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Heater hoses & pipes

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DISPLAYING 1 to 16 (of 40 products)
1 2 3
Special Order item
91157318100
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Air Distributor Connector Lower Piece.

porsche

Fits:
Porsche 911 1978-85 LHD Cars

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Diagram ref no 4

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91157318100
91157318100

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91157317300
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Air Distributor Housing Gasket.

porsche

Fits:
Porsche 911 1978-89 LHD Cars

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Diagram ref no 3

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91157317300
91157317300

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91157108500
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Air duct for LHD cars.

porsche

Fits:
For LHD cars
Porsche 911 1977-85
Porsche 911 Turbo 1977

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Diagram ref no 15

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91157108500
91157108500

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Special Order item
91157232500
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Air hose for heating system (62x150 mm)

porsche

Fits:
Porsche 911 Carrera (1986 - 1987)

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Diagram ref no 28

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91157232500
91157232500

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91157311700
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Air tube for cooling duct, Left.

porsche

Fits:
Porsche 911 1984-86

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Diagram ref no 2

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91157311700
91157311700

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99970307740::1
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Blanking plug for heater blower pipe.

porsche

Fits:
Porsche 911 1984-89

Diagram ref no 14

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99970307740
99970307740

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99951234901
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Clamp for Heater Hose - 330 mm

oematch

Fits:
Porsche 911 1973-89

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Diagram ref No 12

Price is for each clamp.

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99951234901
99951234901
99951212402
99951212802
99951224902
99951225102
99951225102
N0245052

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Special Offer
90121105
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Clamp for heater hose top & holder for heater cable. Made out of Titanium

rohler

Fits:
Porsche 911 1965-86
Porsche 911 Turbo 3.0L / 3.3L 1975-86

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Diagram ref no 2

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90121105
90121105121
90121105221
90121105122
90121105222

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90121105
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Clamp for heater hose top & holder for heater cable.
Left or right side

porsche

Fits:
Porsche 911 1965-86
Porsche 911 Turbo 3.0L / 3.3L 1975-86

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Diagram ref no 2

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90121105
90121105121
90121105221
90121105122
90121105222

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90121105
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Product Information
Clamp for heater hose top & holder for heater cable.

oematch

Fits:
Porsche 911 1965-86
Porsche 911 Turbo 3.0L / 3.3L 1975-86

Click 'Zoom in' for large parts diagram.
Diagram ref no 2

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90121105
90121105121
90121105221
90121105122
90121105222

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90157291301
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Product Information
Climate control hose sealing ring.

Fits:
Porsche 911 1965-89 all models

Diagram ref no 34

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90157291301
90157291301

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90157291301/1
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Climate control hose sealing ring.

Fits:
Porsche 911 1965-89 all models

Diagram ref no 34

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90157291301
9800020
90157291301

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90157132632/1
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Drain hose rubber.

Fits:
Porsche 911 1968-89

Diagram ref no 19

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90157132632
90157132632

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90121119401
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Engine to heat exchanger hose 380mm x 60mm.

Fits:
Porsche 912
Porsche 911 1965-73
Engine to Heat Exchanger on the Left or Right

Fits:
Porsche 930 Turbo 1975-89
Porsche 911SC
Porsche 911 3.2L
Engine to Heat Exchanger on the right

This product supersedes Porsche's old part numbers:
- 90121119400

Diagram ref no. 20

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90121119401
90121119401
90121119400
1623500100

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90121119401/1
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Product Information
Engine to heat exchanger hose, 380mm x 60mm.

Fits:
Porsche 912
Porsche 911 1965-73
Engine to Heat Exchanger on the Left or Right

Fits:
Porsche 930 Turbo 1975-89
Porsche 911SC
Porsche 911 3.2L
Engine to Heat Exchanger on the right

This product supersedes Porsche's old part numbers:
- 90121119400

Diagram ref no. 20

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90121119401
90121119401
90121119400

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91157320400
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Footwell Blower Hose - 40mm x 1 meter long

porsche

Fits:
Porsche 911 1974-85
Porsche 911 Turbo 3.0L, 3.3L 1975-85

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91157320400
91157320400

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DISPLAYING 1 to 16 (of 40 products)
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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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