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Porsche > Cayenne 92A (958) 2010-2017 > 958 Cayenne Turbo V8 4.8L Petrol (500Hp) 2010-17 > Engine Cooling > Coolant Hoses and Pipes >

Expansion Tank Hoses

Expansion Tank Hoses

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DISPLAYING 1 to 12 (of 12 products)
Bleeder valve vent hose. Porsche 958 Cayenne / S / Turbo - 95810631201
4
Bleeder valve vent hose. Porsche 958 Cayenne / S / Turbo
Special Order item
95810631201
Product Information
Product Information
Bleeder valve vent hose.

porsche

Fits:
Porsche 958 Cayenne 3.6L / S 4.8L / Turbo 4.8L 2011-18

Click 'Zoom in' for large parts diagram.
Diagram ref no 6

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95810631201
95810631201

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Bleeder valve vent hose. Porsche 958 Cayenne / S / Turbo - 95810631201
2
Bleeder valve vent hose. Porsche 958 Cayenne / S / Turbo
95810631201/1
Product Information
Product Information
Bleeder valve vent hose.

oematch

Fits:
Porsche 958 Cayenne 3.6L / S 4.8L / Turbo 4.8L 2011-18

Click 'Zoom in' for large parts diagram.
Diagram ref no 6

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95810631201
95810631201

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Breather hose. Porsche 958 Cayenne Turbo - 95810642200
3
Breather hose. Porsche 958 Cayenne Turbo
Special Order item
95810642200
Product Information
Product Information
Breather hose.

porsche

Fits:
Porsche 958 Cayenne Turbo 4.8L 2011-17

Click 'Zoom in' for large parts diagram.
Diagram ref no 20

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95810642200
95810642200

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Breather hose. Porsche 958 Cayenne Turbo - 95810642200
3
Breather hose. Porsche 958 Cayenne Turbo
95810642200/1
Product Information
Product Information
Breather hose.

oematch

Fits:
Porsche 958 Cayenne Turbo 4.8L 2011-17

Click 'Zoom in' for large parts diagram.
Diagram ref no 20

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Related, superseded, cross reference or alternative numbers for comparison.

95810642200
95810642200

The product you are viewing cross references to these numbers
Breather Line, Radiator To Bleeder Valve. Porsche 958 Cayenne 3.6L / 4.8L 2010-17 - 95810631050
2
Breather Line, Radiator To Bleeder Valve. Porsche 958 Cayenne 3.6L / 4.8L 2010-17
Special Order item
95810631050
Product Information
Product Information

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
95810631050

The product you are viewing cross references to these numbers
Breather Line, Radiator To Bleeder Valve. Porsche 958 Cayenne 3.6L / 4.8L 2010-17 - 95810631050
2
Breather Line, Radiator To Bleeder Valve. Porsche 958 Cayenne 3.6L / 4.8L 2010-17
95810631050/1
Product Information
Product Information

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
95810631050

The product you are viewing cross references to these numbers
Breather valve to radiator vent line. Porsche 958 Cayenne S / Turbo - 95810631005
2
Breather valve to radiator vent line. Porsche 958 Cayenne S / Turbo
Special Order item
95810631005
Product Information
Product Information
Breather valve to radiator vent line.

porsche

Fits:
Porsche 958 Cayenne S 4.8L / Turbo 4.8L 2011-18

Click 'Zoom in' for large parts diagram.
Diagram ref no 8

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

95810631005
95810631005

The product you are viewing cross references to these numbers
Breather Valve To Radiator Vent Line. Porsche 958 Cayenne S / Turbo 4.8L 2010-17 - 95810631005
2
Breather Valve To Radiator Vent Line. Porsche 958 Cayenne S / Turbo 4.8L 2010-17
95810631005/1
Product Information
Product Information
Breather Valve To Radiator Vent Line.

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

Fits:

  • Porsche 958 Cayenne S 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
  • Prevents 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 breather valve or radiator 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 valve to radiator vent line is essential for maintaining proper cooling system ventilation and pressure balance. Over time, heat and coolant exposure can cause the line to crack, harden, or leak.
  • If the vent line fails, air can become trapped in the radiator circuit, reducing coolant circulation and cooling efficiency. This may lead to fluctuating engine temperatures, overheating, and potential engine damage.
  • Installing a new vent line helps ensure proper system bleeding, prevents leaks, maintains stable coolant pressure, and protects the engine from heat-related issues.



