Hoses / Pipes / Sleeves

Manifold to Vacuum Limiter Air Hose  – 15 x 24mm
Sold by the metre

High-quality manifold to vacuum limiter air hose designed for Porsche 911 Turbo, 964 Turbo, and 924 Turbo models, supplied per metre for precise fitment and flexible installation.

Fits:

• Porsche 911 1975-1977 3.0L Turbo (930)
• Porsche 911 1978-1989 3.3L Turbo (930)
• Porsche 964 (911) TURBO 3.3L 1991-93
• Porsche 964 (911) TURBO 3.6L 1991-93
• Porsche 924 Turbo 2.0L 1979-81
• Porsche 924 Turbo 2.0L 1982-84
• Porsche 924 Carrera GT 2.0L 1981
• Porsche 924 Carrera GTS 2.0L 1982

Diagram ref no 39  

This hose connects the intake manifold to the vacuum limiter, playing a critical role in regulating vacuum pressure within the turbo system. Proper vacuum control is essential for maintaining boost stability, engine efficiency, and overall drivability in turbocharged Porsche engines.

Manufactured to OEM specifications, this hose ensures durability, flexibility, and resistance to heat and pressure, making it ideal for maintenance, repair, or restoration of Porsche turbo vacuum systems.

Key Features

• Manifold to vacuum limiter hose
• Suitable for Porsche 911 Turbo, 964 Turbo, and 924 Turbo
• Part number 99923900740
• Designed for turbo vacuum and boost control systems
• Sold per metre for custom length applications
• Resistant to heat and pressure
• Flexible and durable construction
• OEM-style fit and performance

Function and Purpose

This hose is a vital component within the turbo vacuum system.

It helps to:
• Connect intake manifold to vacuum limiter
• Regulate vacuum pressure within the turbo system
• Support boost control and engine stability
• Prevent vacuum leaks affecting performance
• Ensure efficient turbocharger operation

Why Replace Vacuum Hoses

Turbo vacuum hoses operate under demanding conditions.

Common issues include:
• Cracking or splitting
• Vacuum leaks reducing boost control
• Hardening and reduced flexibility
• Inconsistent engine performance

Replacing worn hoses restores proper vacuum regulation and engine efficiency.

Related reference numbers
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99923900740

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Cut Off Valve Air Hose - 24 x 4.9mm

High-quality cut off valve air hose designed for Porsche 964 turbo and 993 turbo models, with a 24x4.9mm specification for correct fitment within the turbocharger air system.

Fits:

• Porsche 964 (911) TURBO 3.3L 1991-93
• Porsche 964 (911) TURBO 3.6L 1991-93
• Porsche 993 (911) TURBO 1994-96
• Porsche 993 (911) GT2 1994-97
• Porsche 993 (911) TURBO S 1994-97

Diagram ref no 44  

This hose connects the cut-off (recirculation) valve within the intake system, playing a critical role in managing boost pressure and airflow during throttle changes. It helps prevent compressor surge and ensures smooth turbo operation by recirculating excess air back into the intake system.

Manufactured to OEM standards, this hose provides durability, flexibility, and resistance to heat and pressure, making it ideal for maintaining performance and reliability in turbocharged Porsche engines.

Key Features

• 24x4.9mm air hose for turbo applications
• Suitable for Porsche 964 Turbo and 993 Turbo
• Part number 00004320498
• Designed for cut-off / recirculation valve systems
• Maintains boost pressure control
• Resistant to heat and pressure
• OEM-style fit and performance

Function and Purpose

This hose is a vital component within the turbo intake system.

It helps to:
• Connect the cut-off (bypass) valve to the intake system
• Manage excess boost pressure
• Prevent turbo compressor surge
• Maintain smooth airflow during throttle transitions
• Support consistent turbo performance

Why Replace Air Hoses

Turbo system hoses are subject to high pressure and temperature.

Common issues include:
• Cracking or splitting
• Boost leaks reducing performance
• Hardening and loss of flexibility
• Reduced turbo efficiency

Replacing worn hoses restores proper boost control and engine performance.

