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Hoses / Pipes / Sleeves
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
Fits:
Porsche 911 1972-77 Carburettor Cars
Mechanical Injection only
Click 'Zoom in' for large parts diagram.
Diagram ref no 14
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
91110827200
The product you are viewing cross references to these numbers
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
Fits:
Porsche 911 1972-77 Carburettor Cars
Mechanical Injection only
Diagram ref no 14
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
91110827200
The product you are viewing cross references to these numbers
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera

Fits:
Porsche 911/911S / Carrera 3.0L 1974-76
Porsche 911 1977
Click 'Zoom in' for large parts diagram.
Diagram ref no 46
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
93011035803
The product you are viewing cross references to these numbers
- 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 1987-1989 3.2L G50
- Porsche 911 1975-1977 3.0L Turbo (930)
- 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 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 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 928 4.5L 1978-82
- Porsche 928S 4.7L 1981-83
- Porsche 928S2 4.7L 1984-86
Air Hose 12 x 3,7mm – Brake Servo & Inlet Manifold
Sold by the metre
High-quality air hose designed for multiple Porsche applications, including brake servo (brake booster) systems and inlet manifold connections.
This hose is used on Porsche 911, 924, 928, 964 Carrera 2,
and also within the inlet manifold system on 964 and 993 models. It
plays a critical role in maintaining vacuum pressure for braking assistance and
ensuring proper airflow within the intake system.
Fits:
- 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 1987-1989 3.2L G50
- Porsche 911 1975-1977 3.0L Turbo (930)
- 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 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 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 928 4.5L 1978-82
- Porsche 928S 4.7L 1981-83
- Porsche 928S2 4.7L 1984-86
Supplied per metre, this hose allows precise length replacement and flexible routing, making it ideal for maintenance, repair, or restoration of Porsche vacuum and intake systems. Manufactured to OEM specifications for durability and reliable performance.
Key Features
• Multi-purpose air hose for vacuum and intake systems
• Suitable for Porsche 911, 924, 928, 964, and 993
• Part number 9991810225B
• Used for brake servo and inlet manifold applications
• Sold per metre for custom lengths
• Resistant to heat and vacuum pressure
• Flexible and durable construction
• OEM-style fit and performance
Function and Purpose
This hose serves critical roles across multiple systems.
It helps to:
• Deliver vacuum pressure to the brake servo (booster)
• Maintain effective braking assistance
• Support airflow within the inlet manifold system
• Ensure stable engine operation and efficiency
• Prevent vacuum leaks that affect performance
Why Replace Air / Vacuum Hoses
Over time, hoses degrade due to heat and pressure cycles.
Common issues include:
• Cracking or splitting
• Vacuum leaks reducing brake efficiency
• Hardening and reduced flexibility
• Poor engine performance due to air leaks
Replacing worn hoses restores braking performance and engine efficiency.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
9991810225B
The product you are viewing cross references to these numbers
- 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 1987-1989 3.2L G50
- Porsche 911 1975-1977 3.0L Turbo (930)
- 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 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 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 928 4.5L 1978-82
- Porsche 928S 4.7L 1981-83
- Porsche 928S2 4.7L 1984-86
Air Hose 12 x 3,7mm – Brake Servo & Inlet Manifold
Sold by the metre
High-quality air hose designed for multiple Porsche applications, including brake servo (brake booster) systems and inlet manifold connections.
This hose is used on Porsche 911, 924, 928, 964 Carrera 2,
and also within the inlet manifold system on 964 and 993 models. It
plays a critical role in maintaining vacuum pressure for braking assistance and
ensuring proper airflow within the intake system.
Fits:
- 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 1987-1989 3.2L G50
- Porsche 911 1975-1977 3.0L Turbo (930)
- 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 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 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 928 4.5L 1978-82
- Porsche 928S 4.7L 1981-83
- Porsche 928S2 4.7L 1984-86
Supplied per metre, this hose allows precise length replacement and flexible routing, making it ideal for maintenance, repair, or restoration of Porsche vacuum and intake systems. Manufactured to OEM specifications for durability and reliable performance.
Key Features
• Multi-purpose air hose for vacuum and intake systems
• Suitable for Porsche 911, 924, 928, 964, and 993
• Part number 9991810225B
• Used for brake servo and inlet manifold applications
• Sold per metre for custom lengths
• Resistant to heat and vacuum pressure
• Flexible and durable construction
• OEM-style fit and performance
Function and Purpose
This hose serves critical roles across multiple systems.
