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Radiator Top / Bottom Hoses
Fits:
Porsche 958 Cayenne 3.0L Hybrid 20115>>
Click 'Zoom in' for large parts diagram.
Diagram ref no 17
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
95810640121
The product you are viewing cross references to these numbers
- Porsche 958 Cayenne S V6 3.0L Hybrid (380Hp) 2010-17
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12 Month Warranty
Worldwide Delivery
Fits:
Porsche 958 Cayenne 3.0L 2011-18
Porsche 958 Cayenne 3.0L Hybrid >>2014
Click 'Zoom in' for large parts diagram.
Diagram ref no 17
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
95810640120
The product you are viewing cross references to these numbers
- Porsche 958 Cayenne S V6 3.0L Hybrid (380Hp) 2010-17
Shop Securely
12 Month Warranty
Worldwide Delivery
Fits:
Porsche 958 Cayenne 3.0L 2011-18
Porsche 958 Cayenne 3.0L Hybrid >>2014
Click 'Zoom in' for large parts diagram.
Diagram ref no 17
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
95810640120
The product you are viewing cross references to these numbers
- Porsche 958 Cayenne S V6 3.0L Hybrid (380Hp) 2010-17
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12 Month Warranty
Worldwide Delivery
This 95810640220 OE return coolant hose is designed for the Porsche Cayenne 958 Hybrid equipped with the 3.0 L V6 hybrid powertrain produced before 2014 (model years 2011–2014). It forms part of the main cooling system, specifically routing coolant in the lower/return portion of the circuit associated with the radiator.
Fits:
Porsche 958 Cayenne 3.0L Hybrid >> 2014
Diagram ref no 12
This genuine Porsche hose functions as a return line within the engine’s cooling system, carrying coolant back toward the radiator after it has circulated through the engine and absorbed heat. As part of the closed coolant circuit, it helps regulate engine temperature by ensuring efficient coolant flow - aiding heat exchange and preventing overheating under normal and high-load driving conditions. Its factory-matched design resists heat, pressure, and vibration typical of SUV cooling systems.
Fitment / Position on Car
• Installed on: Engine cooling return pathway
• Location: Connects radiator system return lines toward the main radiator inlet / network
• System interface: Works alongside upper/lower hoses, thermostat housings, coolant pipes and radiator fittings to ensure continuous coolant flow throughout the circuit.
Coolant hoses operate under constant stress from heat, pressure, and engine bay vibration. Over time, hoses can deteriorate, resulting in cracks, swelling, leaks, or failure - all of which can lead to coolant loss and overheating. Choosing a genuine Porsche OE hose ensures the correct material, fit, and durability that matches factory specifications, preserving cooling system integrity and helping prevent costly engine damage.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
95810640220
The product you are viewing cross references to these numbers
- Porsche 958 Cayenne S V6 3.0L Hybrid (380Hp) 2010-17
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12 Month Warranty
Worldwide Delivery
Ensure reliable cooling system performance with the Water Hose, Supply. This OE MATCH supply hose is designed to deliver coolant to key engine cooling components, supporting consistent circulation and effective heat management.
Fits:
- Porsche 958 Cayenne S V6 3.0L Hybrid (380Hp) 2010-14
Diagram Ref No 12
What This Product Does:
- Supplies coolant to cooling system components
- Maintains continuous coolant circulation
- Supports proper heat transfer and engine temperature control
- Helps prevent overheating by ensuring consistent coolant delivery
- Contributes to overall cooling system efficiency
Symptoms Of Wear Or Failure:
- Coolant leaks in the engine bay or under the vehicle
- Low coolant warning light
- Frequent coolant top-offs
- Engine overheating or rising temperature gauge
- Sweet coolant smell from the engine compartment
- Steam from under the hood in severe cases
- Cracks, splits, or dry rot on the hose surface
- Bulging or swelling due to internal weakening
- Soft, spongy, or brittle hose texture
- Coolant residue or dampness around hose clamps or fittings
- Replacing a worn water supply hose is essential to maintaining proper coolant delivery within the engine cooling system. Over time, heat, pressure, and coolant exposure can cause the hose to weaken, crack, or leak.