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

95810631005
95810631005

The product you are viewing cross references to these numbers
Vent hose water coolant. Porsche 958 Cayenne 4.8ltr V8 - 95810631101
2
Vent hose water coolant. Porsche 958 Cayenne 4.8ltr V8
Special Order item
95810631101
Product Information
Product Information
Vent hose water coolant. 

porsche

Fits:
Porsche 958 Cayenne S / GTS 4.8ltr V8 - 2010 to 2017
Porsche 958 Cayenne turbo / turbo S - 2010 to 2017

Click 'Zoom in' for large parts diagram.
Diagram ref no 9



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

95810631101
95810631101

The product you are viewing cross references to these numbers
Vent hose water coolant. Porsche 958 Cayenne 4.8ltr V8 - 95810631101
2
Vent hose water coolant. Porsche 958 Cayenne 4.8ltr V8
95810631101/1
Product Information
Product Information
Vent hose water coolant. 

oematch

Fits:
Porsche 958 Cayenne S / GTS 4.8ltr V8 - 2010 to 2017
Porsche 958 Cayenne turbo / turbo S - 2010 to 2017

Click 'Zoom in' for large parts diagram.
Diagram ref no 9



Related reference numbers
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95810631101
95810631101

The product you are viewing cross references to these numbers
Water coolant hose. Porsche 958 Cayenne 4.8ltr V8 - 95810626101
5
Water coolant hose. Porsche 958 Cayenne 4.8ltr V8
Special Order item
95810626101
Product Information
Product Information
Water coolant hose. 

porsche

Fits:
Porsche 958 Cayenne S / GTS 4.8ltr V8 - 2010 to 2017
Porsche 958 Cayenne turbo / turbo S - 2010 to 2017

Click 'Zoom in' for large parts diagram.
Diagram ref no 17



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

95810626101
95810626101

The product you are viewing cross references to these numbers
Water coolant hose. Porsche 958 Cayenne 4.8ltr V8 - 95810626101
2
Water coolant hose. Porsche 958 Cayenne 4.8ltr V8
95810626101/1
Product Information
Product Information
Water coolant hose. 

oematch

Fits:
Porsche 958 Cayenne S / GTS 4.8ltr V8 - 2010 to 2017
Porsche 958 Cayenne turbo / turbo S - 2010 to 2017

Click 'Zoom in' for large parts diagram.
Diagram ref no 17



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

95810626101
95810626101

The product you are viewing cross references to these numbers
DISPLAYING 1 to 12 (of 12 products)
Also found on these pages
About Expansion Tank Hoses

Expansion Tank Coolant Hoses – Reliable Cooling Connections for Porsche Vehicles

Expansion tank coolant hoses are essential components in your Porsche’s cooling system. They connect the coolant expansion tank (reservoir) to the radiator, water pump, and engine, allowing the system to maintain correct pressure and coolant levels during operation. These hoses ensure that excess coolant flows smoothly between the tank and the rest of the system — preventing overheating, leaks, and pressure loss.

At Design911, we supply a full range of genuine and manufacturer-quality expansion tank coolant hoses for Porsche models including 911, Boxster, Cayman, Cayenne, Macan, and Panamera. Each hose is engineered for precise fitment, heat resistance, and long-term durability, ensuring your Porsche’s cooling system performs exactly as intended by the manufacturer.

What Do Expansion Tank Coolant Hoses Do?

Expansion tank hoses act as the link between the coolant reservoir and the engine cooling circuit, helping to:

  • Transport coolant to and from the expansion tank as temperatures fluctuate.
  • Maintain proper pressure balance within the cooling system.
  • Allow coolant recovery as the system heats up and cools down.
  • Prevent air pockets that can cause inefficient cooling or engine overheating.

Without properly functioning hoses, the cooling system cannot maintain the balance of pressure and temperature required for optimal performance.

Why Do Expansion Tank Coolant Hoses Fail?

Due to constant exposure to heat, pressure, and coolant chemicals, these hoses can degrade or fail over time. Common causes include:

  • Rubber fatigue or cracking from repeated heat cycles.
  • Coolant leaks caused by weakened hose ends or clamps.
  • Swelling or softening from prolonged coolant contact.
  • Aging materials losing elasticity and sealing ability.
  • Corrosion or contamination around connectors and fittings.

Typical signs of failure include visible cracks, coolant leaks near the expansion tank, fluctuating coolant levels, or overheating warnings.

Why Replace Faulty Expansion Tank Coolant Hoses?

A damaged or leaking expansion tank hose can cause coolant loss, air pockets, or pressure imbalance, leading to overheating or potential engine damage. Replacing these hoses is a simple but critical maintenance step to keep your Porsche’s cooling system running reliably.

Benefits of replacement include:

  • Restored coolant flow and pressure regulation.
  • Prevention of leaks and air ingress.
  • Enhanced engine performance and temperature stability.
  • Long-lasting, manufacturer-quality durability and fitment.

All hoses in this range are made using high-grade, reinforced materials designed to meet or exceed factory standards, ensuring exceptional performance, heat resistance, and reliability under all driving conditions.

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