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Air Con Pressure Pipe. Porsche 997.1 2005-08 - 99757309606
99757309606
Vehicle Group
- Porsche 997 MK1 Carrera 2 3.6L 2005-08
- Porsche 997 MK1 Carrera 2S 3.8L 2005-08
- Porsche 997 MK1 Carrera 4 3.6L 2005-08
- Porsche 997 MK1 Carrera 4S 3.8L 2005-08
Information
Air Con Pressure Pipe.
Restore the high-pressure circuit of your Porsche’s A/C system with this genuine OEM pressure line. Designed for Porsche 911 997, this high-pressure refrigerant line connects the compressor outlet to the condenser/receiver unit and is built to Porsche’s specification for durability, pressure‐resistance and fit-and-finish.
Fits:
Diagram Ref No 25
What This Product Does:
Symptoms & Signs You May Need Replacement:
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99757309606
The product you are viewing cross references to these numbers
Restore the high-pressure circuit of your Porsche’s A/C system with this genuine OEM pressure line. Designed for Porsche 911 997, this high-pressure refrigerant line connects the compressor outlet to the condenser/receiver unit and is built to Porsche’s specification for durability, pressure‐resistance and fit-and-finish.
Fits:
- Porsche 997 MK1 Carrera 2 3.6L 2005-08
- Porsche 997 MK1 Carrera 2S 3.8L 2005-08
- Porsche 997 MK1 Carrera 4 3.6L 2005-08
- Porsche 997 MK1 Carrera 4S 3.8L 2005-08
Diagram Ref No 25
What This Product Does:
- In an automotive A/C system, the high-pressure line carries refrigerant from the compressor outlet (where it's compressed) to the condenser (and sometimes to receiver/drier) under high pressure and high temperature.
- This pipe must be constructed to withstand the pressure (often dozens of bar) and high temperature, plus resist fatigue, corrosion, vibration and the harsh engine-bay environment.
- Proper operation of this line ensures the A/C system can condense the refrigerant, maintain correct pressure differential, prevent leaks and ensure efficient cooling of the cabin.
- If the pipe is damaged, leaking or improperly fitted, the system may lose refrigerant, pressure may drop, cooling performance will suffer, and other components (compressor, drier) may be stressed or damaged.
Symptoms & Signs You May Need Replacement:
- Loss of A/C cooling performance — the cabin takes much longer to cool, or only warm air emerges despite compressor running. A leak or pressure drop in the high-pressure line is a possible cause.
- Visible refrigerant oil residue around the pipe, fittings or connections — this may indicate a refrigerant leak from the high-pressure line.
- Hissing leak or refrigerant gas escape near the pipe or condenser connections when system is running.
- Corrosion, damage, bent sections or worn insulation on the pipe itself. Because the high-pressure line often sits near hot or vibrating areas, damage can develop over time.
- Frequent refrigerant recharge, or a system that loses charge unexpectedly — the pipe may no longer hold pressure.
- System efficiency & reliability: The high-pressure line is vital for the A/C system to function correctly — if compromised, cooling is degraded and the system’s lifespan is reduced.
- Prevent collateral damage: A leak or failure in a high-pressure line can allow air/moisture into the system, causing corrosion, absorber/drier failure, compressor damage or contamination.
- Safety & performance: A failing line can allow refrigerant escape (which can be harmful), or cause the system to operate under stress — replacing prevents such risks.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99757309606
99757309606
99757309601
The product you are viewing cross references to these numbers
Price: £169.24
Orderable
Related products
Vehicle Group
- Porsche 9YA Cayenne V6 3.0L Petrol (340Hp) 2018-23
- Porsche 9YA Cayenne Coupe V6 3.0L Petrol (340Hp) 2019-23
- Porsche 9YA Cayenne S V6 2.9L Petrol (440Hp) 2018-23
- Porsche 9YA Cayenne Coupe S V6 2.9L Petrol (440Hp) 2019-23
Information
Air conditioning refrigerant suction line.
Fits:
Porsche 9YA Cayenne V6 3.0ltr - 2018 to 2023
Porsche 9YA Cayenne S V6 2.9ltr - 2018 to 2023
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
9Y0820743C
The product you are viewing cross references to these numbers
Fits:
Porsche 9YA Cayenne V6 3.0ltr - 2018 to 2023
Porsche 9YA Cayenne S V6 2.9ltr - 2018 to 2023
Click 'Zoom in' for large parts diagram.
Diagram ref no 5
Related reference numbers
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9Y0820743C
9Y0820743C
The product you are viewing cross references to these numbers
Price: £151.18
Orderable
Vehicle Group
- Porsche 9YA Cayenne V6 3.0L Petrol (340Hp) 2018-23
- Porsche 9YA Cayenne Coupe V6 3.0L Petrol (340Hp) 2019-23
- Porsche 9YA Cayenne S V6 2.9L Petrol (440Hp) 2018-23
- Porsche 9YA Cayenne Coupe S V6 2.9L Petrol (440Hp) 2019-23
Information
Air conditioning refrigerant suction line.
Fits:
Porsche 9YA Cayenne V6 3.0ltr - 2018 to 2023
Porsche 9YA Cayenne S V6 2.9ltr - 2018 to 2023
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
9Y0820743C
The product you are viewing cross references to these numbers
Fits:
Porsche 9YA Cayenne V6 3.0ltr - 2018 to 2023
Porsche 9YA Cayenne S V6 2.9ltr - 2018 to 2023
Click 'Zoom in' for large parts diagram.
