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Your Vehicle  //  Porsche  //  911 & 912 (1965-1989)  //  911 1974-1977 2.7L / 1976-77 3.0 Carrera

Hoses / Pipes / Sleeves

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DISPLAYING 1 to 16 (of 19 products)
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91110827200
Product Information
Product Information
Air filter housing rubber hose.

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Related, superseded, cross reference or alternative numbers for comparison.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
91110827200
1616000800

The product you are viewing cross references to these numbers
91110827200/1
Product Information
Product Information
Air Filter Housing Rubber Hose.

The OE MATCH Air Filter Housing Rubber Hose 91110827200/1 is a replacement rubber connection hose designed for selected classic Porsche 911 models manufactured between 1972 and 1977.

Fits:
  • Porsche 911 1972-77 Carburettor Cars (Mechanical Injection Only)

Diagram Ref No 14

Designed to provide OE-style fitment and functionality, this component forms part of the original air cleaner and mechanical fuel injection intake arrangement.

The hose connects the air filter housing snorkel to the associated regulator housing, helping maintain the intended airflow connection between these components.

Also known as an air cleaner snorkel hose, air filter housing connection hose or intake regulator hose, this flexible rubber component accommodates the connection between the adjoining intake system parts.

The Porsche 911 air cleaner system is designed to supply filtered air while maintaining the correct configuration of the engine's intake and associated control components.

Over time, original rubber hoses can deteriorate due to engine heat, temperature changes, vibration, exposure to oil vapours and general ageing.

A damaged or poorly fitted hose may become cracked, hardened, split or loose, potentially allowing unwanted air movement and compromising the original intake arrangement.

The OE MATCH replacement provides a practical solution for restoring the original hose connection without replacing the complete air cleaner housing.

Ideal for engine bay refurbishment, air intake repairs, mechanical fuel injection system maintenance and classic Porsche restoration projects, this component helps preserve the factory-style configuration of the air cleaner assembly.

What This Product Does:
The air filter housing rubber hose forms a flexible connection between the air cleaner snorkel and the associated regulator housing on applicable Porsche 911 intake systems.

Its key functions include:

  • Air Cleaner Connection: Connects the air filter housing snorkel to the associated regulator housing.
  • Airflow Routing: Helps maintain the intended passage between the connected air cleaner components.
  • Secure Component Connection: Provides a flexible interface between adjoining intake system parts.
  • Air Leakage Reduction: Helps maintain a secure connection when correctly fitted and clamped.
  • Intake System Integrity: Supports the original air cleaner and regulator housing arrangement.
  • Vibration Accommodation: Allows limited flexibility between connected components during normal engine operation.
  • Temperature Resistance: Designed for the conditions encountered within the engine compartment.
  • Original Equipment Configuration: Maintains the factory-style hose routing and connection arrangement.
  • Restoration Compatibility: Provides an OE-style replacement for deteriorated original rubber hoses.
  • Air Cleaner System Maintenance: Allows the connecting hose to be renewed independently of the complete air cleaner assembly.

Symptoms Of Wear Or Failure:
The air filter housing rubber hose is exposed to repeated temperature changes, vibration and environmental ageing throughout the vehicle's service life.

Common symptoms include:

1. Cracked or Split Rubber

Visible cracks or splits may develop as the rubber loses flexibility.

These can compromise the connection between the air cleaner snorkel and regulator housing.

2. Hardened or Brittle Hose

Prolonged engine heat and ageing can cause the rubber to become stiff, brittle or less capable of sealing around the adjoining components.

3. Loose Hose Connections

A deteriorated or incorrectly fitted hose may become loose at one or both ends.

This can affect the intended airflow arrangement and may produce unwanted movement.

4. Shrunken or Deformed Rubber

Ageing may cause the hose to shrink, distort or lose its original shape, making correct installation difficult.

5. Torn Hose Ends

Repeated removal, overtightened clamps or general deterioration may cause the ends of the hose to split or tear.

6. Air Leakage Around Connections

A damaged hose or loose clamp may allow air to escape from or enter the connected passage.

The effect on engine operation depends on the hose's function within the specific intake configuration.

7. Increased Intake Noise

Unexpected hissing, whistling or changes in intake sound may indicate a loose or damaged connection.

8. Oil Residue and Surface Deterioration

Exposure to engine oil vapours and contamination may contribute to softening, swelling or deterioration of some ageing rubber components.

9. Visible Hose Collapse

A weakened or incorrectly installed hose may become distorted or collapse, potentially affecting the intended airflow passage.

10. Damaged Hose Clamps

Corroded, loose or overtightened clamps may prevent the hose from being secured correctly.

11. Engine Running Irregularities

Depending on the specific intake arrangement, significant air leaks or restrictions may contribute to inconsistent engine behaviour.

However, poor running should not automatically be attributed to this hose.

12. Deterioration Identified During Servicing

Cracks, hardening or damaged hose ends may become apparent when removing the air cleaner assembly for maintenance.

Why Replacement Matters:

  • Replacing a cracked, hardened or damaged air filter housing rubber hose helps maintain the original intake system configuration and supports reliable operation of the associated air cleaner components.
  • The Porsche 911 air cleaner assembly is designed to route air through the appropriate components while maintaining secure connections.
  • The rubber connection hose provides an important interface between the air cleaner snorkel and regulator housing.
  • When this hose deteriorates, the original connection may no longer remain securely sealed or correctly positioned.



