Expansion Tank Hoses

Breather Line, Radiator To Bleeder Valve.
Maintain proper cooling system ventilation and temperature control with the Breather Line, Radiator to Bleeder Valve. This OEM-quality breather line is designed to connect the radiator to the bleeder valve, allowing trapped air and vapor to escape from the cooling system for improved circulation and efficiency.

Fits:

• Porsche 958 Cayenne V6 3.6L Petrol (300Hp) 2010-17
• Porsche 958 Cayenne S V8 4.8L Petrol (400Hp) 2010-17
• Porsche 958 Cayenne GTS V8 4.8L Petrol (400Hp) 2010-17
• Porsche 958 Cayenne Turbo V8 4.8L Petrol (500Hp) 2010-17
• Porsche 958 Cayenne Turbo S V8 4.8L Petrol (550Hp) 2010-17

  
Diagram Ref No 8

What This Product Does:

• Vents air from the radiator circuit
• Helps prevent air pockets that can restrict coolant flow
• Supports proper cooling system bleeding
• Maintains stable coolant pressure
• Helps regulate engine operating temperature

Symptoms Of Wear Or Failure:

• Coolant leaks near the radiator or bleeder valve connection
  
• Low coolant warning light
• Frequent coolant top-offs
• Sweet coolant smell from the engine bay
  
• Coolant residue or staining around fittings or clamps
  
• Cracked, brittle, or leaking line material
• Air trapped in the cooling system, causing gurgling sounds
  
• Fluctuating engine temperature or unstable gauge readings
  
• Overheating, especially after coolant service or refilling
  
• Steam from under the hood in severe cases
  
  

Why Replacement Matters:

• Replacing a worn breather line is important because it ensures trapped air can properly escape from the cooling system. Over time, heat and coolant exposure can cause the line to crack, harden, or leak.
• If the breather line fails, air pockets may form in the radiator circuit, reducing coolant circulation and cooling efficiency. This can lead to unstable engine temperatures, overheating, and potential engine damage.
• Installing a new breather line helps maintain proper system bleeding, prevent leaks, and protect the engine by supporting reliable cooling system performance.

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Related, superseded, cross reference or alternative numbers for comparison.

95810631050

The product you are viewing cross references to these numbers

Breather Line, Radiator To Bleeder Valve.
Maintain proper cooling system ventilation and temperature control with the Breather Line, Radiator to Bleeder Valve. This OE MATCH breather line is designed to connect the radiator to the bleeder valve, allowing trapped air and vapor to escape from the cooling system for improved circulation and efficiency.

Fits:

• Porsche 958 Cayenne V6 3.6L Petrol (300Hp) 2010-17
• Porsche 958 Cayenne S V8 4.8L Petrol (400Hp) 2010-17
• Porsche 958 Cayenne GTS V8 4.8L Petrol (400Hp) 2010-17
• Porsche 958 Cayenne Turbo V8 4.8L Petrol (500Hp) 2010-17
• Porsche 958 Cayenne Turbo S V8 4.8L Petrol (550Hp) 2010-17

  
Diagram Ref No 8

What This Product Does:

• Vents air from the radiator circuit
• Helps prevent air pockets that can restrict coolant flow
• Supports proper cooling system bleeding
• Maintains stable coolant pressure
• Helps regulate engine operating temperature

Symptoms Of Wear Or Failure:

• Coolant leaks near the radiator or bleeder valve connection
  
• Low coolant warning light
• Frequent coolant top-offs
• Sweet coolant smell from the engine bay
  
• Coolant residue or staining around fittings or clamps
  
• Cracked, brittle, or leaking line material
• Air trapped in the cooling system, causing gurgling sounds
  
• Fluctuating engine temperature or unstable gauge readings
  
• Overheating, especially after coolant service or refilling
  
• Steam from under the hood in severe cases
  
  

Why Replacement Matters:

• Replacing a worn breather line is important because it ensures trapped air can properly escape from the cooling system. Over time, heat and coolant exposure can cause the line to crack, harden, or leak.
• If the breather line fails, air pockets may form in the radiator circuit, reducing coolant circulation and cooling efficiency. This can lead to unstable engine temperatures, overheating, and potential engine damage.
• Installing a new breather line helps maintain proper system bleeding, prevent leaks, and protect the engine by supporting reliable cooling system performance.

