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Porsche // 914 (1970-1976) // Any
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- Porsche 9YA Cayenne V6 3.0L Petrol (340Hp) 2018-23
- Porsche 9YA Cayenne Coupe V6 3.0L Petrol (340Hp) 2019-23
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
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 924S 2.5L 1986-87
- Porsche 924S 2.5L 1988
- Porsche 928S4 5.0L 1987-92
- Porsche 928GT 5.0L 1989-91
- Porsche 928GTS 5.4L 1992-95
- Porsche 914 (1970-1976)
Pipe Clamp B20x18 – Multi-Position Clamp
Sold each
High-quality
pipe clamp B20x18 designed for a wide range of securing applications across Porsche 911, 924S, 928, and
914 models.
This versatile clamp is used in multiple locations including
air conditioning pipes, wiring looms, power steering lines, clutch cables,
and heating system components, making it an essential part for maintaining
correct routing and system integrity throughout the vehicle.
Fits:
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 924S 2.5L 1986-87
- Porsche 924S 2.5L 1988
- Porsche 928S4 5.0L 1987-92
- Porsche 928GT 5.0L 1989-91
- Porsche 928GTS 5.4L 1992-95
- Porsche 914 (1970-1976)
Manufactured to OEM specifications, this clamp ensures secure fitment, durability, and resistance to corrosion. Supplied individually, it allows flexible replacement for maintenance, repair, or restoration projects.
Key Features
• Pipe clamp size B20x18
• Suitable for Porsche 911, 924S, 928, and 914
• Part number 99951107602
• Multi-use: AC pipes, wiring looms, steering, clutch, heating
• Ensures secure mounting and routing
• Durable and corrosion-resistant construction
• OEM-style fit and performance
• Sold individually
Function and Purpose
This clamp is designed to secure various components across the vehicle.
It helps to:
• Hold pipes, hoses, and cables firmly in place
• Maintain correct routing and alignment
• Prevent vibration-related wear and damage
• Protect sensitive components such as wiring looms
• Support long-term system reliability
Why Replace Pipe Clamps
Clamps can degrade over time due to heat and environmental exposure.
Common issues include:
• Loss of clamping strength
• Corrosion or fatigue
• Movement of pipes or cables
• Increased risk of wear or failure
Replacing worn clamps ensures proper securing and protects system components.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99951107602
The product you are viewing cross references to these numbers