Related reference numbers
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00004320498

The product you are viewing cross references to these numbers

Cut Off Valve Air Hose - 24 x 4.9mm
Sold per meter

High-quality cut off valve air hose designed for Porsche 964 turbo and 993 turbo models, with a 24x4.9mm specification for correct fitment within the turbocharger air system.

Fits:

• Porsche 964 (911) TURBO 3.3L 1991-93
• Porsche 964 (911) TURBO 3.6L 1991-93
• Porsche 993 (911) TURBO 1994-96
• Porsche 993 (911) GT2 1994-97
• Porsche 993 (911) TURBO S 1994-97

Diagram ref no 44  

This hose connects the cut-off (recirculation) valve within the intake system, playing a critical role in managing boost pressure and airflow during throttle changes. It helps prevent compressor surge and ensures smooth turbo operation by recirculating excess air back into the intake system.

Manufactured to OEM standards, this hose provides durability, flexibility, and resistance to heat and pressure, making it ideal for maintaining performance and reliability in turbocharged Porsche engines.

Key Features

• 24x4.9mm air hose for turbo applications
• Suitable for Porsche 964 Turbo and 993 Turbo
• Part number 00004320498
• Designed for cut-off / recirculation valve systems
• Maintains boost pressure control
• Resistant to heat and pressure
• OEM-style fit and performance

Function and Purpose

This hose is a vital component within the turbo intake system.

It helps to:
• Connect the cut-off (bypass) valve to the intake system
• Manage excess boost pressure
• Prevent turbo compressor surge
• Maintain smooth airflow during throttle transitions
• Support consistent turbo performance

Why Replace Air Hoses

Turbo system hoses are subject to high pressure and temperature.

Common issues include:
• Cracking or splitting
• Boost leaks reducing performance
• Hardening and loss of flexibility
• Reduced turbo efficiency

Replacing worn hoses restores proper boost control and engine performance.

Related reference numbers
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00004320498

The product you are viewing cross references to these numbers

Air Injection Air Tube.

Fits:
Porsche 964 3.3L Turbo 1991-92
Porsche 964 3.6L Turbo 1993-94

Click 'Zoom in' for large parts diagram.
Diagram ref no 6

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93011304202

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Air Injection Pipe.



Fits:
Porsche 911 TURBO 1978-89
Porsche 964 TURBO 1991-94

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

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93011304302

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Air Injection Pipe.

Fits:
Porsche 911 TURBO 1978-89
Porsche 964 TURBO 1991-94

Diagram ref no 15

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93011304302

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Air intake manifold hose clamp. 78 x 9. Sold each.



Fits:
Porsche 964 3.6L C2 / C4 / RS 1989-94

Click 'Zoom in' for large parts diagram.
Diagram ref no 6

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PCG51200603

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Breather hose air intake system. 



Fits:
Porsche 964 Carrera 2 / Carrera 4 - 1989 to 1994
Porsche 993  Carrera 2 / Carrera 4  - 1994 to 1995
Porsche 993 turbo - 1994 to 1997

Click 'Zoom in' for large parts diagram.
Diagram ref no 36

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96411051504

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Check Valve Connection Piece. M 24 x 2.



Fits:
Porsche 964 Turbo 3.3L 1991-92
Porsche 964 Turbo 3.6L 1993-94

Click 'Zoom in' for large parts diagram.
Diagram ref no 7

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99913603201

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Choke piece air intake breather system.



Fits:
Porsche 964 Carrera 2 / Carrera 4 - 1989 to 1994
Porsche 993  Carrera 2 / Carrera 4  - 1994 to 1998
Porsche 993 RS - 1994 to 1997

Click 'Zoom in' for large parts diagram.
Diagram ref no 31

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96411027800

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Clamp 17x15 – Inlet Manifold & Power Steering Hose Clamp 
Sold each

High-quality 17x15 clamp designed for securing hoses on Porsche 911, 964, 993, and 944 models.

This clamp is used for inlet manifold air hoses on Porsche 911, 964, and 993 models, as well as power steering hoses on the Porsche 944, ensuring correct routing and secure mounting across critical systems.

