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Porsche > 944 (1982-1991) > 944 2.5L 8V 1982-87 > Heating / Air Conditioning >

Heater hoses & pipes

Heater hoses & pipes

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DISPLAYING 1 to 8 (of 8 products)
Air Hose For Air Vents. Porsche 944.2 2.5L 1985-88 - 94457361300
2
Air Hose For Air Vents. Porsche 944.2 2.5L 1985-88
Special Order item
94457361300
Product Information
Product Information
Air Hose For Air Vents.

Fits:
Porsche 944.2 2.5L 1985>>1988

Diagram Ref No 13

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Related, superseded, cross reference or alternative numbers for comparison.

94457361300
94457361300

The product you are viewing cross references to these numbers
Disc valve heater hose. Porsche 924S / 944 / 968 - 94457238501 - URO-004392
2
Disc valve heater hose. Porsche 924S / 944 / 968
94457238501/1
Product Information
Product Information
Disc valve heater hose.

oematch

Fits:
Porsche 924S 1986-88
Porsche 944 1987-91
Porsche 968 1992-95

Click 'Zoom in' to see the diagram.
Diagram ref no 28.

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Related, superseded, cross reference or alternative numbers for comparison.

94457238501
94457238501

The product you are viewing cross references to these numbers
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
Heater hose supply. Porsche 944 1985-91 - 94457258701, 94457258701/1 - URO-004393
2
Heater hose supply. Porsche 944 1985-91
Special Order item
94457258701
Product Information
Product Information
Heater hose supply.

porsche

Fits:
Porsche 944 1985-91 (not S, not Turbo)

Click 'Zoom in' to see the diagram.
Diagram ref no 25.

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Related, superseded, cross reference or alternative numbers for comparison.

94457258701
94457258701
94457258701

The product you are viewing cross references to these numbers
Heater hose supply. Porsche 944 1985-91 - 94457258701 - URO-004393
2
Heater hose supply. Porsche 944 1985-91
94457258701/1
Product Information
Product Information
Heater hose supply.

oematch

Fits:
Porsche 944 1985-91 (not S, not Turbo)

Click 'Zoom in' to see the diagram.
Diagram ref no 25.

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Related, superseded, cross reference or alternative numbers for comparison.

94457258701
94457258701

The product you are viewing cross references to these numbers
Heater hose, Heater control valve to heater core. Porsche 924S / 944 - 94457238301
2
Heater hose, Heater control valve to heater core. Porsche 924S / 944
Special Order item
94457238301
Product Information
Product Information
Heater hose, Heater control valve to heater core.

porsche

Fits:
Porsche 924S 1986-88
Porsche 944 1982-85

Click 'Zoom in' for large parts diagram.
Diagram ref no 33

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

94457238301
94457238301

The product you are viewing cross references to these numbers
Hose on heat exchanger. Porsche 924S / 944 - 94457238102
2
Hose on heat exchanger. Porsche 924S / 944
Special Order item
94457238102
Product Information
Product Information
Hose on heat exchanger.

porsche

Fits:
Porsche 924 S (1986 to 1988)
Porsche 944 (1982 to 1985, excluding Turbo)

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

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

94457238102
94457238102

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DISPLAYING 1 to 8 (of 8 products)
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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