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Porsche > Panamera 971 MK2 (2021-2023) > 971.2 Panamera Turbo S Sport Turismo 4.0L V8 2021-23 > Heating / Air Conditioning >

Heater hoses & pipes

Heater hoses & pipes

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DISPLAYING 1 to 2 (of 2 products)
Heating Hose. Porsche 971.1 / 971.2 Panamera 2017-24 - PAE819314H, 9A781931400, 9A781931401, 9A781931402
2
Heating Hose. Porsche 971.1 / 971.2 Panamera 2017-24
Special Order item
PAE819314H
Product Information
Product Information
Heating Hose.
The Heating Hose is a genuine Porsche OEM heater coolant hose designed to carry hot engine coolant through the HVAC heating circuit. This hose supports proper coolant circulation to the heater core and heater pump, ensuring consistent cabin heating performance and maintaining stable cooling system operation. Manufactured to Porsche specifications, it offers precise fitment, excellent resistance to heat and pressure, and long-term durability for Porsche Panamera (971) models.

Fits:
  • 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 971.2 Panamera 2.9L V6 2021-23
  • Porsche 971.2Panamera 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 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 
 
Diagram Ref No 2

What This Product Does:

  • Transports hot engine coolant through the heater circuit.
  • Supplies coolant to the heater core or heater pump, enabling cabin heating.
  • Helps maintain continuous coolant circulation within the cooling system.
  • Provides a flexible, heat-resistant connection that accommodates engine movement and thermal expansion.

Symptoms Of Wear Failure:
  • Coolant may seep or drip from cracks in the hose or at the connection points, leaving wet stains or dried residue.
  • A leaking heater hose can cause gradual coolant loss, requiring frequent topping up.
  • If coolant flow to the heater core is reduced, the heater may blow lukewarm or cold air.
  • Coolant loss from the heater circuit can reduce cooling efficiency and contribute to overheating.
  • A sweet odor in the engine bay or cabin is a common sign of a heater hose leak.
  • Signs include cracking or splitting, swelling or bulging, hardened or brittle rubber, soft spots, coolant staining.
  • Low coolant warnings may appear if the hose begins to fail.

Why Replacement Matters:
  • Prevents coolant leaks that can lead to low coolant levels and loss of system pressure.
  • Maintains reliable cabin heating, since the heater core depends on proper coolant flow.
  • Helps avoid engine overheating, as coolant loss reduces cooling system efficiency.
  • Restores proper coolant circulation, ensuring stable engine operating temperatures.
  • Protects surrounding components, because leaking coolant can damage sensors, wiring, and other engine bay parts.



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

PAE819314H
PAE819314H
9A781931400
9A781931401
9A781931402

The product you are viewing cross references to these numbers
Heating Hose. Porsche 971.1 / 971.2 Panamera 2017-24 - PAE819314H, 9A781931400, 9A781931401, 9A781931402
2
Heating Hose. Porsche 971.1 / 971.2 Panamera 2017-24
PAE819314H/1
Product Information
Product Information
Heating Hose.
The Heating Hose is a OE MATCH heater coolant hose designed to carry hot engine coolant through the HVAC heating circuit. This hose supports proper coolant circulation to the heater core and heater pump, ensuring consistent cabin heating performance and maintaining stable cooling system operation. It offers precise fitment, excellent resistance to heat and pressure, and long-term durability for Porsche Panamera (971) models.

Fits:
  • 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 971.2 Panamera 2.9L V6 2021-23
  • Porsche 971.2Panamera 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 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 
 
Diagram Ref No 2

What This Product Does:

  • Transports hot engine coolant through the heater circuit.
  • Supplies coolant to the heater core or heater pump, enabling cabin heating.
  • Helps maintain continuous coolant circulation within the cooling system.
  • Provides a flexible, heat-resistant connection that accommodates engine movement and thermal expansion.

