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Product Information
Product Information
Heater Hose, Supply, On Water Pump.

The Heater Hose, Supply, On Water Pump is a OE MATCH heater hose designed to carry hot engine coolant from the water pump into the heater circuit. This hose plays a vital role in the vehicle’s heating system by supplying the heater core with warmed coolant, allowing the HVAC system to deliver consistent cabin heat. It offers precise fitment, high resistance to heat and pressure, and long-term durability for Porsche Panamera (970) models.

Fits:

  • Porsche 970.1 Panamera V6 3.6L 2WD 2009-13
  • Porsche 970.1 Panamera 4 V6 3.6L 4WD 2009-13
  • Porsche 970.1 Panamera S V8 4.8L 2009-13
  • Porsche 970.1 Panamera 4S V8 4.8L 2009-13
  • Porsche 970.1 Panamera GTS V8 4.8L 2011-13
  • Porsche 970.1 Panamera Turbo V8 4.8L 2009-13
  • Porsche 970.1 Panamera Turbo S V8 4.8L 2009-13
  • Porsche 970.1 Panamera Diesel V6 3.0L 2011-13
  • Porsche 970.1 Panamera S Hybrid V6 3.0L 2011-13
  • Porsche 970.2 Panamera V6 3.6L 2WD (310Hp) 2014-16
  • Porsche 970.2 Panamera 4 V6 3.6L 4WD (310Hp) 2014-16
  • Porsche 970.2 Panamera S V6 Turbo 3.0L 2WD (420Hp) 2014-16
  • Porsche 970.2 Panamera S V6 Turbo 3.0L 2WD Executive 2014-16
  • Porsche 970.2 Panamera 4S V6 Turbo 3.0L 4WD (420Hp) 2014-16
  • Porsche 970.2 Panamera 4S V6 Turbo 3.0L 4WD Executive 2014-16
  • Porsche 970.2 Panamera GTS V8 4.8L 4WD (440Hp) 2014-16
  • Porsche 970.2 Panamera Turbo V8 4.8L (520Hp) 2014-16
  • Porsche 970.2 Panamera Turbo V8 Executive 2014-16
  • Porsche 970.2 Panamera Turbo S V8 4.8L 2014-16
  • Porsche 970.2 Panamera Diesel V6 3.0L (250Hp) 2014-16
  • Porsche 970.2 Panamera S E-Hybrid V6 3.0L (416Hp) 2014-16

Diagram Ref No 4

What This Product Does:
  • Supplies hot engine coolant from the water pump area to the heater core circuit.
  • Enables cabin heating, since the heater core uses hot coolant to warm air blown into the interior.
  • Maintains proper coolant circulation through the heater system for consistent heating performance.
  • Provides a flexible connection to handle vibration, engine movement, and thermal expansion.

Symptoms Of Wear Or Failure:
  • Coolant may seep or drip from the hose itself or from the connection points, often leaving visible residue.
  • A failing heater supply hose can cause gradual coolant loss, requiring frequent top-ups.
  • If hot coolant cannot reach the heater core, the heater may blow lukewarm or cold air even when the engine is warm.
  • A noticeable coolant smell in the engine bay or inside the cabin often indicates a leak in the heater circuit.
  • Common signs include cracking or splitting, swelling or bulging, hardened or brittle rubber, wet staining around the hose.
  • Coolant loss from the heater circuit can contribute to overheating or unstable engine temperatures.
  • Low coolant or temperature warnings may appear if the hose begins to fail.

Why Replacement Matters:
  • Prevents coolant leaks that can cause low coolant levels and loss of system pressure.
  • Maintains reliable cabin heating, since the heater core depends on a steady supply of hot coolant.
  • Helps avoid engine overheating, because coolant loss in the heater circuit affects overall cooling system performance.
  • Restores proper coolant circulation, ensuring stable engine temperature control.
  • Protects surrounding components, as leaking coolant can damage hoses, sensors, wiring, and nearby engine parts.



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