.6 16V, 2.0 16V)
• Product Codes: 9681723480; 6460LV; 6460ZP
• Other Numbers: NFP

How To Replace

Replacement should be performed by a trained technician or an experienced DIYer with the correct tools. General steps:

• Recover refrigerant from the system using certified recovery equipment and in accordance with local regulations.
• Depressurize and safely remove any clamps or brackets securing the old pipe. Note routing and fastener locations for reassembly.
• Disconnect fittings—replace all associated O-rings/seals with correct size and material. Lightly lubricate new O-rings with the appropriate PAG oil to ensure a correct seal.
• Fit the new pipe, secure mounting points and tighten fittings to the manufacturer’s recommendations where available.
• Evacuate the system with a vacuum pump to remove air and moisture, then perform a leak test (electronic detector, UV dye or pressure/nitrogen test) before charging.
• Recharge the system with the specified refrigerant (system-dependent, commonly R134a on cars of this generation) and correct amount of lubricant according to vehicle data.
• Run the air conditioning to operating temperature and re-check for leaks and correct pressures.

Installation Recommendations

• Always use new O-rings of the correct specification and replace any rubber seals disturbed during the job.
• Avoid kinking the pipe during installation; ensure original routing and secure clips are used to prevent chafing against engine parts.
• Use proper safety equipment (gloves, eye protection) and comply with refrigerant handling regulations. Refrigerant recovery and recharge are best performed with certified equipment.
• When possible, inspect related components (compressor, condenser, receiver/drier, expansion valve) and replace the receiver/drier if the system has been open to the atmosphere for an extended period.

Most Common Reasons This Part Fails

• Corrosion or material degradation due to road salt and environmental exposure leading to slow leaks.
• Mechanical damage from impact or contact with moving/adjacent components causing punctures or cracks.
• O-ring failure at connections due to age, improper lubrication, or incorrect installation.
• Vibration and fatigue where clamps or mounts are missing or weakened, eventually causing chafing and leakage.
• Contamination or internal blockages are less common but can occur after compressor failure or system contamination.

Notes For Buyers

Searchable part numbers are included above and are frequently used by workshops when sourcing this specific A/C pipe. If the system shows low refrigerant charge, poor cooling or visible oil traces at pipe joints, this pipe and its seals are among the first items to inspect. Proper installation and leak testing are essential to ensure long-term system reliability.