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Heater hoses & pipes

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DISPLAYING 1 to 16 (of 25 products)
1 2
Special Order item
93021124600
Product Information
Product Information
Additional Blower Hose.

porsche

Fits:
Porsche 964 1989-94 all models

Click 'Zoom in' for large parts diagram.
Diagram ref no 29

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93021124600
93021124600

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Special Order item
96457225
Product Information
Product Information
Air duct.

porsche

Fits:
Porsche 964 1989-94
Porsche 993 1995-98

Click 'Zoom in' for large parts diagram.
Diagram ref no 1

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96457225
96457225101
96457225201
96457225100
96457225200

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Special Order item
96457252
Product Information
Product Information
Air hose to heater box, 

porsche

Fits:
Porsche 964 - 1989 to 1994

Click 'Zoom in' for large parts diagram.
Diagram ref no 11




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96457252
96457252701
96457252801

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Special Order item
91157311500
Product Information
Product Information
Air tube for ventilation. LW 61 x 420.

porsche

Fits:
Porsche 964 1989-94 RHD cars

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

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91157311500
91157311500

The product you are viewing cross references to these numbers
Special Order item
99978203790
Product Information
Product Information
Connecting Hose. LEFT.
335 mm.

porsche

Fits:
Porsche 964 (965) Turbo 1989-94

Click "Zoom In" for large parts diagram.
Diagram ref no 5
Special Order item
99978203990
Product Information
Product Information
Connecting Hose RIGHT.
270 mm

porsche

Fits:
Porsche 964 (965) Turbo 1989-94

Click "Zoom In" for large parts diagram.
Diagram ref no 5
Special Offer
93021119601/1
Product Information
Product Information
Engine to Heat Exchanger Hose 130mm x 60mm. LEFT.

oematch

Fits:
Porsche 911 TURBO 1978-89
Porsche 911 (930) Turbo 1975-77
Porsche 964 TURBO 3.3L 1991-92

This product supersedes Porsche's old part numbers:
- 93021119600

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Diagram ref no. 19

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93021119601
93021119601
93021119600

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Special Order item
93021119601
Product Information
Product Information
Engine to Heat Exchanger Hose on the LEFT.
porsche

Fits:
Porsche 911 TURBO 1978-89
Porsche 911 (930) Turbo 1975-77
Porsche 964 TURBO 3.3L 1991-92

This product supersedes Porsche's old part numbers:
- 93021119600

Click 'Zoom in' for large parts diagram.
Diagram ref no. 19
Special Order item
99951250502
Product Information
Product Information
Heater channel hose screw clamp. 102 x 12.

porsche

Fits:
Porsche 964 1989-94
Porsche 993 1995-98

Click 'Zoom in' for large parts diagram.
Diagram ref no 8


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99951250502
99951250502

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Special Offer
CLAMP-KIT157S
Product Information
Product Information
Stainless steel clamp kit for heater hoses #DO88-KIT157.

doeighteight

To Fit:
Porsche 911 (964 Turbo) 3.3 Turbo 1990-1994

Kit of 14 clamps

The kit contains all necessary hose clamps to install the specified hose kit. The included clamps are a high quality standard design type in all stainless steel (W4 class) with a stamped band to minimise impact on hose surface.

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

CLAMP-KIT157S
93021123801
93021123801
93021119600
93021124600
99978203790
99978203790
93021123900

The product you are viewing cross references to these numbers
Special Order item
93021123601
Product Information
Product Information
Heater pipe additional air blower. 

Fits:
Porsche 964 turbo 3.3ltr - 1991 to 1993
Porsche 964 turbo S 3.6ltr - 1991 to 1993

Diagram ref no 36

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93021123601
93021123601
93021123600

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93021123601/1
Product Information
Product Information
Heater pipe additional air blower. 

Fits:
Porsche 964 turbo 3.3ltr - 1991 to 1993
Porsche 964 turbo S 3.6ltr - 1991 to 1993

Diagram ref no 36

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93021123601
93021123601
93021123600

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Special Order item
93021113400
Product Information
Product Information
Heating Tube Adapter.


Fits:
Porsche 964 Turbo 3.3L 1991-92 (M30.69)
Porsche 964 Turbo 3.6L 1993-94 (M64.50)

Diagram ref no. 20

Price is for EACH.



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93021113400
93021113400

The product you are viewing cross references to these numbers
Special Offer
93021113400/1
Product Information
Product Information
Heating Tube Adapter.

Sold each - 2 required per car

Fits:
Porsche 964 turbo 3.3ltr - 1991 to 1992 (M30.69)
Porsche 964 turbo S 3.6ltr - 1993 to 1994 (M64.50)

Diagram ref no. 20



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93021113400
93021113400

The product you are viewing cross references to these numbers
Special Order item
93021113700
Product Information
Product Information
Heating Tube.
porsche

Fits:
Porsche 964 Turbo 3.3L 1991-92 (M30.69)
Porsche 964 Turbo 3.6L 1993-94 (M64.50)

Click 'Zoom in' for large parts diagram.
Diagram ref no. 28

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93021113700
93021113700

The product you are viewing cross references to these numbers
Special Order item
99951255300
Product Information
Product Information
Hose Clamp. 80 x 12.

porsche

Fits:
Porsche 964 1989-94 all models

Diagram ref no 4

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99951255300
99951255300

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DISPLAYING 1 to 16 (of 25 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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