Fits:

• Porsche 911 1984-1986 3.2L
• Porsche 911 1987-1989 3.2L G50
• 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 993 (911) C2 1994-97
• Porsche 993 (911) C4 1994-97
• Porsche 993 (911) RS 1994-97
• Porsche 993 (911) C2S 1994-97
• Porsche 993 (911) C4S 1994-97
• Porsche 944 2.5L 8V 1985-87
• 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

Diagram ref no 23

Manufactured to OEM specifications, this clamp provides durability, corrosion resistance, and precise fitment. Supplied individually, it is ideal for maintenance, repair, or restoration of Porsche intake and steering systems.

Key Features

• Clamp size 17x15
• Suitable for Porsche 911, 964, 993, and 944
• Part number 99951242802
• Used for inlet manifold and power steering hose applications
• Ensures secure hose mounting and routing
• Prevents vibration-related wear and movement
• Durable and corrosion-resistant construction
• OEM-style fit and performance
• Sold individually

Function and Purpose

This clamp is designed to secure hoses across multiple systems.

It helps to:
• Hold inlet manifold air hoses securely in place
• Maintain correct routing of power steering hoses
• Prevent hose movement and vibration damage
• Support stable airflow and steering system performance
• Ensure long-term system reliability

Why Replace Clamps

Clamps can degrade over time due to heat and environmental exposure.

Common issues include:
• Loss of clamping strength
• Corrosion or fatigue
• Hose movement or disconnection
• Increased risk of leaks or performance issues

Replacing worn clamps ensures secure installation and protects critical systems.

Related reference numbers
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99951242802

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Clamp 17x15 – Inlet Manifold & Power Steering Hose Clamp 
Sold each

High-quality 17x15 clamp designed for securing hoses on Porsche 911, 964, 993, and 944 models.

This clamp is used for inlet manifold air hoses on Porsche 911, 964, and 993 models, as well as power steering hoses on the Porsche 944, ensuring correct routing and secure mounting across critical systems.

Fits:

• Porsche 911 1984-1986 3.2L
• Porsche 911 1987-1989 3.2L G50
• 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 993 (911) C2 1994-97
• Porsche 993 (911) C4 1994-97
• Porsche 993 (911) RS 1994-97
• Porsche 993 (911) C2S 1994-97
• Porsche 993 (911) C4S 1994-97
• Porsche 944 2.5L 8V 1985-87
• 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

Diagram ref no 23

Manufactured to OEM specifications, this clamp provides durability, corrosion resistance, and precise fitment. Supplied individually, it is ideal for maintenance, repair, or restoration of Porsche intake and steering systems.

Key Features

• Clamp size 17x15
• Suitable for Porsche 911, 964, 993, and 944
• Part number 99951242802
• Used for inlet manifold and power steering hose applications
• Ensures secure hose mounting and routing
• Prevents vibration-related wear and movement
• Durable and corrosion-resistant construction
• OEM-style fit and performance
• Sold individually

Function and Purpose

This clamp is designed to secure hoses across multiple systems.

It helps to:
• Hold inlet manifold air hoses securely in place
• Maintain correct routing of power steering hoses
• Prevent hose movement and vibration damage
• Support stable airflow and steering system performance
• Ensure long-term system reliability

Why Replace Clamps

Clamps can degrade over time due to heat and environmental exposure.

Common issues include:
• Loss of clamping strength
• Corrosion or fatigue
• Hose movement or disconnection
• Increased risk of leaks or performance issues

Replacing worn clamps ensures secure installation and protects critical systems.

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

99951242802

The product you are viewing cross references to these numbers

Clamp  D1 20x15   – Multi-Position Clamp 

High-quality D1 20x15 clamp designed for securing various components across Porsche 924S, 944, 928, 964, and 993 models.

This versatile clamp is used in multiple applications including bonnet release cables (924S / 944), expansion tank hoses (944), engine wiring loom (928 S4), injection vacuum hoses (964), and brake reservoir connections (993).