Symptoms Of Wear Failure:
  • Coolant may seep or drip from cracks in the hose or at the connection points, leaving wet stains or dried residue.
  • A leaking heater hose can cause gradual coolant loss, requiring frequent topping up.
  • If coolant flow to the heater core is reduced, the heater may blow lukewarm or cold air.
  • Coolant loss from the heater circuit can reduce cooling efficiency and contribute to overheating.
  • A sweet odor in the engine bay or cabin is a common sign of a heater hose leak.
  • Signs include cracking or splitting, swelling or bulging, hardened or brittle rubber, soft spots, coolant staining.
  • Low coolant warnings may appear if the hose begins to fail.

Why Replacement Matters:
  • Prevents coolant leaks that can lead to low coolant levels and loss of system pressure.
  • Maintains reliable cabin heating, since the heater core depends on proper coolant flow.
  • Helps avoid engine overheating, as coolant loss reduces cooling system efficiency.
  • Restores proper coolant circulation, ensuring stable engine operating temperatures.
  • Protects surrounding components, because leaking coolant can damage sensors, wiring, and other engine bay parts.



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

PAE819314H
PAE819314H
9A781931400
9A781931401
9A781931402

The product you are viewing cross references to these numbers
DISPLAYING 1 to 2 (of 2 products)
About Heater hoses & pipes

Porsche Heater Hoses & Pipes | Reliable Coolant Flow & Cabin Heating Efficiency

Heater hoses and pipes are essential components in your Porsche’s heating and cooling system. They carry heated coolant from the engine to the heater core, enabling warm air circulation throughout the cabin. Without properly functioning hoses and pipes, the heating system cannot deliver consistent temperature control or maintain efficient engine cooling.

At Design911, we supply premium heater hoses and coolant pipes that meet or exceed original engineering standards. Constructed from high-quality rubber, aluminium, or reinforced composite materials, these components ensure leak-free performance, excellent heat resistance, and long-term durability.

Whether you’re restoring a classic 911 or maintaining a modern Porsche with advanced climate control systems, our heater hoses and pipes provide the precision, fitment, and performance required for dependable heating and cooling.

What Do Heater Hoses & Pipes Do?

Heater hoses and pipes form the circulation path that carries hot coolant from the engine to the heater core, allowing the HVAC system to provide warm air inside the cabin.

Core Functions:

  • Transfer heated coolant to the heater core for cabin warming.
  • Maintain proper coolant flow between engine and heating system.
  • Regulate temperature and prevent air pockets in the system.
  • Ensure efficient heat exchange for passenger comfort.
  • Protect against coolant loss and overheating.

A properly functioning set of hoses and pipes is critical for both engine cooling performance and interior heating efficiency.

Why Do Heater Hoses & Pipes Fail or Degrade?

These components endure constant heat, pressure, and vibration. Over time, material fatigue and corrosion can lead to leaks or blockages.

Common Causes of Failure Include:

  • Age-related cracking, swelling, or brittleness of rubber hoses.
  • Corrosion or pinhole leaks in metal pipes.
  • Coolant contamination or chemical degradation.
  • Loose or damaged hose clamps causing leaks.
  • Blockages from scale or debris restricting coolant flow.

When heater hoses or pipes fail, symptoms include coolant leaks, weak cabin heat, overheating, or a sweet smell of antifreeze inside the cabin.

Why Replace Your Porsche Heater Hoses & Pipes?

Replacing worn or damaged heater hoses and pipes restores proper coolant circulation, prevents leaks, and ensures stable heating and engine temperature control.

Key Benefits:

  • Restores efficient coolant flow and cabin heating performance.
  • Prevents leaks, overheating, and engine damage.
  • Improves reliability and system pressure integrity.
  • Resistant to heat, pressure, and corrosion for long lifespan.
  • Direct-fit replacements for Porsche 911, Cayman, Boxster, Panamera, Macan, and Cayenne models.
  • Ideal for maintenance, restorations, or performance upgrades.

It’s recommended to replace heater hoses and clamps during coolant service intervals to maintain maximum system reliability.

Highlights

  • Precision-engineered Porsche heater hoses and coolant pipes.
  • Constructed from high-quality, heat-resistant materials.
  • Direct-fit replacements for Porsche models old and new.
  • Designed for long-term resistance to pressure and corrosion.
  • Ensures reliable heating and engine cooling performance.
  • Ideal for restoration, servicing, and preventative maintenance.       

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