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

95810631050

The product you are viewing cross references to these numbers

Breather Line.

The Breather Line is a genuine Porsche ventilation hose designed to support correct pressure regulation and airflow within the vehicle’s engine or cooling system ventilation circuit (depending on application). This line helps route trapped air or vapours through the correct system pathways, ensuring stable operation and preventing pressure build-up.

Fits:

• Porsche 958 Cayenne V6 3.6L Petrol (300Hp) 2010-14
• Porsche 958 Cayenne V6 3.0L Diesel (245Hp) 2010-14
• Porsche 958 Cayenne S V6 3.0L Hybrid (380Hp) 2010-14
• Porsche 958 Cayenne S V8 4.2L Diesel (382Hp) 2010-14

  
Diagram Ref No 6

What This Product Does:

• Allowing trapped air or vapours to vent safely
• Maintaining stable system pressure
• Supporting efficient coolant or crankcase circulation (application dependent)
• Helping prevent pressure-related leaks
• Ensuring the system operates correctly without airlocks or restriction

Symptoms Of Wear Or Failure:

• Coolant or oil vapour leaks (depending on system type)
• Cracked, split, or brittle hose material
• Poor system bleeding or air trapped in the circuit
• Coolant loss or pressure issues
• Engine bay smells (coolant or oil vapour)
• Warning lights or fault codes in some cases
• Overheating or unstable temperature readings (if coolant-related)

Why Replacement Matters:

• Maintain correct ventilation and pressure control
• Prevent leaks and coolant/oil loss
• Support stable engine operating temperatures
• Avoid overheating and expensive repairs
• Restore proper system efficiency and reliability

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

95810631010

The product you are viewing cross references to these numbers

Breather Line.

The Breather Line is a OE MATCH ventilation hose designed to support correct pressure regulation and airflow within the vehicle’s engine or cooling system ventilation circuit (depending on application). This line helps route trapped air or vapours through the correct system pathways, ensuring stable operation and preventing pressure build-up.

Fits:

• Porsche 958 Cayenne V6 3.6L Petrol (300Hp) 2010-14
• Porsche 958 Cayenne V6 3.0L Diesel (245Hp) 2010-14
• Porsche 958 Cayenne S V6 3.0L Hybrid (380Hp) 2010-14
• Porsche 958 Cayenne S V8 4.2L Diesel (382Hp) 2010-14

  
Diagram Ref No 6

What This Product Does:

• Allowing trapped air or vapours to vent safely
• Maintaining stable system pressure
• Supporting efficient coolant or crankcase circulation (application dependent)
• Helping prevent pressure-related leaks
• Ensuring the system operates correctly without airlocks or restriction

Symptoms Of Wear Or Failure:

• Coolant or oil vapour leaks (depending on system type)
• Cracked, split, or brittle hose material
• Poor system bleeding or air trapped in the circuit
• Coolant loss or pressure issues
• Engine bay smells (coolant or oil vapour)
• Warning lights or fault codes in some cases
• Overheating or unstable temperature readings (if coolant-related)

Why Replacement Matters:

• Maintain correct ventilation and pressure control
• Prevent leaks and coolant/oil loss
• Support stable engine operating temperatures
• Avoid overheating and expensive repairs
• Restore proper system efficiency and reliability

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

95810631010

The product you are viewing cross references to these numbers

Breather Line.

The Breather Line is a genuine Porsche ventilation hose designed to support correct pressure regulation and airflow within the vehicle’s engine or cooling system ventilation circuit (depending on application). This line helps route trapped air or vapours through the correct system pathways, ensuring stable operation and preventing pressure build-up.

