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Porsche > Panamera 976 2023>> > 976 Panamera GTS V8 4.0L 2023>> > Engine Cooling > Coolant Hoses and Pipes >

Radiator Top / Bottom Hoses

Radiator Top / Bottom Hoses

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DISPLAYING 1 to 2 (of 2 products)
Distributor For Coolant. Porsche 971.1 / 971.2 / 976 Panamera 2017>> - 9A712143800, 9A712143810
3
Distributor For Coolant. Porsche 971.1 / 971.2 / 976 Panamera 2017>>
Special Order item
9A7121438
Product Information
Product Information
Distributor For Coolant.
The Distributor for Coolant, is a genuine Porsche OEM coolant distribution tube designed for the left side of the engine cooling system on Porsche Panamera (971 and 976) models. This component routes and distributes coolant between the radiator and engine cooling circuits, ensuring proper coolant flow and efficient heat dissipation. Manufactured to Porsche specifications, it provides precise fitment, secure sealing, and durability under high-temperature and pressurised conditions. This coolant distributor helps maintain stable engine operating temperatures and reliable cooling system performance.  

Fits:
  • Porsche 971.1 Panamera V6 3.0L 2WD (330 Hp) 2017-20
  • Porsche 971.1 Panamera 4 V6 3.0L 4WD (330 Hp) 2017-20
  • Porsche 971.1 Panamera 4 V6 3.0L 4WD Executive 2017-20
  • Porsche 971.1 Panamera 4 3.0L Turbocharged V6 Sport Turismo 2017-20
  • Porsche 971.1 Panamera 4S V6 3.0L 4WD (440 Hp) 2017-20
  • Porsche 971.1 Panamera 4S V6 3.0L 4WD Executive 2017-20
  • Porsche 971.1 Panamera 4S 2.9L Twin-Turbo V6 Sport Turismo 2017-20
  • Porsche 971.1 Panamera 4S Diesel V8 4.0L 4WD (422 Hp) 2017-18
  • Porsche 971.1 Panamera 4S Diesel 4.0L Twin-Turbo V8 Sport Turismo 2017-18
  • Porsche 971.1 Panamera 4 E-Hybrid V6 2.9L 4WD 2017-20
  • Porsche 971.1 Panamera 4 E-Hybrid V6 2.9L 4WD Executive 2017-20
  • Porsche 971.1 Panamera 4 E-Hybrid 2.9L Twin-Turbo V6 Sport Turismo 2017-20
  • Porsche 971.1 Panamera Turbo V8 4.0L 4WD (550 Hp) 2017-20
  • Porsche 971.1 Panamera Turbo V8 4.0L 4WD Executive 2017-20
  • Porsche 971.1 Panamera Turbo 4.0L Twin-Turbo V8 Sport Turismo 2017-20
  • Porsche 971.1 Panamera Turbo S E-Hybrid V8 4.0L 4WD 2017-20
  • Porsche 971.1 Panamera Turbo S E-Hybrid V8 4.0L 4WD Executive 2017-20
  • Porsche 971.2 Panamera 2.9L V6 2021-23
  • Porsche 971.2 Panamera 4 2.9L V6 2021-23
  • Porsche 971.2 Panamera 4 Sport Turismo 2.9L V6 2021-23
  • Porsche 971.2 Panamera 4S 2.9L V6 2021-23
  • Porsche 971.2 Panamera 4S Sport Turismo 2.9L V6 2021-23
  • Porsche 971.2 Panamera 4 E-Hybrid 2.9L V6 2021-23
  • Porsche 971.2 Panamera 4 E-Hybrid Sport Turismo 2.9L V6 2021-23
  • Porsche 971.2 Panamera 4S E-Hybrid 2.9L V6 2021-23
  • Porsche 971.2 Panamera 4S E-Hybrid Sport Turismo 2.9L V6 2021-23
  • Porsche 971.2 Panamera GTS 4.0L V8 2021-23
  • Porsche 971.2 Panamera GTS Sport Turismo 4.0L V8 2021-23
  • Porsche 971.2 Panamera Turbo S 4.0L V8 2021-23
  • Porsche 971.2 Panamera Turbo S Sport Turismo 4.0L V8 2021-23
  • Porsche 971.2 Panamera Turbo S E-Hybrid 4.0L V8 2021-23
  • Porsche 971.2 Panamera Turbo S E-Hybrid Sport Turismo 4.0L V8 2021-23
  • Porsche 976 Panamera V6 2.9L 2023>>
  • Porsche 976 Panamera 4 V6 2.9L 2023>>
  • Porsche 976 Panamera 4 E-Hybrid V6 2.9L 2023>>
  • Porsche 976 Panamera 4S E-Hybrid V6 2.9L 2023>>
  • Porsche 976 Panamera GTS V8 4.0L 2023>>
  • Porsche 976 Panamera Turbo E-Hybrid V8 4.0L 2023>>
  • Porsche 976 Panamera Turbo S E-Hybrid V8 4.0L 2023>>  


