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Porsche > 911 & 912 (1965-1989) > 911 1984-1986 3.2L > Heating / Air Conditioning >

Heater hoses & pipes

Heater hoses & pipes

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DISPLAYING 1 to 16 (of 43 products)
1 2 3
Clamps for heater hose top & holder for heater cable Titanium with bolts. Porsche 911 1965-86 Ref 90121105122, 90121105222, - 90121105121, 90121105221, 90121105122, 90121105222
2
Clamps for heater hose top & holder for heater cable Titanium with bolts. Porsche 911 1965-86 Ref 90121105122, 90121105222,
HEATERCLAMP911T
Product Information
Product Information
Titanium  Clamps for heater hose top & holder for heater cable with bolts.  SET OF 2 


oematch

Contains: 
1 x Titanium Clamp for heater Left 90121105122 
1 x Titanium Clamp for heater Right 90121105222 
2 x M6 Hex. Head Bolts 90037803001 
2 x Locking nuts N0120064


Fits:
Porsche 911 1965-1968 2.0L / 912 SWB (F) 
Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F) 
Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera 
Porsche 911 1978-1983 3.0L / SC Porsche 911 1984-1986 3.2L 
Porsche 911 1975-1977 3.0L Turbo (930) 
Porsche 911 1978-1989 3.3L Turbo (930)


Click 'Zoom in' for large parts diagram.
Diagram ref no 2 , 3 & 4 



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Related, superseded, cross reference or alternative numbers for comparison.

HEATERCLAMP911T
90121105121
90121105221
90121105122
90121105222

The product you are viewing cross references to these numbers
Clamps for heater hose top & holder for heater cable with bolts. Porsche 911 1965-86 Ref 90121105122, 90121105222, - 90121105121, 90121105221, 90121105122, 90121105222
2
Clamps for heater hose top & holder for heater cable with bolts. Porsche 911 1965-86 Ref 90121105122, 90121105222,
HEATERCLAMP911
Product Information
Product Information
Clamps for heater hose top & holder for heater cable with bolts.  SET OF 2 


oematch

Contains: 
1 x Clamp for heater Left 90121105122 
1 x Clamp for heater Right 90121105222 
2 x M6 Hex. Head Bolts 90037803001 
2 x Locking nuts N0120064


Fits:
Porsche 911 1965-1968 2.0L / 912 SWB (F) 
Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F) 
Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera 
Porsche 911 1978-1983 3.0L / SC Porsche 911 1984-1986 3.2L 
Porsche 911 1975-1977 3.0L Turbo (930) 
Porsche 911 1978-1989 3.3L Turbo (930)


Click 'Zoom in' for large parts diagram.
Diagram ref no 2 , 3 & 4 



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

HEATERCLAMP911
90121105121
90121105221
90121105122
90121105222

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Air Distributor Connector Lower Piece. Porsche 911 78-85 - 91157318100
4
Air Distributor Connector Lower Piece. Porsche 911 78-85
Special Order item
91157318100
Product Information
Product Information
Air Distributor Connector Lower Piece.

porsche

Fits:
Porsche 911 1978-85 LHD Cars

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

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91157318100
91157318100

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Air Distributor Housing Gasket. Porsche 911 78-89 - 91157317300
2
Air Distributor Housing Gasket. Porsche 911 78-89
Special Order item
91157317300
Product Information
Product Information
Air Distributor Housing Gasket.

porsche

Fits:
Porsche 911 1978-89 LHD Cars

Click 'Zoom in' for large parts diagram.
Diagram ref no 3

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91157317300
91157317300

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Air duct. Porsche 911 1977-85 LHD cars - 91157108500
4
Air duct. Porsche 911 1977-85 LHD cars
Special Order item
91157108500
Product Information
Product Information
Air duct for LHD cars.

porsche

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

Click 'Zoom in' for large parts diagram.
Diagram ref no 15

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91157108500
91157108500

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Air hose for heating system. Porsche 911 86-87 - 91157232500
2
Air hose for heating system. Porsche 911 86-87
Special Order item
91157232500
Product Information
Product Information
Air hose for heating system (62x150 mm)

porsche

Fits:
Porsche 911 Carrera (1986 - 1987)

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

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91157232500
91157232500

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Air tube for cooling duct, Left. Porsche 911 1984-86 - 91157311700
4
Air tube for cooling duct, Left. Porsche 911 1984-86
Special Order item
91157311700
Product Information
Product Information
Air tube for cooling duct, Left.

