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Expansion Tank Hoses

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DISPLAYING 1 to 16 (of 17 products)
1 2
WATERPIPEKIT04
Product Information
Product Information
Complete water hose kit.

Fits:
Porsche 944 S2 3.0L 1989-91

Click 'Zoom in' for large parts diagram.
Diagram ref no 17, 20, 23, 25, 27, 28, 30, 34, 37 and 39.

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Related, superseded, cross reference or alternative numbers for comparison.

WATERPIPEKIT04
94410623501
94410623602
94410625301
94410624104
94410621702
94410623906
94410625100
95110623704
94410610302
95110624901

The product you are viewing cross references to these numbers
Special Order item
95110624706
Product Information
Product Information
Coolant feed hose. Turbo water pump feed hose to reservoir & pipe.

porsche

Fits:
Porsche 944 Turbo 2.5L 1986-87
** only with engine type M44.50 and M44.51

Click 'Zoom in' for large parts diagram.
Diagram ref no 36

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95110624706
95110624702
95110624706

The product you are viewing cross references to these numbers
95110624706/1
Product Information
Product Information
Coolant feed hose. Turbo water pump feed hose to reservoir & pipe.

oematch

Fits:
Porsche 944 Turbo 2.5L 1986-87

Click 'Zoom in' for large parts diagram.
Diagram ref no 36

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Related, superseded, cross reference or alternative numbers for comparison.

95110624706
95110624701
95110624702
95110624706

The product you are viewing cross references to these numbers
94410625100/1
Product Information
Product Information
Expansion tank hose.

oematch

Fits:
Porsche 924S 1986-88
Porsche 944 1987-91
Porsche 968 1992-95

Click "Zoom in" to see the diagram.
Diagram ref no 21.

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Related, superseded, cross reference or alternative numbers for comparison.

94410625100
94410625100

The product you are viewing cross references to these numbers
Special Order item
95110625102
Product Information
Product Information
Expansion tank hose.

porsche

Fits:
Porsche 944 Turbo 1985-91

Click "Zoom in" to see the diagram.
Diagram ref no 35.

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Related, superseded, cross reference or alternative numbers for comparison.

95110625102
95110625102

The product you are viewing cross references to these numbers
95110625102/1
Product Information
Product Information
Expansion tank hose.

oematch

Fits:
Porsche 944 Turbo 1985-91

Click "Zoom in" to see the diagram.
Diagram ref no 35.

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95110625102
95110625102

The product you are viewing cross references to these numbers
Special Order item
94410624501
Product Information
Product Information
Radiator hose to expansion tank, Large.

porsche

Fits:
Porsche 944 1982-85

Click 'Zoom in' to see the diagram.
Diagram ref no 10.

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94410624501
94410624501

The product you are viewing cross references to these numbers
94410624501/1
Product Information
Product Information
Radiator hose to expansion tank, Large.

oematch

Fits:
Porsche 944 1982-85

Click 'Zoom in' to see the diagram.
Diagram ref no 10.

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94410624501
94410624501

The product you are viewing cross references to these numbers
Special Order item
94410624502
Product Information
Product Information
Radiator hose to expansion tank, Large.

porsche

Fits:
Porsche 944 1985-88

Click 'Zoom in' to see the diagram.
Diagram ref no 10.

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94410624502
94410624502

The product you are viewing cross references to these numbers
94410624502/1
Product Information
Product Information
Radiator hose to expansion tank, Large. Porsche 944 1985-88

oematch

Fits:
Porsche 944 1985-88

Click 'Zoom in' to see the diagram.
Diagram ref no 10.

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94410624502
94410624502

The product you are viewing cross references to these numbers
Special Order item
94410624903
Product Information
Product Information
Radiator Overflow Hose. From radiator overflow to coolant reservoir.

porsche

Fits:
Porsche 924S 1986-88
Porsche 944 1982-85
Porsche 944.2 2.7L 1989-91

Click 'Zoom in' for large parts diagram.
Diagram ref no 32

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94410624903
94410624901
94410624903

The product you are viewing cross references to these numbers
94410624903/1
Product Information
Product Information
Radiator Overflow Hose. From radiator overflow to coolant reservoir.

oematch

Fits:
Porsche 924S 1986-88
Porsche 944 1982-85
Porsche 944.2 2.7L 1989-91

Click 'Zoom in' for large parts diagram.
Diagram ref no 32

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94410624903
94410624901
94410624903

The product you are viewing cross references to these numbers
Special Order item
94410692700
Product Information
Product Information
Radiator overflow hose fitting.

porsche

Fits:
Porsche 924S 1986-88
Porsche 944 1985-91
Porsche 968 1992-95

Click 'Zoom in' for large parts diagram.
Diagram ref no 27

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94410692700
94410692700

The product you are viewing cross references to these numbers
94410692700/1
Product Information
Product Information
Screw-in connector for radiator, aluminium.
Reference number: 94410692700.

nordschleife

Fits:
Porsche 924S 1986-88
Porsche 944 1985-91
Porsche 968 1992-95

Here you will receive a screw-in connector made of aluminium for the radiator of your Porsche 924, 944 II, 944 turbo and 968, which connects the radiator with the hose of the expansion tank.

Made in Germany

Click 'Zoom in' for large parts diagram.
Diagram ref no 27

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

94410692700
7307
94410692700

The product you are viewing cross references to these numbers
Special Order item
94410621702
Product Information
Product Information
Water radiator hose. Expansion tank to water pump.

porsche

Fits:
Porsche 944 S2 3.0L 1989-91

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

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

94410621702
94410621702

The product you are viewing cross references to these numbers
Special Order item
95110624901
Product Information
Product Information
Water expansion tank hose small.

porsche

Fits:
Porsche 968 1992-95
Porsche 944 1985-91

Click 'Zoom in' for large parts diagram.
Diagram ref no 34.

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95110624901
95110624901

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DISPLAYING 1 to 16 (of 17 products)
1 2
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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