O-ring for Air con condenser 11.00 x 2.50 NX  ❭  99970755741

Radiator air conditioning (air con) condenser desiccator, also know as the receiver/dryer.
We recommend changing the receiver/dryer when changing the AC radiator.

(also purchase 2 o-rings Part No 99970726240)

Fits:
Porsche 968 1992 - 1995
Porsche 964 1993 >>
Porsche 993 C2, C4, Turbo
Porsche 996 C2, C4, GT2, GT3, Turbo
Porsche 997 Turbo
Porsche 997 C2, C2S, C4, C4S,
Porsche 991 Turbo
Porsche 991 C2, C2S, C4, C4S,
Porsche Boxster 986, 987, 981, 718 (982) 1997>>
Porsche Cayman 987C, 981C, 718C (982C) 2005>>

Diagram Ref No 3.

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

94457314301

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O-Ring for Radiator Air Conditioning (Air Con) and pipe,  23.8 x 2.4 mm
The Porsche Genuine OE O-Ring Seal (Part No. 99970743941) is a precision-engineered sealing ring used within the air conditioning (A/C) system, specifically at the radiator (condenser) and pipe connections. It is designed to provide a tight, leak-free seal between A/C components.
Sold individually

Fits:
Porsche 986 Boxster 1997 - 2004
Porsche 987.1 Boxster 2005 - 2008
Porsche 987.2 Boxster 2009 - 2012
Porsche 981 Boxster 2012 - 2016
Porsche 982 Boxster 2017>>
Porsche 987C.1 Cayman 2006 - 2008
Porsche 981C Cayman 2014 - 2016
Porsche 982C Cayman 2017>>
Porsche 996 1998 - 2005
Porsche 997.1 2005 - 2008
Porsche 997.2 2009 - 2012
Porsche 991.1 2012 - 2016
Porsche 991.2 2017 - 2019

Diagram ref no 17

This O-ring seals the junction between the air conditioning condenser (radiator) and associated refrigerant pipes, preventing leaks of refrigerant gas.

By maintaining a sealed system, it ensures proper cooling performance, system pressure, and efficiency of the vehicle’s climate control system.

Functions & Technical Role
•  Refrigerant sealing: Prevents gas leaks at A/C connections
•  Pressure retention: Maintains correct system pressure
•  Thermal resistance: Designed to withstand heat and cooling cycles
•  System protection: Prevents contamination and moisture ingress
•  OEM precision: Exact dimensions (approx. 23.8 x 2.4 mm) for proper fitment

Fitment / Position on car
•  Fitting position: Air conditioning system
•  Location: Between A/C condenser (radiator) and refrigerant pipes/hoses
•  System: Climate control / air conditioning refrigerant circuit

O-rings in A/C systems are exposed to pressure, refrigerant chemicals, and temperature cycles, which can cause them to harden or fail over time. A worn or damaged seal can lead to:
•  Loss of refrigerant gas
•  Reduced or no air conditioning performance
•  Increased system pressure issues
•  Costly A/C system repairs

Replacing with a genuine Porsche OE O-ring ensures proper sealing, restores cooling efficiency, and protects the entire A/C system.

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

99970743941

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The air conditioning condenser, changes the phase of the refrigerant and expels heat removed from the car. Radiator Aircon Condenser.



Fits Left or Right Side. Price shown is for each.

Fits:
Porsche 991 (911) Turbo 2013>>
Porsche 991 GT3 2014-17
Porsche 718 Boxster Spyder 2015

Click 'Zoom in' for large parts diagram.
Diagram ref no 4.

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

99157311104

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