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Porsche > Cayenne 9PA1 (957) 2007-2010 > Engine Cooling > Coolant Hoses and Pipes (Front engine cars) >

Radiator Top / Bottom Hoses

Radiator Top / Bottom Hoses

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DISPLAYING 1 to 9 (of 9 products)
Radiator coolant hose kit. Porsche 957 Cayenne 3.6L 2007 - 2010 - 95510663320, 95510663220
2
Radiator coolant hose kit. Porsche 957 Cayenne 3.6L 2007 - 2010
WATERPIPEKIT957.36.OEM
Product Information
Product Information
Radiator coolant hose kit.
This OE Match Radiator Coolant Hose Kit is a complete replacement set of primary radiator coolant hoses and genuine OEM clamps for the Porsche 957 Cayenne 3.6 L petrol SUV. It refreshes the core cooling connections between the engine and radiator for reliable coolant flow and thermal management.

Fits:
Porsche 957 Cayenne 3.6L 2007 - 2010 (PR:D5X)

Diagram ref no 23, 27, 30 and 31

Coolant hoses are critical conduits for circulating engine coolant between the water pump, radiator, heater core, and other cooling system components. Over time, hoses can:
• Harden or soften due to heat cycling
• Develop external cracks or internal degradation
• Swell, blister, or collapse under pressure
•  Suffer clamp corrosion and leakage points.

When coolant hoses become compromised, they can reduce cooling efficiency, lead to coolant loss, and increase the risk of overheating - especially under load or in hot climates.

This kit includes two OE Match radiator coolant hoses (95510663320 and 95510663220) that match original Porsche dimensions, bend radii, and material hardness for a secure and leak-free fit. The hoses are engineered for correct coolant flow and long-term resistance to high temperature, pressure, and coolant exposure.

To complete the installation and ensure proper sealing, the kit also includes two genuine Porsche engine coolant hose clamps (99951266509) and two genuine radiator coolant hose clamps (N90926501). These clamps are designed to meet Porsche’s original specifications for strength and corrosion resistance, securing the hoses at both ends.

This comprehensive kit is ideal for cooling system servicing, radiator replacement, water pump service, or routine preventative maintenance on higher-mile Cayenne 957 vehicles.

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Related, superseded, cross reference or alternative numbers for comparison.

WATERPIPEKIT957.36.OEM
95510663320
95510663220

The product you are viewing cross references to these numbers
Coolant Hose. Porsche 957 Cayenne 3.6L 2007-10 - 95510663220
2
Coolant Hose. Porsche 957 Cayenne 3.6L 2007-10
Special Order item
95510663220
Product Information
Product Information
Coolant Hose.
The Coolant Hose is a genuine Porsche cooling system component designed to ensure reliable coolant flow between key engine and radiator system components. Built to withstand high operating temperatures and constant cooling system pressure, this hose plays a vital role in maintaining safe and consistent engine temperature.

Fits:
  • Porsche 957 Cayenne 3.6L 2007-10

Diagram Ref No 23

What This Product Does:

  • Transferring coolant throughout the engine cooling circuit
  • Maintaining consistent coolant circulation
  • Supporting proper cooling system pressure
  • Helping regulate engine operating temperature
  • Preventing overheating during daily or performance driving

Symptoms Of Wear Or Failure:
  • Coolant leaks or visible fluid under the vehicle
  • Cracks, swelling, soft spots, or brittle hose material
  • Coolant smell from the engine bay
  • Low coolant warning light
  • Engine overheating or fluctuating temperature readings
  • Steam from the engine compartment
  • Coolant residue or staining around hose connections

Why Replacement Matters:
  • Prevent sudden coolant loss and roadside breakdowns
  • Maintain proper coolant flow and cooling system efficiency
  • Protect the engine from overheating damage
  • Restore cooling system reliability
  • Avoid expensive repair costs caused by overheating



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

95510663220
95510663220

The product you are viewing cross references to these numbers
Coolant Hose. Porsche 957 Cayenne 3.6L 2007-10 - 95510663220
2
Coolant Hose. Porsche 957 Cayenne 3.6L 2007-10
95510663220/1
Product Information
Product Information
Coolant Hose.
The Coolant Hose is a OE MATCH cooling system component designed to ensure reliable coolant flow between key engine and radiator system components. Built to withstand high operating temperatures and constant cooling system pressure, this hose plays a vital role in maintaining safe and consistent engine temperature.