Fits:

• Porsche 958 Cayenne V6 3.6L Petrol (300Hp) 2015-17
• Porsche 958 Cayenne V6 3.0L Diesel (245Hp) 2015-17
• Porsche 958 Cayenne S V6 3.0L Hybrid (380Hp) 2015-17
• Porsche 958 Cayenne S V8 4.2L Diesel (382Hp) 2015-17

  
Diagram Ref No 6

What This Product Does:

• Allowing trapped air or vapours to vent safely
• Maintaining stable system pressure
• Supporting efficient coolant or crankcase circulation (application dependent)
• Helping prevent pressure-related leaks
• Ensuring the system operates correctly without airlocks or restriction

Symptoms Of Wear Or Failure:

• Coolant or oil vapour leaks (depending on system type)
• Cracked, split, or brittle hose material
• Poor system bleeding or air trapped in the circuit
• Coolant loss or pressure issues
• Engine bay smells (coolant or oil vapour)
• Warning lights or fault codes in some cases
• Overheating or unstable temperature readings (if coolant-related)

Why Replacement Matters:

• Maintain correct ventilation and pressure control
• Prevent leaks and coolant/oil loss
• Support stable engine operating temperatures
• Avoid overheating and expensive repairs
• Restore proper system efficiency and reliability

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

95810631011

The product you are viewing cross references to these numbers

Breather Line.

The Breather Line is a OE MATCH ventilation hose designed to support correct pressure regulation and airflow within the vehicle’s engine or cooling system ventilation circuit (depending on application). This line helps route trapped air or vapours through the correct system pathways, ensuring stable operation and preventing pressure build-up.

Fits:

• Porsche 958 Cayenne V6 3.6L Petrol (300Hp) 2015-17
• Porsche 958 Cayenne V6 3.0L Diesel (245Hp) 2015-17
• Porsche 958 Cayenne S V6 3.0L Hybrid (380Hp) 2015-17
• Porsche 958 Cayenne S V8 4.2L Diesel (382Hp) 2015-17

  
Diagram Ref No 6

What This Product Does:

• Allowing trapped air or vapours to vent safely
• Maintaining stable system pressure
• Supporting efficient coolant or crankcase circulation (application dependent)
• Helping prevent pressure-related leaks
• Ensuring the system operates correctly without airlocks or restriction

Symptoms Of Wear Or Failure:

• Coolant or oil vapour leaks (depending on system type)
• Cracked, split, or brittle hose material
• Poor system bleeding or air trapped in the circuit
• Coolant loss or pressure issues
• Engine bay smells (coolant or oil vapour)
• Warning lights or fault codes in some cases
• Overheating or unstable temperature readings (if coolant-related)

Why Replacement Matters:

• Maintain correct ventilation and pressure control
• Prevent leaks and coolant/oil loss
• Support stable engine operating temperatures
• Avoid overheating and expensive repairs
• Restore proper system efficiency and reliability

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

95810631011

The product you are viewing cross references to these numbers

Coolant Hose.

The Coolant Hose is a genuine Porsche cooling system component designed to transfer engine coolant between key cooling circuit connections. Built to withstand high temperatures and constant pressure, this hose plays an essential role in maintaining stable engine operating temperature and preventing overheating.

Fits:

• Porsche 958 Cayenne V6 3.6L Petrol (300Hp) 2010-17
• Porsche 958 Cayenne V6 3.0L Diesel (245Hp) 2010-17  

Diagram Ref No 30

What This Product Does:

• Carrying coolant between engine and cooling system components
• Maintaining proper coolant circulation
• Supporting temperature regulation under load
• Helping prevent overheating and engine damage
• Ensuring reliable operation of the cooling system

Symptoms Of Wear Or Failure:

• Coolant leaks under the vehicle
• Visible cracks, swelling, or soft spots on the hose
• Coolant smell from the engine bay
• Low coolant warning light or repeated coolant loss
• Engine overheating or rising temperature gauge
• Steam from the engine bay
• Coolant residue or staining around hose connections

Why Replacement Matters:

• Prevent sudden coolant leaks and breakdowns
• Maintain correct engine operating temperature
• Protect against overheating and costly repairs
• Ensure the cooling system remains sealed and pressurised
• Improve long-term reliability and performance

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

95810645810

The product you are viewing cross references to these numbers

Coolant Hose.

