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- Porsche 928S4 5.0L 1987-92
- Porsche 928GT 5.0L 1989-91
- Porsche 928GTS 5.4L 1992-95
OE Match intake distributor throttle to idle control valve hose for Porsche 928 S4, GT, and GTS models from 1987 to 1995. This replacement air ducting hose fits between the idle speed adjuster and throttle body, helping restore correct idle air control, intake sealing, and smooth engine running.
Fits:
Porsche 928 S4 1987 - 1991
Porsche 928 GT 1989 - 1991
Porsche 928 GTS 1992 - 1995
Diagram ref no 15
The hose routes controlled bypass air between the idle speed adjuster and throttle body as part of the idle air control system. A correctly sealed hose helps the engine control idle speed accurately, prevents unmetered air entry, and supports smooth running at idle and low throttle openings.
Functions
• Replaces the intake distributor throttle to idle control valve hose
• Fits between idle speed adjuster and throttle body
• Routes idle control air correctly
• Helps maintain stable idle speed
• Helps prevent vacuum leaks and unmetered air entry
• Supports smooth throttle response and reliable engine running
• Suitable for intake service, idle control repair, or engine bay restoration
• OE Match replacement for Porsche 928 S4, GT, and GTS intake system maintenance.
Why Replace This Part?
Idle control and intake air hoses can harden, crack, split, collapse, or become oil-soaked due to age, heat, engine bay conditions, and repeated temperature cycles. A damaged hose may cause rough idle, high or unstable idle speed, hesitation, vacuum leaks, intake air leaks, poor throttle response, or incorrect idle control valve operation. Replacing the hose helps restore proper intake sealing and idle control system function.
When to Replace This Part
• Idle is rough, high, hunting, or unstable
• Hose is cracked, brittle, split, collapsed, or leaking
• Vacuum leak symptoms are present
• Poor low-speed throttle response is noticed
• Idle speed adjuster or throttle body service is being carried out
• Intake air system maintenance is in progress
• Vehicle is undergoing Porsche 928 engine bay restoration or refresh.
Where it fits on the car
This hose fits within the engine intake and idle air control system, running between the idle speed adjuster and throttle body on Porsche 928 S4, GT, and GTS models.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
92811063300
The product you are viewing cross references to these numbers
- 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
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
- Porsche 911 1978-1983 3.0L / SC
- Porsche 911 1975-1977 3.0L Turbo (930)
- Porsche 924 2.0L 1976-79
- Porsche 924 2.0L 1980-85
- 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
- Porsche 914 (1970-1976)
Vacuum Hose 3.2 x 2mm
Sold per metre
High-quality vacuum hose 3.2 x 5mm designed for various Porsche models.
This versatile hose is sold per metre, allowing you to cut to the exact length required for your application. It is used across various engine bay systems, including vacuum circuits, fuel system connections, and emissions-related components.
Fits:
Porsche 911 1978-1983 3.0L / SC
Porsche 911 1975-1977 3.0L Turbo (930)
Porsche 924 2.0L 1976-79
Porsche 924 2.0L 1980-85
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
Porsche 914 (1970-1976)
Manufactured for durability and flexibility, this hose ensures reliable performance under engine bay conditions, making it ideal for maintenance, repair, or full restoration of classic Porsche models.
Key Features
• 3.2mm internal diameter vacuum hose
• 7mm outer diameter for correct fitment
• Sold per metre for custom lengths
• Suitable for Porsche 911 and 911 Turbo (1970–1977)
• Multi-use across vacuum and fuel systems
• Flexible and durable construction
• OEM-style specification
Function and Purpose
This vacuum hose is used across multiple engine systems.
It helps to:
• Maintain vacuum pressure for engine operation
• Connect vacuum-controlled components
• Support fuel system and carburettor functions
• Ensure proper airflow and system balance
• Enable reliable engine performance
Why Replace Vacuum Hoses
Over time, rubber hoses degrade due to heat and age.