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

91110827200
91110827200

The product you are viewing cross references to these numbers
Special Order item
93011035803
Product Information
Product Information
Air intake boot for K-jet mixture control unit.

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
93011035803

The product you are viewing cross references to these numbers
Special Order item
9991810225B
Product Information
Product Information

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
9991810225B
99918102251
99923901840
99918102250
91112570300

The product you are viewing cross references to these numbers
9991810225B/1
Product Information
Product Information

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
9991810225B
99918102251
99923901840
99918102250
91112570300

The product you are viewing cross references to these numbers
Special Order item
99918171540
Product Information
Product Information

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
99918171540

The product you are viewing cross references to these numbers
99918171540/1
Product Information
Product Information

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
99918171540

The product you are viewing cross references to these numbers
Special Order item
99918116750
Product Information
Product Information

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

Replacing worn hoses ensures safe operation and reliable performance.

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

99918116750
99918116750

The product you are viewing cross references to these numbers
99918116750/1
Product Information
Product Information

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

Replacing worn hoses ensures safe operation and reliable performance.

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

99918116750
99918116750

The product you are viewing cross references to these numbers
Special Order item
99918170950
Product Information
Product Information

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
99918170950

The product you are viewing cross references to these numbers
99918170950/1
Product Information
Product Information

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
99918170950

The product you are viewing cross references to these numbers
Special Order item
9995122670B
Product Information
Product Information
Hose clamp for rubber sleeve between intake pipe on individual cylinders and intake manifold.

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
9995122670B

The product you are viewing cross references to these numbers
Special Order item
PCG0235692
Product Information
Product Information
Hose clip fuel nd air hose. 

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
PCG0235692
N 0235692
N0235692

The product you are viewing cross references to these numbers
90111029500/1
Product Information
Product Information

OE Match inner injection pump pre-heat pipe for mechanically injected Porsche 911 applications from 1969–77. The supplied specification is 25 X 580 mm.

Fits

  • Porsche 911 69-77 MFI

For vehicles equipped with mechanical fuel injection only; confirm the injection system rather than relying on model year alone. Check fitment for your specific vehicle (model, year, engine) before ordering.

Diagram ref no 28

What This Product Does

This hose forms the inner section of the injection pump pre-heating pipework. It is a replacement component for repairs or restoration of the existing mechanical injection installation, not a fuel delivery line or an injection pump.

Functions

  • Provides the inner connection within the pump pre-heating arrangement.
  • Replaces damaged or missing pre-heat pipework.

Technical Details

  • Part reference: 90111029500.
  • Position: Inner.
  • Supplied dimensions: 25 X 580 mm.
  • Application: mechanical fuel injection, also identified as MFI.

Symptoms of Fault

Inspect the existing pipe for splits, cracking, brittle sections and damaged connections. A loose or deteriorated hose warrants inspection, but general running problems should be diagnosed before attributing them to this component.

Why Replacement Matters

Renewing a damaged pre-heat hose restores the intended pipe connection during injection-system maintenance or an engine restoration. Check adjoining connections and retaining hardware at the same time so that worn supporting parts are not overlooked.

FAQs

Will this fit every 911 within the listed years?
No. The vehicle must have the appropriate mechanical injection installation. Confirm the original reference, dimensions and inner position before selecting the replacement.

What should be checked before fitting?
Compare the removed hose with the supplied specification and inspect the adjoining pipework, connections and fixings for deterioration.



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

90111029500
90111029500
911223-091
911223-091

The product you are viewing cross references to these numbers
91111088502/1
Product Information
Product Information

Rubber sleeve inlet manifold
OE Match inlet manifold rubber sleeve for Porsche 911 and 911S 2.7L models with K-Jetronic fuel injection, covering 1974–1977.
Sold individually, 6 required per car.


Fits
Porsche 911 / 911S - 1974 to 1977
  * For cars with K-Jetronic fuel injection

Diagram ref no 8.

What This Product Does

The rubber sleeve forms a flexible, sealed connection within the inlet manifold assembly. Maintaining this joint helps prevent unwanted air entering through a damaged connection.


Functions

  • Connects adjoining intake components.
  • Seals the inlet connection against air leakage.


Technical Details

  • Part reference: 91111088502
  • Brand: OE Match.
  • Construction: rubber sleeve.
  • Fuel injection application: K-Jetronic.
  • Diagram engine/model designation: 911/911S.
  • Vehicle requirement: six sleeves; this does not indicate a six-piece pack.


Symptoms of Fault

Inspect the sleeve for splits, hardening or damage around its connections. An intake leak may accompany an uneven idle, hesitation, stalling or a hissing sound. These symptoms can have other causes, so confirm the source before replacing parts.


Why Replacement Matters

Renewing a deteriorated sleeve addresses a potential air-leak path in the intake assembly. Check the adjoining connections and clamps during installation, as worn supporting components can leave the joint improperly sealed.


FAQs

How many sleeves does the car require?
Six are required per vehicle. The required quantity is not a statement of pack contents.

What should be checked before fitting?
Confirm the vehicle's injection system and part reference, then inspect the mating surfaces and clamps.

How can an intake leak be investigated?
Visual inspection and an intake smoke test can help locate a leaking connection.



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

91111088502
91111088502
911 110 885 02

The product you are viewing cross references to these numbers
Special Order item
90111029500
Product Information
Product Information
Pre-heat pipe, Inner, 25 X 560 mm for cars with mechanical injection.

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
90111029500

The product you are viewing cross references to these numbers
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About Hoses / Pipes / Sleeves

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.

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