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Water coolant top hose to cylinder head. Porsche 944 1983-85 - 94410623902
94410623902/1
Vehicle Group
- Porsche 944 2.5L 8V 1982-87
Information
Water coolant top hose to cylinder head.
This replacement coolant hose connects the upper radiator outlet to the cylinder head on early Porsche 944 models (1983-85). This hose conforms to original Porsche specifications in diameter, length, routing, and material grade. Constructed from high-temperature-resistant rubber with the correct wall thickness, it restores proper coolant flow, prevents leaks, and maintains the reliability of the vehicle's cooling system.
Fits:
Porsche 944 1983 - 1985
Engine type: 4401 / 4402 / 4403 / 4404
M 41D 1286 >>
M 41D 5165 >>
M 43D 3440 >>
M 43D 5518 >>
Diagram ref no 9A.
• Position on Vehicle: Engine bay – upper radiator hose connecting the top of the radiator to the cylinder head.
The upper radiator hose is a critical link in the engine’s cooling circuit: if it fails, you risk coolant leaks, overheating, engine damage, loss of heater performance and unexpected roadside breakdowns. Symptoms of a failing hose include bulging, cracking, coolant smell, visible coolant loss or temperature rise. Replacing the hose ensures proper coolant delivery, secure clamping, correct routing and long-term reliability.
When and why to replace:
• Visible cracks, bulging or soft spots on the existing hose.
• Hose has become hard, inflexible or distorted and may collapse under engine vacuum/pressure.
• Leaks or coolant loss are detected at the top radiator connection.
• During cooling system service: radiator removal, cylinder head service or hose age exceeds recommended lifespan (especially on classic vehicles).
• When the vehicle is undergoing restoration and you require correct-spec parts for peace of mind and authenticity.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
94410623902
The product you are viewing cross references to these numbers
This replacement coolant hose connects the upper radiator outlet to the cylinder head on early Porsche 944 models (1983-85). This hose conforms to original Porsche specifications in diameter, length, routing, and material grade. Constructed from high-temperature-resistant rubber with the correct wall thickness, it restores proper coolant flow, prevents leaks, and maintains the reliability of the vehicle's cooling system.
Fits:
Porsche 944 1983 - 1985
Engine type: 4401 / 4402 / 4403 / 4404
M 41D 1286 >>
M 41D 5165 >>
M 43D 3440 >>
M 43D 5518 >>
Diagram ref no 9A.
• Position on Vehicle: Engine bay – upper radiator hose connecting the top of the radiator to the cylinder head.
The upper radiator hose is a critical link in the engine’s cooling circuit: if it fails, you risk coolant leaks, overheating, engine damage, loss of heater performance and unexpected roadside breakdowns. Symptoms of a failing hose include bulging, cracking, coolant smell, visible coolant loss or temperature rise. Replacing the hose ensures proper coolant delivery, secure clamping, correct routing and long-term reliability.
When and why to replace:
• Visible cracks, bulging or soft spots on the existing hose.
• Hose has become hard, inflexible or distorted and may collapse under engine vacuum/pressure.
• Leaks or coolant loss are detected at the top radiator connection.
• During cooling system service: radiator removal, cylinder head service or hose age exceeds recommended lifespan (especially on classic vehicles).
• When the vehicle is undergoing restoration and you require correct-spec parts for peace of mind and authenticity.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
94410623902
94410623902
The product you are viewing cross references to these numbers
Price: €83.30
In stock
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Vehicle Group
- Porsche 955 Cayenne S 4.5L V8 2003-06
- Porsche 955 Cayenne Turbo 4.5L 2003-06
- Porsche 955 Cayenne Turbo S 4.5L 2006>>
Information
Water coolant radiator bottom hose. Supply
Fits:
Porsche 955 Cayenne S - 2003 to 2006
Porsche 955 Cayenne turbo - 2003 to 2006
Related reference numbers
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95510623910
The product you are viewing cross references to these numbers
Fits:
Porsche 955 Cayenne S - 2003 to 2006
Porsche 955 Cayenne turbo - 2003 to 2006
Diagram ref no 9
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95510623910
95510623910
The product you are viewing cross references to these numbers
Price: €45.22
In stock
Vehicle Group
- Porsche 955 Cayenne 3.2L V6 2003-06
Information
Water coolant bottom hose
This OE Match water coolant bottom hose is a direct replacement for the original Porsche lower radiator hose fitted to Porsche 955 Cayenne 3.2L V6 models produced between 2003 and 2006. It forms part of the engine cooling system and transfers coolant between the radiator and engine cooling circuit to help maintain correct operating temperature and cooling efficiency.