It helps to:
• Deliver vacuum pressure to the brake servo (booster)
• Maintain effective braking assistance
• Support airflow within the inlet manifold system
• Ensure stable engine operation and efficiency
• Prevent vacuum leaks that affect performance
Why Replace Air / Vacuum Hoses
Over time, hoses degrade due to heat and pressure cycles.
Common issues include:
• Cracking or splitting
• Vacuum leaks reducing brake efficiency
• Hardening and reduced flexibility
• Poor engine performance due to air leaks
Replacing worn hoses restores braking performance and engine efficiency.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
9991810225B
The product you are viewing cross references to these numbers
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 924 Turbo 2.0L 1979-81
- Porsche 924 Turbo 2.0L 1982-84
Hose 4 x 10mm – Throttle Body to Vacuum Limiter
High-quality 4x10mm hose designed for Porsche 911 models from 1974 to 1977, connecting the throttle body to the vacuum limiter.
This hose plays a crucial role in maintaining correct vacuum
regulation within the intake system. By linking the throttle body to the vacuum
limiter, it ensures stable pressure control, supporting smooth engine operation
and consistent performance.
Fits:
Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
Porsche 924 Turbo 2.0L 1979-81
Porsche 924 Turbo 2.0L 1982-84
Diagram ref no 64
Supplied per metre, this hose allows precise replacement and routing, making it ideal for maintenance, repair, or restoration of classic Porsche 911 intake and vacuum systems. Manufactured to OEM specifications for durability and reliability.
Key Features
• 4mm internal diameter, 10mm outer diameter
• Suitable for Porsche 911 (1974–1977)
• Part number 99918171540
• Connects throttle body to vacuum limiter
• Designed for intake and vacuum system use
• Sold per metre for custom length applications
• Resistant to heat and engine bay conditions
• Flexible and durable construction
• OEM-style fit and performance
Function and Purpose
This hose is a key component of the intake vacuum system.
It helps to:
• Connect throttle body to vacuum limiter
• Regulate vacuum pressure within the intake system
• Maintain stable engine performance
• Prevent vacuum leaks affecting drivability
• Support efficient combustion and airflow
Why Replace Vacuum Hoses
Over time, vacuum hoses degrade due to heat and ageing.
Common issues include:
• Cracking or splitting
• Vacuum leaks reducing engine efficiency
• Hardening and reduced flexibility
• Poor engine response and instability
Replacing worn hoses restores proper vacuum control and engine performance.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99918171540
The product you are viewing cross references to these numbers
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 924 Turbo 2.0L 1979-81
- Porsche 924 Turbo 2.0L 1982-84
Hose 4 x 10mm – Throttle Body to Vacuum Limiter
High-quality 4x10mm hose designed for Porsche 911 models from 1974 to 1977, connecting the throttle body to the vacuum limiter.
This hose plays a crucial role in maintaining correct vacuum
regulation within the intake system. By linking the throttle body to the vacuum
limiter, it ensures stable pressure control, supporting smooth engine operation
and consistent performance.
Fits:
Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
Porsche 924 Turbo 2.0L 1979-81
Porsche 924 Turbo 2.0L 1982-84
Diagram ref no 64
Supplied per metre, this hose allows precise replacement and routing, making it ideal for maintenance, repair, or restoration of classic Porsche 911 intake and vacuum systems. Manufactured to OEM specifications for durability and reliability.
Key Features
• 4mm internal diameter, 10mm outer diameter
• Suitable for Porsche 911 (1974–1977)
• Part number 99918171540
• Connects throttle body to vacuum limiter
• Designed for intake and vacuum system use
• Sold per metre for custom length applications
• Resistant to heat and engine bay conditions
• Flexible and durable construction
• OEM-style fit and performance
Function and Purpose
This hose is a key component of the intake vacuum system.
It helps to:
• Connect throttle body to vacuum limiter
• Regulate vacuum pressure within the intake system
• Maintain stable engine performance
• Prevent vacuum leaks affecting drivability
• Support efficient combustion and airflow
Why Replace Vacuum Hoses
Over time, vacuum hoses degrade due to heat and ageing.
Common issues include:
• Cracking or splitting
• Vacuum leaks reducing engine efficiency
• Hardening and reduced flexibility
• Poor engine response and instability
Replacing worn hoses restores proper vacuum control and engine performance.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99918171540
The product you are viewing cross references to these numbers
- 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 1987-1989 3.2L G50
- Porsche 911 1978-1989 3.3L Turbo (930)
- Porsche 928 4.5L 1978-82
- Porsche 928S 4.7L 1981-83
- Porsche 928S2 4.7L 1984-86
Hose - 4.5 x 9.5mm
Sold per meter
High-quality 4.5x9.5mm hose designed for a variety of applications across Porsche 911 and 928 models, supplied per metre for precise installation and flexible routing.