The Coolant Hose is a OE MATCH cooling system component designed to transfer engine coolant between key cooling circuit connections. Built to withstand high temperatures and constant pressure, this hose plays an essential role in maintaining stable engine operating temperature and preventing overheating.

Fits:

• Porsche 958 Cayenne V6 3.6L Petrol (300Hp) 2010-17
• Porsche 958 Cayenne V6 3.0L Diesel (245Hp) 2010-17  

Diagram Ref No 30

What This Product Does:

• Carrying coolant between engine and cooling system components
• Maintaining proper coolant circulation
• Supporting temperature regulation under load
• Helping prevent overheating and engine damage
• Ensuring reliable operation of the cooling system

Symptoms Of Wear Or Failure:

• Coolant leaks under the vehicle
• Visible cracks, swelling, or soft spots on the hose
• Coolant smell from the engine bay
• Low coolant warning light or repeated coolant loss
• Engine overheating or rising temperature gauge
• Steam from the engine bay
• Coolant residue or staining around hose connections

Why Replacement Matters:

• Prevent sudden coolant leaks and breakdowns
• Maintain correct engine operating temperature
• Protect against overheating and costly repairs
• Ensure the cooling system remains sealed and pressurised
• Improve long-term reliability and performance

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

95810645810

The product you are viewing cross references to these numbers

Coolant Vent Hose.

The Coolant Vent Hose is a genuine Porsche cooling system component designed to vent trapped air from the cooling circuit and maintain stable coolant circulation. This hose plays an important role in ensuring the cooling system remains properly bled, pressurised, and operating efficiently.

Fits:

• Porsche 958 Cayenne V6 3.6L Petrol (300Hp) 2010-17

Diagram Ref No 20

What This Product Does:

• Allowing trapped air to escape from the coolant system
• Helping prevent air pockets that reduce cooling efficiency
• Supporting stable coolant flow and system pressure
• Improving cooling system bleeding and circulation
• Reducing the risk of overheating caused by trapped air

Symptoms Of Wear Or Failure:

• Coolant leaks around the vent hose connections
• Cracks, splits, or brittle hose material
• Coolant smell from the engine bay
• Low coolant warning light or repeated coolant loss
• Overheating or fluctuating temperature readings
• Difficulty bleeding the cooling system
• Coolant residue or staining near hose joints

Why Replacement Matters:

• Maintain correct cooling system pressure
• Prevent air pockets and coolant circulation issues
• Avoid overheating and costly engine damage
• Restore leak-free operation and system reliability
• Ensure proper cooling system bleeding performance

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

95810642210

The product you are viewing cross references to these numbers

Coolant Vent Hose.

The Coolant Vent Hose is a OE MATCH cooling system component designed to vent trapped air from the cooling circuit and maintain stable coolant circulation. This hose plays an important role in ensuring the cooling system remains properly bled, pressurised, and operating efficiently.

Fits:

• Porsche 958 Cayenne V6 3.6L Petrol (300Hp) 2010-17

Diagram Ref No 20

What This Product Does:

• Allowing trapped air to escape from the coolant system
• Helping prevent air pockets that reduce cooling efficiency
• Supporting stable coolant flow and system pressure
• Improving cooling system bleeding and circulation
• Reducing the risk of overheating caused by trapped air

Symptoms Of Wear Or Failure:

• Coolant leaks around the vent hose connections
• Cracks, splits, or brittle hose material
• Coolant smell from the engine bay
• Low coolant warning light or repeated coolant loss
• Overheating or fluctuating temperature readings
• Difficulty bleeding the cooling system
• Coolant residue or staining near hose joints

Why Replacement Matters:

• Maintain correct cooling system pressure
• Prevent air pockets and coolant circulation issues
• Avoid overheating and costly engine damage
• Restore leak-free operation and system reliability
• Ensure proper cooling system bleeding performance

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

95810642210

The product you are viewing cross references to these numbers

Plastic coolant pipe – this intermediate piece connects the thermostat housing to the hose leading to the expansion tank. 

Fits:
Porsche 958 Cayenne 3.6L V6 2011-18

Diagram ref. 18.

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

95810602200

The product you are viewing cross references to these numbers