Fits:
  • Porsche 957 Cayenne 3.6L 2007-10

Diagram Ref No 23

What This Product Does:

  • Transferring coolant throughout the engine cooling circuit
  • Maintaining consistent coolant circulation
  • Supporting proper cooling system pressure
  • Helping regulate engine operating temperature
  • Preventing overheating during daily or performance driving

Symptoms Of Wear Or Failure:
  • Coolant leaks or visible fluid under the vehicle
  • Cracks, swelling, soft spots, or brittle hose material
  • Coolant smell from the engine bay
  • Low coolant warning light
  • Engine overheating or fluctuating temperature readings
  • Steam from the engine compartment
  • Coolant residue or staining around hose connections

Why Replacement Matters:
  • Prevent sudden coolant loss and roadside breakdowns
  • Maintain proper coolant flow and cooling system efficiency
  • Protect the engine from overheating damage
  • Restore cooling system reliability
  • Avoid expensive repair costs caused by overheating



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

95510663220
95510663220

The product you are viewing cross references to these numbers
O-Ring for Thermostat Housing - 29x3.5 - for Porsche 957 & 958 Cayenne 3.6L V6 2007-2018 - WHT000862
2
O-Ring for Thermostat Housing - 29x3.5 - for Porsche 957 & 958 Cayenne 3.6L V6 2007-2018
Special Order item
WHT000862
Product Information
Product Information
O-ring (29 x 3.5 mm) – seals the connection between the thermostat housing and the three-way plastic coolant connector that houses the temperature sensor.

Fits:
Porsche 957 Cayenne 3.6L V6 2007-10
Porsche 958 Cayenne 3.6L V6 2011-18

Diagram ref. 14.



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WHT000862
WHT000862

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Radiator coolant bottom hose, Feed. Porsche 957 Cayenne S / GTS 4.8L - 95510663200
3
Radiator coolant bottom hose, Feed. Porsche 957 Cayenne S / GTS 4.8L
Special Order item
95510663200
Product Information
Product Information
Radiator coolant bottom hose, Feed.

porsche

Fits:
Porsche 957 Cayenne S / GTS 4.8L 2007-10

Click 'Zoom in' for large parts diagram.
Diagram ref no 26

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95510663200
95510663200

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Radiator coolant top hose, Return. Porsche 957 Cayenne S / GTS / Turbo 4.8L - 95510663300
3
Radiator coolant top hose, Return. Porsche 957 Cayenne S / GTS / Turbo 4.8L
Special Order item
95510663300
Product Information
Product Information
Radiator coolant top hose, Return.

porsche

Fits:
Porsche 957 Cayenne S / GTS 4.8L 2007-10
Porsche 957 Cayenne Turbo 4.8L 2007-10

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

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

95510663300
95510663300

The product you are viewing cross references to these numbers
Radiator coolant top hose, Return. Porsche 957 Cayenne S / GTS / Turbo 4.8L 2007-10 - 95510663300
2
Radiator coolant top hose, Return. Porsche 957 Cayenne S / GTS / Turbo 4.8L 2007-10
95510663300/1
Product Information
Product Information
Radiator coolant top hose, Return.
The Radiator Coolant Top Hose – Return is a OE MATCH cooling system component designed to return heated coolant from the engine to the radiator for cooling. Positioned at the upper section of the radiator circuit, this hose plays a key role in maintaining proper coolant flow and stable engine temperature.  

Fits:
  • Porsche 957 Cayenne S / GTS 4.8L 2007-10
  • Porsche 957 Cayenne Turbo / Turbo S 4.8L 2007-10

Diagram Ref No 27

What This Product Does:

  • Carrying heated coolant from the engine to the radiator
  • Maintaining consistent coolant circulation
  • Supporting correct cooling system pressure
  • Helping regulate engine operating temperature
  • Ensuring efficient heat dissipation through the radiator

Symptoms Of Wear Or Failure:
  • Coolant leaks near the top of the radiator
  • Cracked, brittle, swollen, or soft hose material
  • Coolant smell from the engine bay
  • Low coolant warning light
  • Engine overheating or fluctuating temperature readings
  • Steam from the engine compartment
  • Coolant residue around hose clamps or fittings

Why Replacement Matters:
  • Prevent unexpected coolant leaks and breakdowns
  • Maintain proper coolant circulation and pressure
  • Protect the engine from overheating damage
  • Restore cooling system efficiency and reliability
  • Avoid costly repairs resulting from heat-related engine failure



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

95510663300
95510663300

The product you are viewing cross references to these numbers
Water coolant bottom hose supply. Porsche 957 Cayenne 4.8L - 95510663210
5
Water coolant bottom hose supply. Porsche 957 Cayenne 4.8L
Special Order item
95510663210
Product Information
Product Information
Water coolant bottom hose supply.

porsche

Fits: 
Porsche 957 Cayenne S 4.8L 2007-10 Cars with option code: 0Y2 (Tropical climatic zone)
Porsche 957 Cayenne Turbo 4.8L 2007-10

Click 'Zoom in' for large parts diagram.
Diagram ref no 26

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

95510663210
95510663210

The product you are viewing cross references to these numbers
Water Coolant Bottom Hose Supply. Porsche 957 Cayenne 4.8L 2007-10 - 95510663210
2
Water Coolant Bottom Hose Supply. Porsche 957 Cayenne 4.8L 2007-10
95510663210/1
Product Information
Product Information
Water Coolant Bottom Hose Supply.