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 1987-1989 3.2L G50
- Porsche 911 1978-1989 3.3L Turbo (930)
- Porsche 928 4.5L 1978-82
- Porsche 928S 4.7L 1981-83
- Porsche 928S2 4.7L 1984-86
This versatile hose can be used in multiple systems including vacuum lines, fuel system connections, and air hoses, making it an essential component for maintaining proper engine operation and system efficiency.
Manufactured to OEM specifications, this hose provides durability, flexibility, and resistance to heat and fluid exposure, making it ideal for maintenance, repair, or restoration of Porsche engine bay systems.
Key Features
• 4.5mm internal diameter, 9.5mm outer diameter
• Suitable for Porsche 911 and 928
• Multi-purpose hose for vacuum, fuel, and air systems
• Sold per metre for custom length applications
• Resistant to heat and engine bay conditions
• Flexible and durable construction
• OEM-style fit and performance
Function and Purpose
This hose is used across multiple vehicle systems.
It helps to:
• Maintain vacuum pressure in engine systems
• Support fuel delivery between components
• Provide airflow within intake systems
• Ensure leak-free operation across connections
• Support overall engine performance and efficiency
Why Replace Hoses
Over time, hoses degrade due to heat, pressure, and exposure.
Common issues include:
• Cracking or splitting
• Fuel or vacuum leaks
• Hardening and reduced flexibility
• Reduced system efficiency
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99918116750
The product you are viewing cross references to these numbers
- 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 1987-1989 3.2L G50
- Porsche 911 1978-1989 3.3L Turbo (930)
- Porsche 928 4.5L 1978-82
- Porsche 928S 4.7L 1981-83
- Porsche 928S2 4.7L 1984-86
Hose - 4.5 x 9.5mm
Sold per meter
High-quality 4.5x9.5mm hose designed for a variety of applications across Porsche 911 and 928 models, supplied per metre for precise installation and flexible routing.
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 1987-1989 3.2L G50
- Porsche 911 1978-1989 3.3L Turbo (930)
- Porsche 928 4.5L 1978-82
- Porsche 928S 4.7L 1981-83
- Porsche 928S2 4.7L 1984-86
This versatile hose can be used in multiple systems including vacuum lines, fuel system connections, and air hoses, making it an essential component for maintaining proper engine operation and system efficiency.
Manufactured to OEM specifications, this hose provides durability, flexibility, and resistance to heat and fluid exposure, making it ideal for maintenance, repair, or restoration of Porsche engine bay systems.
Key Features
• 4.5mm internal diameter, 9.5mm outer diameter
• Suitable for Porsche 911 and 928
• Multi-purpose hose for vacuum, fuel, and air systems
• Sold per metre for custom length applications
• Resistant to heat and engine bay conditions
• Flexible and durable construction
• OEM-style fit and performance
Function and Purpose
This hose is used across multiple vehicle systems.
It helps to:
• Maintain vacuum pressure in engine systems
• Support fuel delivery between components
• Provide airflow within intake systems
• Ensure leak-free operation across connections
• Support overall engine performance and efficiency
Why Replace Hoses
Over time, hoses degrade due to heat, pressure, and exposure.
Common issues include:
• Cracking or splitting
• Fuel or vacuum leaks
• Hardening and reduced flexibility
• Reduced system efficiency
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99918116750
The product you are viewing cross references to these numbers
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 911 1978-1983 3.0L / SC
- Porsche 911 1975-1977 3.0L Turbo (930)
- Porsche 928 4.5L 1978-82
- Porsche 928S 4.7L 1981-83
- Porsche 928S2 4.7L 1984-86
- Porsche 928S4 5.0L 1987-92
- Porsche 928GT 5.0L 1989-91
- Porsche 928GTS 5.4L 1992-95
Hose 8 x 14mm Wastegate, Warm Up Regulator & Coolant
Expansion Tank
Sold per metre
High-quality hose designed for multiple Porsche applications, including the warm-up regulator (WUR) and turbocharger wastegate systems on the Porsche 911, as well as the coolant expansion bottle on the Porsche 928.
This versatile hose supports both fuel/air control systems and coolant circulation, making it an essential component for maintaining proper engine performance, boost control, and cooling system efficiency.