Diagram Ref No 6 And 7

What This Product Does:

  • Directs coolant flow between the radiator and engine cooling components.
  • Acts as a distribution junction, ensuring coolant is properly routed through the left-side cooling circuit.
  • Helps maintain stable engine operating temperatures by supporting efficient heat transfer.
  • Provides a secure, sealed connection between multiple coolant hoses or pipes under pressure.

Symptoms Of Wear Or Failure:
  • Cracks in the distributor housing or failed seals/O-rings can cause visible coolant seepage.
  • Leaks from the distributor can lead to gradual coolant loss, requiring frequent top-ups.
  • Improper coolant routing or coolant loss can reduce cooling efficiency and cause unstable temperature readings.
  • A noticeable coolant odor near the radiator/front engine area often indicates leakage.
  • Signs may include cracked plastic housing, damaged hose connection ports, degraded O-ring seals, corrosion (if applicable to fittings)
  • Low coolant or temperature warnings may appear if leakage becomes significant.
  • A faulty distributor can cause pressure imbalance in the cooling circuit.

Why Replacement Matters:
  • Prevents coolant leaks that can cause low coolant levels and pressure loss.
  • Maintains proper coolant distribution, ensuring balanced flow through the radiator and engine circuits.
  • Helps prevent engine overheating, which can lead to serious and costly engine damage.
  • Restores system sealing integrity, especially if O-rings or connection ports are worn.
  • Protects surrounding components, as leaking coolant can damage wiring, sensors, belts, and other engine bay parts.



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

9A7121438
9A712143800
9A712143810

The product you are viewing cross references to these numbers
Distributor For Coolant. Porsche 971.1 / 971.2 / 976 Panamera 2017>> - 9A712143800, 9A712143810
3
Distributor For Coolant. Porsche 971.1 / 971.2 / 976 Panamera 2017>>
9A7121438
Product Information
Product Information
Distributor For Coolant.
The Distributor for Coolant, is a OE MATCH coolant distribution tube designed for the left side of the engine cooling system on Porsche Panamera (971 and 976) models. This component routes and distributes coolant between the radiator and engine cooling circuits, ensuring proper coolant flow and efficient heat dissipation. It provides precise fitment, secure sealing, and durability under high-temperature and pressurised conditions. This coolant distributor helps maintain stable engine operating temperatures and reliable cooling system performance.  