The Water Coolant Bottom Hose – Supply is a OE MATCH cooling system component designed to deliver coolant through the lower section of the engine’s cooling circuit. This bottom supply hose plays a key role in directing cooled coolant between the radiator and engine, ensuring stable temperature control and efficient heat dissipation.

Fits:

  • Porsche 957 Cayenne S / GTS 4.8L 2007-10
  • Porsche 957 Cayenne Turbo / Turbo S 4.8L 2007-10  

Diagram Ref No 26

What This Product Does:
  • Delivering coolant from the radiator to the engine
  • Maintaining consistent coolant circulation
  • Supporting proper cooling system pressure
  • Helping regulate engine operating temperature
  • Preventing overheating during daily or heavy driving conditions

Symptoms Of Wear Or Failure:
  • Coolant leaks or puddles beneath the front of the vehicle
  • Cracked, swollen, brittle, or soft hose material
  • Coolant smell from the engine bay
  • Low coolant warning light
  • Engine overheating or rising temperature gauge
  • Steam from the lower engine area
  • Coolant residue near hose clamps or connections

Why Replacement Matters:
  • Prevent sudden coolant leaks and breakdowns
  • Maintain proper coolant flow and system pressure
  • Protect the engine from overheating damage
  • Restore reliable cooling system performance
  • Avoid expensive repair costs caused by heat-related engine damage



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

95510663210
95510663210

The product you are viewing cross references to these numbers
DISPLAYING 1 to 9 (of 9 products)
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About Radiator Top / Bottom Hoses

Radiator Top & Bottom Hoses – Reliable Cooling for Porsche Performance

Radiator top and bottom hoses are vital components of your Porsche’s cooling system, responsible for transporting coolant between the radiator and the engine. The top hose carries hot coolant from the engine to the radiator for cooling, while the bottom hose returns the cooled fluid back to the engine, maintaining optimal operating temperatures for performance, efficiency, and reliability.

At Design911, we offer a full range of genuine and manufacturer-quality radiator top and bottom hoses for Porsche models including 911, Boxster, Cayman, Cayenne, Macan, and Panamera. Each hose is precision-engineered for perfect fitment, high pressure tolerance, and exceptional heat resistance — ensuring reliable cooling under the most demanding driving conditions.

What Do Radiator Top and Bottom Hoses Do?

Coolant hoses are the lifelines of your Porsche’s cooling system, and the radiator hoses perform the following key functions:

  • Carry coolant between the radiator and the engine.
  • Regulate engine temperature for consistent performance.
  • Maintain coolant pressure throughout the cooling circuit.
  • Prevent overheating by ensuring efficient heat transfer.

Both the top and bottom hoses are designed to withstand high heat, vibration, and coolant pressure, providing dependable performance in every driving scenario.

Why Do Radiator Hoses Fail?

Over time, radiator hoses deteriorate due to heat, pressure, and exposure to coolant. Common causes of hose failure include:

  • Rubber cracking or hardening from continuous heat cycles.
  • Swelling or soft spots due to coolant chemical breakdown.
  • Leaks at hose ends or clamps from pressure loss.
  • Abrasion damage caused by engine vibration or contact.
  • Age-related material fatigue, especially in older vehicles.

Symptoms of hose failure include coolant leaks, visible cracks or bulges, fluctuating engine temperature, or a noticeable coolant smell in the engine bay.

Why Replace Faulty Radiator Hoses?

A leaking or weakened radiator hose can lead to overheating, coolant loss, and potential engine damage. Replacing these hoses as part of routine maintenance ensures consistent cooling performance and reliability.

Benefits of replacement include:

  • Restored coolant flow and temperature stability.
  • Prevention of leaks and overheating.
  • Improved cooling system pressure and performance.
  • Manufacturer-quality materials for long-term durability.

All radiator hoses in this range are made using reinforced, high-grade rubber and polymer compounds, designed to meet or exceed factory specifications for heat resistance, flexibility, and longevity.

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