porsche

Fits:
Porsche 911 1984-86

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

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91157311700
91157311700

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Blanking plug for heater blower pipe. Porsche 911 1984-89 - 99970307740
2
Blanking plug for heater blower pipe. Porsche 911 1984-89
Special Order item
99970307740::1
Product Information
Product Information
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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Clamp for Heater Hose Porsche 911 1973>> - 99951234901, 99951212402, 99951212802, 99951224902, 99951225102, 99951225102, N0245052
3
Clamp for Heater Hose Porsche 911 1973>>
99951234901
Product Information
Product Information
Clamp for Heater Hose - 330 mm

oematch

Fits:
Porsche 911 1973-89

Click picture for large parts diagram.
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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Clamp for heater hose top & holder for heater cable in titanium. Porsche 911 1965-86 - 90121105121, 90121105221, 90121105122, 90121105222 - 1623550170, 1623550180
4
Clamp for heater hose top & holder for heater cable in titanium. Porsche 911 1965-86
90121105
Product Information
Product Information
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

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

90121105
90121105121
90121105221
90121105122
90121105222

The product you are viewing cross references to these numbers
Clamp for heater hose top & holder for heater cable. Porsche 911 1965-86 - 90121105121, 90121105221, 90121105122, 90121105222
3
Clamp for heater hose top & holder for heater cable. Porsche 911 1965-86
Special Order item
90121105
Product Information
Product Information
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

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

90121105
90121105121
90121105221
90121105122
90121105222

The product you are viewing cross references to these numbers
Clamp for heater hose top & holder for heater cable. Porsche 911 1965-86 - 90121105121, 90121105221, 90121105122, 90121105222
3
Clamp for heater hose top & holder for heater cable. Porsche 911 1965-86
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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Climate control hose sealing ring. Porsche 911 1965-89 - 90157291301 - 9800020
2
Climate control hose sealing ring. Porsche 911 1965-89
90157291301/1
Product Information
Product Information
Climate control hose sealing ring.
Rubber sealing ring / gasket used in the HVAC/heater/ventilation system of classic 911 / 912 cars. Its sealing points where heater/vent hoses pass through body or bulkhead. Ideal when refurbishing HVAC ducts, replacing heater hoses, restoring classic 911/912 ventilation and heat systems.
Sold each. 2 required per vehicle.

Fits:
Porsche 911 1965 - 1989 all models

Diagram ref no 18

Because over decades the original sealing rings often become brittle, hard, compressed or cracked (due to heat cycles, age, vibration, exposure to cabin air, moisture and dust), they lose their ability to seal properly.

This can lead to:
• Unwanted air leaks or drafts into cabin
• Water or dust ingress into the interior or into heater ducts
• Poor heating or ventilation performance
• Increased cabin noise, wind-noise or fumes entering cabin (especially on vehicles with engine-bay to cabin vents).

Replacing with a correct-spec sealing ring ensures a tight, flexible seal that restores proper HVAC function, occupant comfort, and helps preserve the integrity of the car’s interior and ventilation system.

Related reference numbers
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90157291301
90157291301

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Climate control hose sealing ring. Porsche 911 65-89 - 90157291301
2
Climate control hose sealing ring. Porsche 911 65-89
Special Order item
90157291301
Product Information
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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Distribution Y-Piece Vacuum Hose. Porsche 911 / 964 / 924S / 944 / 968 / 928 - 92857372702
3
Distribution Y-Piece Vacuum Hose. Porsche 911 / 964 / 924S / 944 / 968 / 928
Special Order item
92857372702
Product Information
Product Information

Vacuum Hose Distribution Y-Piece – 4mm Vacuum Line Splitter 
Sold each - used in various locations

High-quality vacuum hose distribution Y-piece designed for a wide range of Porsche models including 911, 964, 924S, 944, 968, and 928.

This Y-splitter allows a single vacuum source to be divided into two outlets, enabling efficient routing and connection of vacuum lines within the engine bay or HVAC system. It is specifically designed for vacuum hoses with a 4mm outer diameter, ensuring a secure and precise fit.

Fits:

  • Porsche 911 1984-1986 3.2L
  • Porsche 911 1987-1989 3.2L G50
  • Porsche 911 1978-1989 3.3L Turbo (930)
  • Porsche 964 (911) C2 1989-93
  • Porsche 964 (911) C4 1989-93
  • Porsche 964 (911) RS 3.6L 1991-93
  • Porsche 964 (911) RS 3.8L 1991-93
  • Porsche 964 (911) TURBO 3.3L 1991-93
  • Porsche 964 (911) TURBO 3.6L 1991-93
  • Porsche 924S 2.5L 1986-87
  • Porsche 924S 2.5L 1988
  • Porsche 944 2.5L 8V 1982-87
  • Porsche 944 2.7L 8V 1988-89
  • Porsche 944S 2.5L 16V 1987-88
  • Porsche 944S2 3.0L 16V 1989-91
  • Porsche 944 Turbo 2.5L 8V 1985-88
  • Porsche 944 Turbo 2.5L 8V 1989-91
  • Porsche 944 Turbo S 2.5L 8V 1988
  • Porsche 968 3.0L 1992-94
  • Porsche 968 Sport 3.0L 1994-95
  • Porsche 968 CS 3.0L 1993-95
  • Porsche 968 Turbo S 3.0L 1993-94
  • Porsche 928S2 4.7L 1984-86

Diagram ref no 4

Manufactured to OEM standards, this connector is ideal for maintaining or restoring vacuum system integrity across multiple Porsche applications.