Fits:

• 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 993 (911) C2 1994-97
• Porsche 993 (911) C4 1994-97
• Porsche 993 (911) RS 1994-97
• Porsche 993 (911) C2S 1994-97
• Porsche 993 (911) C4S 1994-97
• Porsche 993 (911) TURBO 1994-96
• Porsche 993 (911) GT2 1994-97
• Porsche 993 (911) TURBO S 1994-97
• 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 928S4 5.0L 1987-92
• Porsche 928GT 5.0L 1989-91
• Porsche 928GTS 5.4L 1992-95

Diagram ref no 24  

Manufactured to OEM specifications, this clamp ensures secure fitment, durability, and resistance to corrosion. Supplied individually, it is ideal for maintenance, repair, or restoration across multiple Porsche systems.

Key Features

• Clamp size D1 20x15
• Suitable for Porsche 964S, 944, 928, 964, and 993
• Part number 99951117701
• Multi-use: cables, hoses, wiring looms, vacuum lines
• Ensures secure mounting and routing
• Prevents vibration-related wear and movement
• Durable and corrosion-resistant construction
• OEM-style fit and performance
• Sold individually

Function and Purpose

This clamp is designed to secure a wide range of components.

It helps to:
• Hold cables, hoses, and wiring looms in place
• Maintain correct routing and alignment
• Prevent vibration-related wear or damage
• Protect sensitive systems such as wiring and vacuum lines
• Ensure long-term reliability across multiple systems

Why Replace Clamps

Clamps can degrade over time due to heat and environmental exposure.

Common issues include:
• Loss of clamping strength
• Corrosion or fatigue
• Movement of hoses, cables, or wiring
• Increased risk of system wear or failure

Replacing worn clamps ensures proper securing and protects critical components.

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

99951117701

The product you are viewing cross references to these numbers

Clamp  D1 20x15   – Multi-Position Clamp 

High-quality D1 20x15 clamp designed for securing various components across Porsche 924S, 944, 928, 964, and 993 models.

This versatile clamp is used in multiple applications including bonnet release cables (924S / 944), expansion tank hoses (944), engine wiring loom (928 S4), injection vacuum hoses (964), and brake reservoir connections (993).

Fits:

• 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 993 (911) C2 1994-97
• Porsche 993 (911) C4 1994-97
• Porsche 993 (911) RS 1994-97
• Porsche 993 (911) C2S 1994-97
• Porsche 993 (911) C4S 1994-97
• Porsche 993 (911) TURBO 1994-96
• Porsche 993 (911) GT2 1994-97
• Porsche 993 (911) TURBO S 1994-97
• 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 928S4 5.0L 1987-92
• Porsche 928GT 5.0L 1989-91
• Porsche 928GTS 5.4L 1992-95

Diagram ref no 24  

Manufactured to OEM specifications, this clamp ensures secure fitment, durability, and resistance to corrosion. Supplied individually, it is ideal for maintenance, repair, or restoration across multiple Porsche systems.

Key Features

• Clamp size D1 20x15
• Suitable for Porsche 964S, 944, 928, 964, and 993
• Part number 99951117701
• Multi-use: cables, hoses, wiring looms, vacuum lines
• Ensures secure mounting and routing
• Prevents vibration-related wear and movement
• Durable and corrosion-resistant construction
• OEM-style fit and performance
• Sold individually

Function and Purpose

This clamp is designed to secure a wide range of components.

It helps to:
• Hold cables, hoses, and wiring looms in place
• Maintain correct routing and alignment
• Prevent vibration-related wear or damage
• Protect sensitive systems such as wiring and vacuum lines
• Ensure long-term reliability across multiple systems

Why Replace Clamps

Clamps can degrade over time due to heat and environmental exposure.

Common issues include:
• Loss of clamping strength
• Corrosion or fatigue
• Movement of hoses, cables, or wiring
• Increased risk of system wear or failure

Replacing worn clamps ensures proper securing and protects critical components.

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

99951117701

The product you are viewing cross references to these numbers

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
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92857372702

The product you are viewing cross references to these numbers

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

The product you are viewing cross references to these numbers