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Air conditioning refrigerant pressure line. Porsche 9YA Cayenne 3.0L 2018-24 - 9Y0816721C
9Y0816721C/1
Vehicle Group
- Porsche 9YA Cayenne V6 3.0L Petrol (340Hp) 2018-23
- Porsche 9YA Cayenne Coupe V6 3.0L Petrol (340Hp) 2019-23
Information
Air conditioning refrigerant pressure line.
This OE Match air conditioning refrigerant pressure line is a replacement A/C pipe for Porsche 9YA Cayenne 3.0L models. It is designed to match the original-style fitment and function, helping maintain correct refrigerant flow within the vehicle’s air conditioning system.
Fits:
Porsche 9YA Cayenne 3.0L petrol 2018 - 2024 (PR:DU6)
* Refrigerant R1234yf (option code: KK3)
Diagram ref no 7
The refrigerant pressure line carries air conditioning refrigerant between A/C system components under pressure. It helps the system circulate refrigerant correctly so the air conditioning can cool the cabin efficiently and operate as intended.
Functions
• Carries refrigerant through the air conditioning system
• Helps maintain correct A/C system pressure and flow
• Supports efficient cabin cooling performance
• Connects designated air conditioning system components
• Helps prevent refrigerant leaks when correctly installed
• Replaces damaged, leaking, corroded, or worn original pressure lines
• OE Match replacement for A/C system repair and service.
Why Replace This Part?
Air conditioning refrigerant pressure lines can become damaged by corrosion, vibration, impact, age, or seal failure. A leaking or damaged pressure line can cause refrigerant loss, poor cooling, A/C system pressure faults, or complete air conditioning failure. Replacing the line helps restore correct refrigerant circulation and supports reliable climate control operation.
When to Replace This Part
• The A/C pressure line is leaking refrigerant
• The pipe is corroded, cracked, bent, or physically damaged
• The air conditioning system is not cooling correctly
• Refrigerant pressure faults are present
• Oil or dye residue is visible around the A/C line or joints
• The line has been damaged during engine bay or front-end repairs
• The A/C system is being serviced, repaired, or recommissioned.
Where it fits on the car
This refrigerant pressure line fits within the air conditioning pipework system on Porsche 9YA Cayenne 3.0L models. It connects between the specified A/C system components according to the vehicle’s factory diagram and refrigerant circuit layout.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
9Y0816721C
The product you are viewing cross references to these numbers
This OE Match air conditioning refrigerant pressure line is a replacement A/C pipe for Porsche 9YA Cayenne 3.0L models. It is designed to match the original-style fitment and function, helping maintain correct refrigerant flow within the vehicle’s air conditioning system.
Fits:
Porsche 9YA Cayenne 3.0L petrol 2018 - 2024 (PR:DU6)
* Refrigerant R1234yf (option code: KK3)
Diagram ref no 7
The refrigerant pressure line carries air conditioning refrigerant between A/C system components under pressure. It helps the system circulate refrigerant correctly so the air conditioning can cool the cabin efficiently and operate as intended.
Functions
• Carries refrigerant through the air conditioning system
• Helps maintain correct A/C system pressure and flow
• Supports efficient cabin cooling performance
• Connects designated air conditioning system components
• Helps prevent refrigerant leaks when correctly installed
• Replaces damaged, leaking, corroded, or worn original pressure lines
• OE Match replacement for A/C system repair and service.
Why Replace This Part?
Air conditioning refrigerant pressure lines can become damaged by corrosion, vibration, impact, age, or seal failure. A leaking or damaged pressure line can cause refrigerant loss, poor cooling, A/C system pressure faults, or complete air conditioning failure. Replacing the line helps restore correct refrigerant circulation and supports reliable climate control operation.
When to Replace This Part
• The A/C pressure line is leaking refrigerant
• The pipe is corroded, cracked, bent, or physically damaged
• The air conditioning system is not cooling correctly
• Refrigerant pressure faults are present
• Oil or dye residue is visible around the A/C line or joints
• The line has been damaged during engine bay or front-end repairs
• The A/C system is being serviced, repaired, or recommissioned.
Where it fits on the car
This refrigerant pressure line fits within the air conditioning pipework system on Porsche 9YA Cayenne 3.0L models. It connects between the specified A/C system components according to the vehicle’s factory diagram and refrigerant circuit layout.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
9Y0816721C
9Y0816721C
The product you are viewing cross references to these numbers
Price: £116.00
Orderable
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Vehicle Group
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- Porsche 997 MKII GT2 RS 2011-13
Information
Air conditioning line O-ring. 17 x 2.0
This O-ring provides a secure, leak-free seal at A/C line connections, helping maintain proper refrigerant pressure and system efficiency. Designed for direct replacement, it installs easily during A/C service or repair and helps restore factory-level air conditioning operation without modification.