- If the hose fails, coolant flow to critical components may be reduced or lost, leading to overheating and potential engine damage. Even small leaks can lower coolant levels and reduce cooling efficiency.
- Installing a new hose helps restore reliable coolant circulation, prevent leaks, and protect the engine from costly overheating-related repairs.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
95810640220
The product you are viewing cross references to these numbers
- Porsche 958 Cayenne S V6 3.0L Hybrid (380Hp) 2010-17
Shop Securely
12 Month Warranty
Worldwide Delivery
This flexible coolant return hose is a genuine Porsche part designed for precision fitment, long-lasting durability, and reliable service in the engine cooling circuit of hybrid-equipped Cayenne models. This radiator coolant return hose is specified for use on the Porsche 958 Cayenne Hybrid, especially models equipped with the 3.0 L V6 hybrid powertrain produced approximately 2015 to 2018, where it forms part of the main radiator coolant system.
Fits:
Porsche 958 Cayenne 3.0L Hybrid 2015 - 2018
Diagram ref no 12
This coolant return hose plays a vital role in the engine’s liquid cooling system by routing coolant back toward the radiator after it has circulated through components such as the engine block and auxiliary coolers. Proper routing and leak-resistant sealing ensure that the cooling system maintains correct flow and pressure, helping the engine operate within optimal temperature limits and reducing the risk of overheating under typical driving conditions and higher loads.
Fitment / Position on Car
• Installed on: Engine cooling return pathway
• Location: Connects radiator system return lines toward the main radiator inlet / network
• System interface: Works alongside upper/lower hoses, thermostat housings, coolant pipes and radiator fittings to ensure continuous coolant flow throughout the circuit.
Coolant hoses operate under continuous thermal stress, pressure fluctuations, and vibration. Over time, hoses can soften, crack, or start leaking, leading to coolant loss and potential engine overheating. Using a genuine Porsche OE return hose ensures the correct hose design, material formulation, and connections - preserving cooling system integrity and performance. This helps maintain consistent engine temps, protects internal components from thermal stress, and supports overall engine durability.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
95810640221
The product you are viewing cross references to these numbers
- Porsche 958 Cayenne S V6 3.0L Hybrid (380Hp) 2010-17
Shop Securely
12 Month Warranty
Worldwide Delivery
The Water Hose, Supply is a genuine Porsche cooling system hose designed to supply coolant through the engine cooling circuit. This hose carries coolant from one cooling system component to another, ensuring consistent circulation and maintaining safe engine operating temperatures.
Fits:
- Porsche 958 Cayenne S V6 3.0L Hybrid (380Hp) 2015-18
Diagram Ref No 12
What This Product Does:
- Delivering coolant through the cooling system supply circuit
- Maintaining stable coolant flow and system pressure
- Supporting engine temperature regulation
- Helping prevent overheating under load
- Ensuring efficient cooling system performance
Symptoms Of Wear Or Failure:
- Coolant leaks or puddles beneath the vehicle
- Cracked, split, swollen, or brittle hose material
- Coolant smell from the engine bay
- Low coolant warning light
- Rising engine temperature or overheating
- Steam from the engine bay
- Coolant residue or staining around hose connections
Why Replacement Matters:
- Prevent sudden coolant loss and breakdowns
- Maintain proper coolant flow and pressure
- Protect the engine from overheating and costly repairs
- Restore reliable cooling system operation
- Reduce the risk of further damage to connected cooling components
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
95810640221
The product you are viewing cross references to these numbers
- Porsche 958 Cayenne S V6 3.0L Hybrid (380Hp) 2010-17
Shop Securely
12 Month Warranty
Worldwide Delivery
Fits:
Porsche 958 Cayenne 3.0L (petrol) >>2012
Porsche 958 Cayenne 3.0L HYBRID >>2012
Click 'Zoom in' for large parts diagram.
Diagram ref no 7
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
95810631021
The product you are viewing cross references to these numbers
- Porsche 958 Cayenne S V6 3.0L Hybrid (380Hp) 2010-17
Shop Securely
12 Month Warranty
Worldwide Delivery
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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