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Air con pipes

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Special Order item
99970724740
Product Information
Product Information
O-Ring - 7.5 x 2 mm - which is suitable for various applications within the air conditioning system. Please refer to the product images for diagrams showing fitment for each vehicle model. 

Fits:
Vehicles with Air Conditioning System (PR 500 / 573)
Porsche 924 S 2.5L 1986-88

Porsche 928 4.5L 1978-82
Porsche 928 S 4.7L 1980-83
Porsche 928 S2 4.7L 1984-86
Porsche 928 S4 5.0L 1987-91
Porsche 928 GT 5.0L 1989-91
Porsche 928 GTS 5.4L 1992-95

Porsche 968 3.0L 1992-95 

Porsche 944 2.5L 1982-88
Porsche 944 2.7L 1989
Porsche 944 Turbo 2.5L 1986-91
Porsche 944 S 2.5L 1987-88
Porsche 944 S2 3.0L 1989-91

Porsche 959 1987-88 

Porsche 911 3.2L 1984-89 
Porsche 911 (930) Turbo 3.3L 1984-89

Porsche 964 1989-94
Porsche 964 Turbo 3.3L 1991-92
Porsche 964 Turbo 3.6L 1993-94

Porsche 993 1994-98
Porsche 993 Turbo 3.6L 1995-98 

Porsche 996 Carrera 1998-05
Porsche 996 Turbo 2001-05
Porsche 996 GT3 1999-05 

Porsche 997 Carrera 2005-12

Porsche 986 Boxster 1997-04

Porsche 987-1 Boxster 2005-08
Porsche 987-1 Cayman 2006-08

Porsche 987-2 Boxster 2009-12 

NOTE: These o-rings are sold individually. 

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About Air con pipes

Porsche Air Conditioning Pipes | Reliable Refrigerant Flow & Leak-Free Cooling Performance

Air conditioning pipes are vital to your Porsche’s climate control system, carrying refrigerant between the compressor, condenser, evaporator, and expansion valve. These precision-engineered lines ensure efficient cooling, optimal refrigerant pressure, and dependable A/C performance — keeping your cabin comfortable in all driving conditions.

At Design911, we supply high-quality air conditioning pipes and hose assemblies designed to meet or exceed original engineering standards. Manufactured from corrosion-resistant aluminium and reinforced rubber, each pipe ensures precise fitment, leak-free operation, and long-term reliability under high pressure and temperature variations.

Whether you’re repairing a refrigerant leak, restoring your A/C system, or replacing damaged lines, our Porsche air conditioning pipes deliver the durability and cooling efficiency you can rely on.

What Do Air Conditioning Pipes Do?

A/C pipes form the connecting network between key components in your Porsche’s air conditioning system. They enable efficient refrigerant circulation, pressure regulation, and heat exchange throughout the system.

Core Functions:

  • Transport refrigerant between the compressor, condenser, and evaporator.
  • Maintain correct refrigerant pressure for cooling efficiency.
  • Withstand high pressures and temperature fluctuations.
  • Prevent leaks and contamination within the A/C circuit.
  • Ensure consistent climate control and cabin comfort.

Without properly functioning A/C pipes, the system cannot circulate refrigerant effectively — leading to poor cooling, pressure loss, or compressor failure.

Why Do Air Conditioning Pipes Fail or Leak?

Over time, air conditioning pipes are exposed to vibration, pressure cycles, and environmental elements that can cause wear or damage.

Common Causes of Failure Include:

  • Corrosion or pitting from moisture and road salt.
  • Rubber hose deterioration due to heat and age.
  • Cracks or fractures caused by vibration or impact.
  • Damaged O-rings or seals leading to refrigerant leaks.
  • Blockages from debris or oil contamination.

When a pipe fails, symptoms may include warm air from the vents, visible oil or refrigerant residue, hissing sounds, or A/C warning lights — all indicating that replacement is needed.

Why Replace Your Porsche Air Conditioning Pipes?

Replacing damaged or leaking A/C pipes restores refrigerant pressure and prevents costly compressor or system damage. High-quality replacements ensure reliable operation and improved resistance to corrosion and vibration.

Key Benefits:

  • Restores correct refrigerant circulation and pressure.
  • Prevents leaks and loss of cooling efficiency.
  • Protects the compressor and other A/C components.
  • Corrosion- and heat-resistant construction for long service life.
  • Compatible with Porsche 911, Cayman, Boxster, Panamera, Macan, and more models.
  • Ideal for A/C system servicing, rebuilds, and full restorations.

It’s recommended to replace all associated O-rings and seals when fitting new A/C pipes to ensure a complete, leak-free installation.

Highlights

  • Precision-engineered Porsche A/C pipes and refrigerant lines.
  • High-strength aluminium and reinforced rubber construction.
  • Designed for accurate fitment and long-lasting reliability.
  • Prevents refrigerant leaks and pressure loss.
  • Direct-fit replacements for all Porsche A/C systems.
  • Essential for maintenance, servicing, or full climate system rebuilds.

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