Diagram ref no 5
Related reference numbers
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9Y0820743C
9Y0820743C
The product you are viewing cross references to these numbers
Price: £92.50
In stock
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.
The Genuine Porsche 9Y0816721C air conditioning refrigerant pressure line is an OE A/C refrigerant line for selected Porsche 9YA Cayenne 3.0L non-hybrid models. It helps route refrigerant through the pressure side of the air conditioning system, supporting correct system pressure and cooling performance. Ideal for replacing a leaking, damaged or corroded A/C refrigerant line during air conditioning repair work.
Fits:
Porsche 9YA Cayenne 3.0L petrol 2018 - 2024 (PR:DU6)
* Refrigerant R1234yf (option code: KK3)
Diagram ref no 7
Part number 9Y0816721C is a Genuine Porsche air conditioning refrigerant pressure line, also described as an A/C refrigerant discharge hose, refrigerant line or return pipe. It is designed for Porsche Cayenne 9YA 3.0L petrol models without hybrid, and is listed for vehicles using R1234yf refrigerant.
Functions
• Transfers A/C refrigerant through the air conditioning system
• Forms part of the pressure side of the refrigerant circuit
• Helps maintain correct refrigerant flow between A/C components
• Supports efficient cabin cooling performance
• Helps maintain correct A/C system pressure when properly sealed
• Provides a factory-correct pipe/hose shape and connection fitment
• Replaces a leaking, damaged or corroded original refrigerant line
• Maintains OE Porsche air conditioning system reliability and fit.
Why Replace This Part?
A/C refrigerant lines can become damaged, corroded, cracked or leak at connection points over time. If the pressure line leaks, the air conditioning system may lose refrigerant, resulting in weak cooling, warm air from the vents or complete A/C failure. Replacing the line with a Genuine Porsche OE refrigerant pressure line helps restore the correct refrigerant circuit, pressure sealing and cooling performance. The system should be checked, evacuated and recharged by a qualified A/C technician after installation.
When to Replace This Part
• If the A/C system is leaking refrigerant from the line or hose connection
• If the air conditioning blows warm or does not cool correctly
• If the pipe is cracked, damaged, corroded or kinked
• During A/C compressor, condenser, evaporator or hose repairs
• If the system fails a pressure or leak test
• After accident damage or front-end repair affecting A/C pipework
• When replacing old or damaged refrigerant pipework with OE Porsche parts.
Where It Fits on the Car
This part fits in the air conditioning refrigerant circuit of the Porsche Cayenne. It is used as part of the A/C pressure/discharge line system, routing refrigerant between air conditioning components in the engine bay/front vehicle area. Exact routing and connection points can vary by engine and model specification, so the part should be matched to the vehicle VIN before fitting.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
9Y0816721C
The product you are viewing cross references to these numbers
The Genuine Porsche 9Y0816721C air conditioning refrigerant pressure line is an OE A/C refrigerant line for selected Porsche 9YA Cayenne 3.0L non-hybrid models. It helps route refrigerant through the pressure side of the air conditioning system, supporting correct system pressure and cooling performance. Ideal for replacing a leaking, damaged or corroded A/C refrigerant line during air conditioning repair work.
Fits:
Porsche 9YA Cayenne 3.0L petrol 2018 - 2024 (PR:DU6)
* Refrigerant R1234yf (option code: KK3)
Diagram ref no 7
Part number 9Y0816721C is a Genuine Porsche air conditioning refrigerant pressure line, also described as an A/C refrigerant discharge hose, refrigerant line or return pipe. It is designed for Porsche Cayenne 9YA 3.0L petrol models without hybrid, and is listed for vehicles using R1234yf refrigerant.
Functions
• Transfers A/C refrigerant through the air conditioning system
• Forms part of the pressure side of the refrigerant circuit
• Helps maintain correct refrigerant flow between A/C components
• Supports efficient cabin cooling performance
• Helps maintain correct A/C system pressure when properly sealed
• Provides a factory-correct pipe/hose shape and connection fitment
• Replaces a leaking, damaged or corroded original refrigerant line
• Maintains OE Porsche air conditioning system reliability and fit.
Why Replace This Part?
A/C refrigerant lines can become damaged, corroded, cracked or leak at connection points over time. If the pressure line leaks, the air conditioning system may lose refrigerant, resulting in weak cooling, warm air from the vents or complete A/C failure. Replacing the line with a Genuine Porsche OE refrigerant pressure line helps restore the correct refrigerant circuit, pressure sealing and cooling performance. The system should be checked, evacuated and recharged by a qualified A/C technician after installation.
When to Replace This Part
• If the A/C system is leaking refrigerant from the line or hose connection
• If the air conditioning blows warm or does not cool correctly
• If the pipe is cracked, damaged, corroded or kinked
• During A/C compressor, condenser, evaporator or hose repairs
• If the system fails a pressure or leak test
• After accident damage or front-end repair affecting A/C pipework
• When replacing old or damaged refrigerant pipework with OE Porsche parts.
Where It Fits on the Car
This part fits in the air conditioning refrigerant circuit of the Porsche Cayenne. It is used as part of the A/C pressure/discharge line system, routing refrigerant between air conditioning components in the engine bay/front vehicle area. Exact routing and connection points can vary by engine and model specification, so the part should be matched to the vehicle VIN before fitting.
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: £148.44
Orderable