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Heater hoses & pipes

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DISPLAYING 1 to 16 (of 32 products)
1 2
Special Offer
91121152201/8
Product Information
Product Information
Blower Hose in engine bay.
Appox 1 meter long 60mm Diameter

oematch

Fits:
Porsche 911 1975-83
Also used on Pre >>1973 911's in the heater system

Click 'Zoom in' for large parts diagram.
Diagram ref no 13

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91121152201
91121152201
91121152200

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91121152201
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Hot air hose - Engine compartment blower to heat exchanger. 60 X 1110 mm.

porsche

Fits:
Porsche 911 1975-83
Also used on Pre >>1973 911's in the heater system

Click 'Zoom in' for large parts diagram.
Diagram ref no 13

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91121152201
91121152200
91121152201

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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

Click 'Zoom in' for large parts diagram.
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

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

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90121105
90121105121
90121105221
90121105122
90121105222

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90121105
Product Information
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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90157204
Product Information
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Defrosting nozzle with rubber ring and clamp, REAR.

Fits:
Porsche 911 2.0 01/63-07/67
Porsche 912 1.6 01/65-07/67

Diagram ref no 22 and 23

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90157204
90157204122
90157204222
99970204050
99951300340
99951300240

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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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91121129700/8
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Exhaust gasket for heater flap.
Fits: Left or right side

Fits:
Porsche 911/912 1965-89
Porsche 930 (911) Turbo 1975-89

Diagram ref no 7

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91121129700
91121129700

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93021162201/2
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Product Information
Heater flap hose. Heat exchanger to heater control Valve; 330 mm x 60 mm; Original dark brown paper / aluminium

oematch

Fits:
Porsche 911 1965-89
Porsche 912 1965-69
Porsche 930 Turbo 1978-79
Porsche 914 1970-76

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93021162201
93021162201
91457215410
93021162201B

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93021162201
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Heater Flap Hose. Heat exchanger to heat control valve hose. Heat-resistant material. 330mm x 60mm can be cut to fit where smaller lengths are needed.

Fits:
Porsche 911 1965-89
Porsche 930 Turbo

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93021162201
93021162201
91457215410

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93021162201/1
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Heater flap hose. Silicone hose for connecting heat control box to heat exchanger, Ø60x330 mm.

Fits:
Porsche 911 Carrera 3.2L 08/83-07/89
Porsche 911 S (mech. injection) 2.4L 08/71-07/73
Porsche 911 SC Turbo 3.3L 08/78-07/89
Porsche 911 SC/911 Carrera 2.7-3.0L 08/75-07/83
Porsche 911 T/E/S (not mech.injection) 2.0-2.4L 01/63-07/73
Porsche 911/911 S/911 Carrera 2.7L 08/73-07/75
Porsche 914 1.7-2.0L 01/69-02/76

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93021162201
93021162201
91457215410

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99978200491
Product Information
Product Information
Heater hose Webasto additional heater - 50mm diameter
Sold each, fits left and right

porsche

Fits:
Porsche 911 - 1965 to 1977

Click 'Zoom in' for large parts diagram.
Diagram ref no 4 and 5


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99978200491
99978200491
99978200490
90157264800
90157264700

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DISPLAYING 1 to 16 (of 32 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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