Fits:
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 911 1978-1983 3.0L / SC
- Porsche 911 1975-1977 3.0L Turbo (930)
- Porsche 928 4.5L 1978-82
- Porsche 928S 4.7L 1981-83
- Porsche 928S2 4.7L 1984-86
- Porsche 928S4 5.0L 1987-92
- Porsche 928GT 5.0L 1989-91
- Porsche 928GTS 5.4L 1992-95
Diagram ref no 16 and 46
Supplied per metre, this hose allows precise length replacement and flexible routing, making it ideal for maintenance, repair, or restoration of Porsche engine bay systems. Manufactured to OEM specifications for durability and reliable performance.
Key Features
• 8mm internal diameter, 14mm outer diameter
• Suitable for Porsche 911 and Porsche 928
• Part number 99918170950
• Multi-use: WUR, wastegate, and coolant expansion systems
• Sold per metre for custom length applications
• Resistant to heat, pressure, and fluid exposure
• Flexible and durable construction
• OEM-style fit and performance
Function and Purpose
This hose is used across several critical systems.
It helps to:
• Supply air or pressure signals to the warm-up regulator (WUR)
• Support turbocharger wastegate operation and boost control
• Transport coolant to/from the expansion bottle (928)
• Maintain system pressure and fluid flow
• Ensure reliable engine and turbo performance
Why Replace Hoses
Hoses degrade over time due to heat, pressure, and fluid exposure.
Common issues include:
• Cracking or splitting
• Boost or vacuum leaks affecting performance
• Coolant leaks leading to overheating
• Hardening and reduced flexibility
Replacing worn hoses ensures safe operation and restores system efficiency.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99918170950
The product you are viewing cross references to these numbers
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 911 1978-1983 3.0L / SC
- Porsche 911 1975-1977 3.0L Turbo (930)
- Porsche 928 4.5L 1978-82
- Porsche 928S 4.7L 1981-83
- Porsche 928S2 4.7L 1984-86
- Porsche 928S4 5.0L 1987-92
- Porsche 928GT 5.0L 1989-91
- Porsche 928GTS 5.4L 1992-95
Hose 8 x 14mm Wastegate, Warm Up Regulator & Coolant
Expansion Tank
Sold per metre
High-quality hose designed for multiple Porsche applications, including the warm-up regulator (WUR) and turbocharger wastegate systems on the Porsche 911, as well as the coolant expansion bottle on the Porsche 928.
This versatile hose supports both fuel/air control systems and coolant circulation, making it an essential component for maintaining proper engine performance, boost control, and cooling system efficiency.
Fits:
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 911 1978-1983 3.0L / SC
- Porsche 911 1975-1977 3.0L Turbo (930)
- Porsche 928 4.5L 1978-82
- Porsche 928S 4.7L 1981-83
- Porsche 928S2 4.7L 1984-86
- Porsche 928S4 5.0L 1987-92
- Porsche 928GT 5.0L 1989-91
- Porsche 928GTS 5.4L 1992-95
Diagram ref no 16 and 46
Supplied per metre, this hose allows precise length replacement and flexible routing, making it ideal for maintenance, repair, or restoration of Porsche engine bay systems. Manufactured to OEM specifications for durability and reliable performance.
Key Features
• 8mm internal diameter, 14mm outer diameter
• Suitable for Porsche 911 and Porsche 928
• Part number 99918170950
• Multi-use: WUR, wastegate, and coolant expansion systems
• Sold per metre for custom length applications
• Resistant to heat, pressure, and fluid exposure
• Flexible and durable construction
• OEM-style fit and performance
Function and Purpose
This hose is used across several critical systems.
It helps to:
• Supply air or pressure signals to the warm-up regulator (WUR)
• Support turbocharger wastegate operation and boost control
• Transport coolant to/from the expansion bottle (928)
• Maintain system pressure and fluid flow
• Ensure reliable engine and turbo performance
Why Replace Hoses
Hoses degrade over time due to heat, pressure, and fluid exposure.
Common issues include:
• Cracking or splitting
• Boost or vacuum leaks affecting performance
• Coolant leaks leading to overheating
• Hardening and reduced flexibility
Replacing worn hoses ensures safe operation and restores system efficiency.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99918170950
The product you are viewing cross references to these numbers
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
Fits:
Porsche 911/911S 1974-77
Click 'Zoom in' for large parts diagram.
