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Porsche Panamera 970 MK2 (2014-2016) 970.2 Panamera Turbo V8 Executive 2014-16 Engine Cooling Coolant Hoses and Pipes (Front engine cars)

Radiator Top / Bottom Hoses

Radiator Top / Bottom Hoses

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DISPLAYING 1 to 5 (of 5 products)
Coolant return hose. Porsche 970 Panamera S / 4S / GTS / Turbo / Turbo S / Turbo Executive 4.8L 2009-16 - 97010640102
4
Coolant return hose. Porsche 970 Panamera S / 4S / GTS / Turbo / Turbo S / Turbo Executive 4.8L 2009-16
97010640102/1
Product Information
Product Information

OE Match coolant return hose, this is the return line within the coolant expansion tank assembly.

Fits

  • Porsche 970 Panamera S / GTS / Turbo 4.8L 2010-16

Check fitment for your specific vehicle (model, year, engine) before ordering.

Diagram ref no 34

What This Product Does

This hose provides a passage for returning coolant within the engine cooling circuit. It forms part of the expansion tank pipework; it is not the tank, cap, level sender or adjacent breather line.

Functions

  • Routes coolant through the return connection.
  • Connects the relevant sections of cooling-system pipework.
  • Contains coolant along the return path when correctly installed.

Technical Details

  • Brand: OE Match.
  • Part reference: 97010640102.
  • Component identification: coolant hose, return line.
  • Engine/model identifiers recorded for this part: 4820, 4840, 4870, CXPA, CXRA, CXR, CWBA, CWB, CWCA, CWC.

Symptoms of Fault

  • Moisture around the hose or its connections.
  • Dried coolant deposits near joints.
  • A sweet odour accompanied by coolant loss.
  • Repeated low-coolant warnings.
  • Visible splits, swelling or softened areas.
  • Leakage that becomes apparent after driving.
  • Gurgling noises or an increase in engine temperature.

These signs can originate elsewhere in the cooling system. Confirm the leak location before replacing the hose.

Why Replacement Matters

A deteriorated return hose can allow coolant to escape, leaving the cooling circuit unable to operate correctly. Renewing a confirmed leaking or damaged hose addresses that fault rather than relying on repeated top-ups. Inspect adjoining connections, retaining clips and sealing surfaces during the repair, as worn supporting components can cause further leakage.

FAQs

How can a suspected hose leak be confirmed?
Inspect the hose and connections for fresh moisture and deposits. A cooling-system pressure test can help identify the source.

Should the connections be checked too?
Yes. Examine clips, seals and connecting fittings rather than assuming the hose alone is responsible.

Why might leakage appear only intermittently?
A weakened joint may leak only when the coolant is hot and the system is pressurised.



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

97010640102
97010640102

The product you are viewing cross references to these numbers
Distributor tube (Left / Return) for water radiator. Porsche 970 Panamera - 97010623101
2
Distributor tube (Left / Return) for water radiator. Porsche 970 Panamera
Special Order item
97010623101
Product Information
Product Information
Water radiator distributor tube. Left / Return.

Fits:
Porsche 970 Panamera 2010 - 2016 3.0L / 3.6L / 4.8L engines

This component is integral to the engine's cooling system, facilitating the circulation of coolant between the radiator and the engine to maintain optimal operating temperatures.

Diagram ref no 12

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

97010623101
97010623101

The product you are viewing cross references to these numbers
Distributor tube (Left / Return) for water radiator. Porsche 970 Panamera - 97010623101
2
Distributor tube (Left / Return) for water radiator. Porsche 970 Panamera
97010623101/1
Product Information
Product Information
Water radiator distributor tube. Left / Return. Includes new temperature sensor

Fits:
Porsche 970 Panamera 2010 - 2016 3.6L / 4.8L
Porsche 970 Panamera 2010 - 2016 3.0L* 
* Pre fitted temperature sensor can be removed and old bung swapped in it's place.


This component is integral to the engine's cooling system, facilitating the circulation of coolant between the radiator and the engine to maintain optimal operating temperatures.

Diagram ref no 12



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

97010623101
97010623101

The product you are viewing cross references to these numbers
Distributor tube (Right / Feed) for water radiator. Porsche 970 Panamera - 97010623201
3
Distributor tube (Right / Feed) for water radiator. Porsche 970 Panamera
Special Order item
97010623201
Product Information
Product Information
Water radiator distributor tube. Right / Feed.

Fits:
Porsche 970 Panamera 2010 - 2016 3.0L / 3.6L / 4.8L engines

 * not for 3.0L Hybrid 2014-16

This component is integral to the engine's cooling system, facilitating the circulation of coolant between the radiator and the engine to maintain optimal operating temperatures.

Diagram ref no 13

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

97010623201
97010623201

The product you are viewing cross references to these numbers
Distributor tube (Right / Feed) for water radiator. Porsche 970 Panamera - 97010623201
3
Distributor tube (Right / Feed) for water radiator. Porsche 970 Panamera
97010623201/1
Product Information
Product Information
Water radiator distributor tube. Right / Feed.

Fits:
Porsche 970 Panamera 2010 - 2016 3.0L / 3.6L / 4.8L engines

 * not for 3.0L Hybrid 2014-16

This component is integral to the engine's cooling system, facilitating the circulation of coolant between the radiator and the engine to maintain optimal operating temperatures.

Diagram ref no 13

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

97010623201
97010623201

The product you are viewing cross references to these numbers
DISPLAYING 1 to 5 (of 5 products)
Also found on these pages
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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