Sold each.
Fits:
Porsche 964 1989 - 1994
Porsche 993 1995 - 1998
Porsche 996 1998 - 2005
Porsche 997.1 2005 - 2008
Porsche 997.2 2009 - 2012
Porsche 986 Boxster 1997 - 2005
Diagram ref no 19
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99970753441
The product you are viewing cross references to these numbers
This O-ring provides a secure, leak-free seal at A/C line connections, helping maintain proper refrigerant pressure and system efficiency. Designed for direct replacement, it installs easily during A/C service or repair and helps restore factory-level air conditioning operation without modification.
Sold each.
Fits:
Porsche 964 1989 - 1994
Porsche 993 1995 - 1998
Porsche 996 1998 - 2005
Porsche 997.1 2005 - 2008
Porsche 997.2 2009 - 2012
Porsche 986 Boxster 1997 - 2005
Diagram ref no 19
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99970753441
99970753441
99970725240
The product you are viewing cross references to these numbers
Price: £3.80
In stock
Vehicle Group
- Porsche 996 C2 3.4L 1997-08/01
- Porsche 996 C4 3.4L 1997-08/01
- Porsche 996 C2 3.6L 09/01-2005
- Porsche 996 C4 3.6L 09/01-2005
- Porsche 996 C4S 3.6L 09/01-2005
Information
Air Conditioning Pressure Line.
Symptoms Of Wear Or Failure:
Why Replacement Matters:
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99657309706
The product you are viewing cross references to these numbers
This Air Conditioning Pressure Line is a OE MATCH Porsche 996 component designed to carry high-pressure refrigerant within the vehicle’s air-conditioning system. Connecting the A/C compressor to other key components, this line ensures efficient circulation of refrigerant for optimal cooling performance.
Fits:
- Porsche 996 C2 3.4L 1997-08/01
- Porsche 996 C4 3.4L 1997-08/01
- Porsche 996 C2 3.6L 09/01-2005
- Porsche 996 C4 3.6L 09/01-2005
- Porsche 996 C4S 3.6L 09/01-2005
Diagram Ref No 8
What This Product Does:
- Transports high-pressure refrigerant through the A/C system
- Maintains correct system pressure for efficient cooling
- Supports consistent air-conditioning performance
- Prevents refrigerant loss when functioning correctly
- Ensures proper operation of the A/C compressor and system components
Symptoms Of Wear Or Failure:
- Weak or no cooling from the air-conditioning system
- Visible refrigerant leaks (often oily residue around the pipe)
- Hissing sounds from escaping gas
- A/C system unable to hold pressure
- Compressor cycling irregularly or failing to engage
Why Replacement Matters:
- Restores proper cooling performance
- Prevents refrigerant loss and system inefficiency
- Protects the A/C compressor and related components from damage
- Ensures correct pressure levels within the system
- Maintains cabin comfort, especially in warm conditions
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99657309706
99657309706
99657309702
99657309704
The product you are viewing cross references to these numbers
Price: £321.52
Orderable
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Vehicle Group
- Porsche 996 C4S 3.6L 09/01-2005
- Porsche 996 TURBO 2000-05
- Porsche 996 GT2 2001-05
Information
Refrigerant Line, Condenser To Drier.
Diagram Ref No 1
What This Product Does:
Symptoms Of Wear Or Failure:
Why Replacement Matters:
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99657310506
The product you are viewing cross references to these numbers
This Refrigerant Line, Condenser to Drier is a OE MATCH Porsche 996 component designed to transport refrigerant between the condenser and receiver drier within the vehicle’s air-conditioning system. This line plays a critical role in maintaining correct pressure and ensuring the refrigerant is properly filtered and dehumidified before continuing through the system.
Fits:
- Porsche 996 C4S 3.6L 2002-2005
- Porsche 996 TURBO 2000-05
- Porsche 996 GT2 2001-05
Diagram Ref No 1
What This Product Does:
- Transfers refrigerant from the condenser to the receiver drier
- Maintains correct system pressure for efficient cooling
- Supports moisture removal via the drier unit
- Ensures consistent A/C system performance
- Prevents refrigerant leaks when functioning properly
Symptoms Of Wear Or Failure:
- Weak or no air-conditioning performance
- Visible refrigerant leaks (often oily residue on the pipe or connections)
- Hissing sounds from escaping gas
- Moisture contamination within the A/C system
- Irregular compressor operation or failure to engage
Why Replacement Matters:
- Restores proper refrigerant flow and cooling performance
- Prevents moisture contamination that can damage internal components
- Protects the compressor and condenser from excessive strain
- Ensures correct system pressure and operation
- Maintains cabin comfort, especially in warm conditions
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99657310506
99657310506
99657310504
The product you are viewing cross references to these numbers
Price: £310.18
Orderable