Fits:
  • Porsche 971.1 Panamera V6 3.0L 2WD (330 Hp) 2017-20
  • Porsche 971.1 Panamera 4 V6 3.0L 4WD (330 Hp) 2017-20
  • Porsche 971.1 Panamera 4 V6 3.0L 4WD Executive 2017-20
  • Porsche 971.1 Panamera 4 3.0L Turbocharged V6 Sport Turismo 2017-20
  • Porsche 971.1 Panamera 4S V6 3.0L 4WD (440 Hp) 2017-20
  • Porsche 971.1 Panamera 4S V6 3.0L 4WD Executive 2017-20
  • Porsche 971.1 Panamera 4S 2.9L Twin-Turbo V6 Sport Turismo 2017-20
  • Porsche 971.1 Panamera 4S Diesel V8 4.0L 4WD (422 Hp) 2017-18
  • Porsche 971.1 Panamera 4S Diesel 4.0L Twin-Turbo V8 Sport Turismo 2017-18
  • Porsche 971.1 Panamera 4 E-Hybrid V6 2.9L 4WD 2017-20
  • Porsche 971.1 Panamera 4 E-Hybrid V6 2.9L 4WD Executive 2017-20
  • Porsche 971.1 Panamera 4 E-Hybrid 2.9L Twin-Turbo V6 Sport Turismo 2017-20
  • Porsche 971.1 Panamera Turbo V8 4.0L 4WD (550 Hp) 2017-20
  • Porsche 971.1 Panamera Turbo V8 4.0L 4WD Executive 2017-20
  • Porsche 971.1 Panamera Turbo 4.0L Twin-Turbo V8 Sport Turismo 2017-20
  • Porsche 971.1 Panamera Turbo S E-Hybrid V8 4.0L 4WD 2017-20
  • Porsche 971.1 Panamera Turbo S E-Hybrid V8 4.0L 4WD Executive 2017-20
  • Porsche 971.2 Panamera 2.9L V6 2021-23
  • Porsche 971.2 Panamera 4 2.9L V6 2021-23
  • Porsche 971.2 Panamera 4 Sport Turismo 2.9L V6 2021-23
  • Porsche 971.2 Panamera 4S 2.9L V6 2021-23
  • Porsche 971.2 Panamera 4S Sport Turismo 2.9L V6 2021-23
  • Porsche 971.2 Panamera 4 E-Hybrid 2.9L V6 2021-23
  • Porsche 971.2 Panamera 4 E-Hybrid Sport Turismo 2.9L V6 2021-23
  • Porsche 971.2 Panamera 4S E-Hybrid 2.9L V6 2021-23
  • Porsche 971.2 Panamera 4S E-Hybrid Sport Turismo 2.9L V6 2021-23
  • Porsche 971.2 Panamera GTS 4.0L V8 2021-23
  • Porsche 971.2 Panamera GTS Sport Turismo 4.0L V8 2021-23
  • Porsche 971.2 Panamera Turbo S 4.0L V8 2021-23
  • Porsche 971.2 Panamera Turbo S Sport Turismo 4.0L V8 2021-23
  • Porsche 971.2 Panamera Turbo S E-Hybrid 4.0L V8 2021-23
  • Porsche 971.2 Panamera Turbo S E-Hybrid Sport Turismo 4.0L V8 2021-23
  • Porsche 976 Panamera V6 2.9L 2023>>
  • Porsche 976 Panamera 4 V6 2.9L 2023>>
  • Porsche 976 Panamera 4 E-Hybrid V6 2.9L 2023>>
  • Porsche 976 Panamera 4S E-Hybrid V6 2.9L 2023>>
  • Porsche 976 Panamera GTS V8 4.0L 2023>>
  • Porsche 976 Panamera Turbo E-Hybrid V8 4.0L 2023>>
  • Porsche 976 Panamera Turbo S E-Hybrid V8 4.0L 2023>>  


Diagram Ref No 6 And 7

What This Product Does:

  • Directs coolant flow between the radiator and engine cooling components.
  • Acts as a distribution junction, ensuring coolant is properly routed through the left-side cooling circuit.
  • Helps maintain stable engine operating temperatures by supporting efficient heat transfer.
  • Provides a secure, sealed connection between multiple coolant hoses or pipes under pressure.

Symptoms Of Wear Or Failure:
  • Cracks in the distributor housing or failed seals/O-rings can cause visible coolant seepage.
  • Leaks from the distributor can lead to gradual coolant loss, requiring frequent top-ups.
  • Improper coolant routing or coolant loss can reduce cooling efficiency and cause unstable temperature readings.
  • A noticeable coolant odor near the radiator/front engine area often indicates leakage.
  • Signs may include cracked plastic housing, damaged hose connection ports, degraded O-ring seals, corrosion (if applicable to fittings)
  • Low coolant or temperature warnings may appear if leakage becomes significant.
  • A faulty distributor can cause pressure imbalance in the cooling circuit.

Why Replacement Matters:
  • Prevents coolant leaks that can cause low coolant levels and pressure loss.
  • Maintains proper coolant distribution, ensuring balanced flow through the radiator and engine circuits.
  • Helps prevent engine overheating, which can lead to serious and costly engine damage.
  • Restores system sealing integrity, especially if O-rings or connection ports are worn.
  • Protects surrounding components, as leaking coolant can damage wiring, sensors, belts, and other engine bay parts.



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

9A7121438
9A712143800
9A712143810

The product you are viewing cross references to these numbers
DISPLAYING 1 to 2 (of 2 products)
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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