Key Features

• Universal-style vacuum Y-piece connector
• Suitable for Porsche 911, 964, 924S, 944, 968, and 928
• Designed for 4mm outer diameter vacuum hoses
• Enables splitting of vacuum lines
• OEM-style fit and function
• Durable construction for long-term reliability

Function and Purpose

This Y-piece is a critical connector within the vacuum system.

It helps to:

• Split a single vacuum line into two outputs
• Maintain proper vacuum routing
• Ensure consistent vacuum pressure distribution
• Support engine and HVAC system operation

Why Replace Your Vacuum Connector

Over time, vacuum connectors can degrade due to heat and age.

Common issues include:

• Cracked or brittle plastic
• Vacuum leaks
• Poor hose connections
• Engine or HVAC system malfunctions

Replacing the Y-piece restores proper vacuum system function.

• Loose or unsecured temperature sensor
• Incorrect temperature readings
• HVAC system inconsistencies
• Broken or missing connector clips

Replacing the lock piece restores proper sensor stability and function.



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

92857372702
92857372702

The product you are viewing cross references to these numbers
Distribution Y-Piece Vacuum Hose. Porsche 911 / 964 / 924S / 944 / 968 / 928 - 92857372702 - PYVUD
3
Distribution Y-Piece Vacuum Hose. Porsche 911 / 964 / 924S / 944 / 968 / 928
92857372702/1
Product Information
Product Information

Vacuum Hose Distribution Y-Piece – 4mm Vacuum Line Splitter 
Sold each - used in various locations

High-quality vacuum hose distribution Y-piece designed for a wide range of Porsche models including 911, 964, 924S, 944, 968, and 928.

This Y-splitter allows a single vacuum source to be divided into two outlets, enabling efficient routing and connection of vacuum lines within the engine bay or HVAC system. It is specifically designed for vacuum hoses with a 4mm outer diameter, ensuring a secure and precise fit.

Fits:

  • Porsche 911 1984-1986 3.2L
  • Porsche 911 1987-1989 3.2L G50
  • Porsche 911 1978-1989 3.3L Turbo (930)
  • Porsche 964 (911) C2 1989-93
  • Porsche 964 (911) C4 1989-93
  • Porsche 964 (911) RS 3.6L 1991-93
  • Porsche 964 (911) RS 3.8L 1991-93
  • Porsche 964 (911) TURBO 3.3L 1991-93
  • Porsche 964 (911) TURBO 3.6L 1991-93
  • Porsche 924S 2.5L 1986-87
  • Porsche 924S 2.5L 1988
  • Porsche 944 2.5L 8V 1982-87
  • Porsche 944 2.7L 8V 1988-89
  • Porsche 944S 2.5L 16V 1987-88
  • Porsche 944S2 3.0L 16V 1989-91
  • Porsche 944 Turbo 2.5L 8V 1985-88
  • Porsche 944 Turbo 2.5L 8V 1989-91
  • Porsche 944 Turbo S 2.5L 8V 1988
  • Porsche 968 3.0L 1992-94
  • Porsche 968 Sport 3.0L 1994-95
  • Porsche 968 CS 3.0L 1993-95
  • Porsche 968 Turbo S 3.0L 1993-94
  • Porsche 928S2 4.7L 1984-86

Diagram ref no 4

Manufactured to OEM standards, this connector is ideal for maintaining or restoring vacuum system integrity across multiple Porsche applications.

Key Features

• Universal-style vacuum Y-piece connector
• Suitable for Porsche 911, 964, 924S, 944, 968, and 928
• Designed for 4mm outer diameter vacuum hoses
• Enables splitting of vacuum lines
• OEM-style fit and function
• Durable construction for long-term reliability

Function and Purpose

This Y-piece is a critical connector within the vacuum system.

It helps to:

• Split a single vacuum line into two outputs
• Maintain proper vacuum routing
• Ensure consistent vacuum pressure distribution
• Support engine and HVAC system operation

Why Replace Your Vacuum Connector

Over time, vacuum connectors can degrade due to heat and age.

Common issues include:

• Cracked or brittle plastic
• Vacuum leaks
• Poor hose connections
• Engine or HVAC system malfunctions

Replacing the Y-piece restores proper vacuum system function.

• Loose or unsecured temperature sensor
• Incorrect temperature readings
• HVAC system inconsistencies
• Broken or missing connector clips

Replacing the lock piece restores proper sensor stability and function.



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

92857372702
92857372702

The product you are viewing cross references to these numbers
DISPLAYING 1 to 16 (of 43 products)
1 2 3
Also found on these pages
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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