Diagram ref no 9
Price is for each.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
9995122670B
The product you are viewing cross references to these numbers
- 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 356 1950-55
- Porsche 356A 1955-59
- Porsche 356B 1959-63
- Porsche 356C 1963-65

Fits:
Porsche 911 - 1974 to 1989
Porsche 964 - 1989 to 1994
Porsche 993 - 1994 to 1998
Porsche 914 - 1970 to 1976
Porsche 924 - 1980 to 1985
Porsche 944 - 1982 to 1991
Porsche 968 - 1992 to 1995
Porsche 928 - 1978 to 1995
Click 'Zoom in' for large parts diagram.
Diagram ref no 29
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
PCG0235692
The product you are viewing cross references to these numbers
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
Fits:
Porsche 911 69-77 MFI
Click 'Zoom in' for large parts diagram.
Diagram ref no 28
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
90111029500
The product you are viewing cross references to these numbers
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
Fits:
Porsche 911 69-77 MFI
Click 'Zoom in' for large parts diagram.
Diagram ref no 29
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
PCG11029600
The product you are viewing cross references to these numbers
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera

Fits:
Porsche 911 69-77 MFI
Click 'Zoom in' for large parts diagram.
Diagram ref no 28
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
90111029500
The product you are viewing cross references to these numbers
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Air cleaner k-jetronic 911 1974-77 106-00
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Air cleaner regulator housing Model 911/83 1974-77 (not for COUPE/TARGA) 106-05
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K - JETRONIC mixture control unit 911 1974-76 107-00
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K - JETRONIC mixture control unit 911 1977 ONWARDS 107-05
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Mechanical injection left for Model 911/83 1974-77 107-20
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Mechanical injection right for Model 911/83 1974-77 107-25
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Vacuum system for clutch release 911 1974-77 SPM 107-30
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Fuel system rear for mechanical injection for engine 911/83 Carrera 2.7 201-20
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Brake master cylinder for cars with brake booster 911 1977 ONWARDS 604-10
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Cruise control 911 1974-77 909-00
Air Inlet Hoses, Pipes & Sleeves – Durable Intake Components for Porsche Performance
Air inlet hoses, pipes, and sleeves are essential components of your Porsche’s intake system, connecting the air filter housing, throttle body, turbocharger, and intercooler. They ensure a smooth and sealed flow of air into the engine, supporting efficient combustion, responsive acceleration, and consistent performance.
At Design911, we supply a full range of genuine and high-quality air inlet hoses, pipes, and sleeves for numerous Porsche models that include 911, Boxster, Cayman, Cayenne, Macan, and Panamera models. Each component is engineered for precision fitment, heat resistance, and airflow stability — helping your Porsche deliver the performance and reliability it’s known for.
What Do Air Inlet Hoses, Pipes & Sleeves Do?
These components channel filtered air through the intake
system to the engine’s combustion chambers. Their main functions include:
- Maintaining
airtight airflow between intake components.
- Reducing
turbulence and air loss for improved throttle response.
- Supporting
optimal air pressure for turbocharged and naturally aspirated engines.
- Protecting against contaminants that can reduce performance or cause engine wear.
In turbocharged Porsche models, these parts also help manage boost pressure, making them crucial to both efficiency and power delivery.
Why Do Air Inlet Hoses, Pipes & Sleeves Fail?
Due to their constant exposure to heat, vibration, and
engine movement, air inlet components can deteriorate over time. Common causes
of failure include:
- Cracking
or splitting from heat cycles and material fatigue.
- Oil
or fuel vapor contamination softening the rubber or plastic.
- Loose
or damaged clamps causing vacuum or boost leaks.
- Age-related
hardening leading to brittle connections.
- Excessive boost pressure stressing the hose in performance applications.
Symptoms of failure include hissing or whistling noises, loss of boost pressure, poor throttle response, rough idling, or a check engine light caused by airflow irregularities.
Why Replace Worn Air Inlet Components?
A leaking or damaged inlet hose can cause unmetered air to enter the engine, resulting in incorrect fuel-air ratios, poor performance, or even turbocharger strain. Replacing worn or cracked hoses and pipes ensures proper airflow, efficient combustion, and reliable performance.
Benefits of replacement include:
- Restored air pressure and engine response.
- Improved turbo efficiency and power delivery.
- Enhanced fuel economy and reduced emissions.
- Long-term reliability with manufacturer-quality materials.
All hoses, pipes, and sleeves available at Design911 are crafted from high-temperature silicone, reinforced rubber, or aluminium alloys for superior sealing, flexibility, and strength — ensuring dependable performance under demanding conditions.