Fits:
Porsche 955 Cayenne 3.2L V6 2003 - 2006
Diagram ref no 1
The lower coolant hose transfers cooled coolant from the radiator back into the engine cooling system, helping maintain stable engine temperatures and efficient cooling system operation.
This hose is ideal for preventative cooling system maintenance, radiator servicing, or replacement during thermostat, water pump, or engine cooling repairs on Porsche 955 Cayenne V6 models.
Function
• Connects radiator to engine cooling circuit
• Transfers cooled coolant back to the engine
• Maintains stable engine operating temperature
• Supports efficient coolant circulation and pressure regulation
• Helps reduce risk of overheating and coolant loss
Cooling system hoses operate under constant heat, pressure, and vibration. Over time, hose material can deteriorate internally and externally, increasing the risk of leaks and cooling system pressure loss. A failed lower radiator hose may cause rapid coolant loss and engine overheating. Replacing worn coolant hoses helps maintain reliable cooling system performance and protects the engine from costly overheating damage.
When to replace
• Visible coolant leaks or staining
• Cracked, swollen, or brittle hose material
• Cooling system pressure loss
• Overheating or fluctuating coolant temperatures
• During radiator or thermostat replacement
• During preventative cooling system servicing
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
95510605100
The product you are viewing cross references to these numbers
This OE Match water coolant bottom hose is a direct replacement for the original Porsche lower radiator hose fitted to Porsche 955 Cayenne 3.2L V6 models produced between 2003 and 2006. It forms part of the engine cooling system and transfers coolant between the radiator and engine cooling circuit to help maintain correct operating temperature and cooling efficiency.
Fits:
Porsche 955 Cayenne 3.2L V6 2003 - 2006
Diagram ref no 1
The lower coolant hose transfers cooled coolant from the radiator back into the engine cooling system, helping maintain stable engine temperatures and efficient cooling system operation.
This hose is ideal for preventative cooling system maintenance, radiator servicing, or replacement during thermostat, water pump, or engine cooling repairs on Porsche 955 Cayenne V6 models.
Function
• Connects radiator to engine cooling circuit
• Transfers cooled coolant back to the engine
• Maintains stable engine operating temperature
• Supports efficient coolant circulation and pressure regulation
• Helps reduce risk of overheating and coolant loss
Cooling system hoses operate under constant heat, pressure, and vibration. Over time, hose material can deteriorate internally and externally, increasing the risk of leaks and cooling system pressure loss. A failed lower radiator hose may cause rapid coolant loss and engine overheating. Replacing worn coolant hoses helps maintain reliable cooling system performance and protects the engine from costly overheating damage.
When to replace
• Visible coolant leaks or staining
• Cracked, swollen, or brittle hose material
• Cooling system pressure loss
• Overheating or fluctuating coolant temperatures
• During radiator or thermostat replacement
• During preventative cooling system servicing
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
95510605100
95510605100
The product you are viewing cross references to these numbers
Price: €33.32
In stock
Vehicle Group
- Porsche 955 Cayenne S 4.5L V8 2003-06
- Porsche 955 Cayenne Turbo 4.5L 2003-06
- Porsche 955 Cayenne Turbo S 4.5L 2006>>
Information
Water coolant radiator top hose - Return
Fits:
Porsche 955 Cayenne S - 2003 to 2006
Porsche 955 Cayenne turbo - 2003 to 2006
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
95510623800
The product you are viewing cross references to these numbers
Fits:
Porsche 955 Cayenne S - 2003 to 2006
Porsche 955 Cayenne turbo - 2003 to 2006
Click 'Zoom in' for large parts diagram.
Diagram ref no 11
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95510623800
95510623800
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Price: €37.49
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