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Porsche > 992 (911) MK1 2019-2024 > 992.1 Targa 4 3.0L 2020-24 > Engine Cooling > Coolant Hoses and Pipes > Engine Block Hoses >

Heating Hose. Porsche 971.1 / 971.2 Panamera 2017-24  ❭  9A781931600

Heating Hose. Porsche 971.1 / 971.2 Panamera 2017-24 - 9A781931600
2
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9A781931600
Product Information
Product Information
Heating Hose.

Ensure consistent cabin warmth and efficient engine heat transfer with the Heating Hose. This OEM-quality hose is designed to transport heated coolant from the engine to the heater core, enabling proper HVAC performance and reliable interior heating.

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 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 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 1

What This Product Does:

  • Delivers heated coolant to the heater core
  • Returns coolant back to the engine for continuous circulation
  • Enables proper cabin heating performance
  • Supports overall cooling system efficiency

Symptoms Of Wear Or Failure:
  • Coolant leaks near the heater core or engine bay
  • Sweet coolant smell inside or outside the vehicle
  • Damp carpet or moisture inside the cabin (in some cases)
  • Heater blowing cold or inconsistent warm air
  • Low coolant warning light or frequent coolant top-offs
  • Engine running hotter than normal
  • Cracks, bulging, or swelling along the hose
  • Soft, brittle, or spongy rubber texture
  • Coolant residue around hose fittings or clamps

Why Replacement Matters:
  • Replacing a worn or damaged heating hose is important because it plays a critical role in both the cooling system and the cabin heating system. A failing hose can leak coolant, reducing circulation and causing the engine to run hotter than normal.
  • If the hose ruptures or leaks severely, it may lead to coolant loss, overheating, and costly engine damage. It can also cause poor heater performance and may even allow coolant to enter the cabin area.
  • Installing a new heating hose helps restore proper coolant flow, improves heating efficiency, prevents leaks, and protects the engine from overheating.



Related reference numbers
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9A781931600
9A781931600

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Engine Coolant Inlet Flange Drain Plug. Porsche 981 / 982 / 987.2 / 991.1 / 991.2 / 992.1 / 992.2 / 997.2
Special Order item
0PB121099
Product Information
Product Information
Engine Coolant Inlet Flange Drain Plug.
Sold Each.
x3 Required Per Car.

Fits:
Porsche 981 Boxster 2012>>2016
Porsche 981 Cayman 2014>>2016
Porsche 981 Boxster Spyder 2016>>2016
Porsche 982 Boxster GTS (718) 4.0L 2017>>
Porsche 982 Cayman GTS (718) 4.0L 2017>>
Porsche 982 Boxster Spyder (718) 2019>>
Porsche 987.2 Boxster MKII 2009>>2012
Porsche 987.2 Cayman MKII 2009>>2012
Porsche 991.1 Carrera MKI 2012>>2016
Porsche 991.2 Carrera MKII 2017>>2019
Porsche 991 Turbo / Turbo S / GT2 RS MKI / MKII 2014>>2020
Porsche 992.1 Carrera MKI 2019>>2024
Porsche 992.2 Carrera 2 3.0L MKII 2024>>
Porsche 992.1 Turbo / Turbo S MKI 2020>>
Porsche 997.2 Carrera MKII 2009>>2012
Porsche 997.2 Turbo / GT2 RS MKII 2010>>2013
Porsche 981 Cayman GT4 2016>>2016
Porsche 982 Cayman GT4 (718) 2019>>

Diagram Ref No 16

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

0PB121099
0PB121099
9A110654600

The product you are viewing cross references to these numbers