Common issues include:
• Cracking or splitting
• Vacuum leaks affecting performance
• Hardening and loss of flexibility
• Reduced system efficiency
Replacing old hoses restores proper vacuum function and engine reliability.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
PAF020353
The product you are viewing cross references to these numbers
- Porsche 924 2.0L 1976-79
- Porsche 924 2.0L 1980-85
- 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
- Porsche 924S 2.5L 1986-87
- Porsche 924S 2.5L 1988
- Porsche 944 2.5L 8V 1982-87
Breather Hose - 15 x 2.5mm
Sold by the metre
High-quality breather hose with 15 x 2.5mm dimensions, designed for Porsche 924, 924S, and 944 models.
This versatile hose is used across multiple systems,
including fuel tank breather, oil breather, and inlet breather applications,
making it an essential component for maintaining proper ventilation and
pressure balance within the engine and fuel systems.
Fits:
- Porsche 924 2.0L 1976-79
- Porsche 924 2.0L 1980-85
- 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
- Porsche 924S 2.5L 1986-87
- Porsche 924S 2.5L 1988
- Porsche 944 2.5L 8V 1982-85
Diagram ref no 6
Engineered to OEM specifications, this hose offers durability, flexibility, and resistance to heat, oil, and fuel vapours, ensuring reliable performance in demanding engine bay environments. Ideal for maintenance, repair, or restoration of classic Porsche models.
Key Features
• 15 x 2.5mm breather hose specification
• Suitable for Porsche 924, 924S, and 944
• Part number N0203631
• Multi-use: fuel tank, oil, and inlet breather systems
• Resistant to heat, oil, and fuel vapours
• Flexible and durable construction
• OEM-style fit and performance
Function and Purpose
This breather hose serves multiple ventilation roles across the vehicle.
It helps to:
• Vent fuel tank vapours safely
• Regulate pressure in oil breather systems
• Maintain airflow within inlet systems
• Prevent pressure build-up in critical components
• Support efficient engine and fuel system operation
Why Replace Breather Hoses
Breather hoses are exposed to heat, oil, and vapours, leading to wear over time.
Common issues include:
• Cracking or splitting
• Oil or vapour leaks
• Hardening and loss of flexibility
• Reduced ventilation efficiency
Replacing worn hoses ensures proper system balance and prevents performance issues.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
N0203631
The product you are viewing cross references to these numbers
- 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
Auxiliary Air Valve Hose - 18 x 26 x 40mm
High-quality auxiliary air valve hose
designed for Porsche 924 Turbo and 924 GTS models.
Fits:
- 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 32
This hose connects the auxiliary air valve within the intake system, playing a crucial role in regulating airflow during cold starts and engine warm-up. By allowing additional air into the system when required, it helps stabilise idle speed and ensures smooth engine operation.
Manufactured to OEM specifications, this hose offers precise fitment, durability, and resistance to heat and engine bay conditions, making it ideal for maintenance, repair, or restoration of Porsche turbo intake systems.
Key Features
• 18x26mm diameter, 40mm length hose
• Suitable for Porsche 924 Turbo and 924 GTS
• Designed for auxiliary air valve connection
• Supports idle control and cold start performance
• Resistant to heat and engine bay conditions
• Flexible and durable construction
• OEM-style fit and performance
Function and Purpose
This hose is an important part of the intake and idle control system.
It helps to:
• Connect the auxiliary air valve to the intake system
• Regulate airflow during cold starts
• Maintain stable idle speed
• Improve engine warm-up performance
• Ensure smooth and consistent running
Why Replace Auxiliary Air Hoses
Over time, intake hoses can degrade due to heat and pressure.
Common issues include:
• Cracking or splitting
• Air leaks affecting idle and performance
• Hardening and reduced flexibility
• Poor cold start behaviour
Replacing worn hoses restores proper airflow and engine stability.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
93111017301
The product you are viewing cross references to these numbers