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Fuel Lines & Breather Hoses

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DISPLAYING 17 to 32 (of 37 products)
1 2 3
93011030303/1
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Fuel Feed Hose – Metering Head Line 

High-quality replacement fuel feed hose designed for Porsche 911 turbo (930) and 964 turbo models, connecting directly to the fuel metering head within the K-Jetronic system

This hose plays a crucial role in feeding  fuel to the metering head, ensuring proper pressure regulation and stable fuel delivery. Correct operation is essential for maintaining optimal engine performance, smooth running, and consistent fuel system behaviour in turbocharged applications.

Fits:

  • Porsche 911 1978-1989 3.3L Turbo (930)
  • Porsche 964 (911) TURBO 3.3L 1991-93
  • Porsche 964 (911) TURBO 3.6L 1991-93

Diagram ref no 11

Manufactured to OEM specifications, this fuel feed hose ensures precise fitment along with excellent resistance to fuel, heat, and pressure—making it ideal for maintenance, repair, or restoration of Porsche turbo fuel systems.

Key Features

• Direct replacement fuel feed hose to the metering head
• Suitable for Porsche 911 turbo (930) & 964 turbo
• Designed for K-Jetronic fuel injection systems
• Maintains correct fuel pressure and circulation
• Resistant to fuel, heat, and high pressure
• OEM-style fit and performance

Function and Purpose

This hose is a vital component of the K-Jetronic fuel system.

It helps to:

• Supply fuel to the metering head
• Maintain stable fuel pressure within the system
• Support accurate fuel metering and distribution
• Ensure consistent engine performance

Why Replace Your Fuel Supply Hose

Fuel hoses in K-Jetronic systems are exposed to high pressure and temperature.

Common issues include:

• Cracking or degradation of hose material
• Fuel leaks under pressure
• Irregular fuel pressure behaviour
• Poor engine performance or drivability

Replacing the hose restores safe and reliable fuel system operation.



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93011030303
93011030302
93011030301
93011030303

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93011030303
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Fuel line, feed.

Fits:
Porsche 911 3.0L Turbo 1975-77
Porsche 911 3.3L Turbo 1978-89
Porsche 964 3.3L / 3.6L Turbo 1990-94

Diagram ref no 11

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93011030303
93011030302
93011030301
93011030303

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93035606804
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Fuel Line. Connects to Fuel Pump


porsche

Fits:
Porsche 911 (930) Turbo 1975-89

Click picture for large parts diagram.
Diagram Ref No 14.



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93035606804
93035606802
93035606804

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91135609103
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Fuel Line. Fuel filter to Accumulator.

porsche

Fits:
Porsche 911 1981-89

Click 'Zoom in' for large parts diagram.
Diagram ref no 17

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91135609103
91135609102
91135609103

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93011030505
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Fuel line.

Fits:
Porsche 911 (930) Turbo 3.3L 1978-89
Porsche 964 Turbo 3.3L 1991-92
Porsche 964 Turbo 3.6L 1993-94

Diagram ref no 17

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93011030505
93011030503
93011030502
93011030505

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93011030505/1
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Fuel Return Hose – Metering Head Line 

High-quality replacement fuel return hose designed for Porsche 911 Turbo (930) and 964 turbo models, connecting directly to the fuel metering head within the K-Jetronic system

This hose plays a crucial role in returning excess fuel from the metering head back into the fuel system, ensuring proper pressure regulation and stable fuel delivery. Correct operation is essential for maintaining optimal engine performance, smooth running, and consistent fuel system behaviour in turbocharged applications.

Fits:

  • Porsche 911 1978-1989 3.3L Turbo (930)
  • Porsche 964 (911) TURBO 3.3L 1991-93
  • Porsche 964 (911) TURBO 3.6L 1991-93

Diagram ref no 17

Manufactured to OEM specifications, this fuel return hose ensures precise fitment along with excellent resistance to fuel, heat, and pressure—making it ideal for maintenance, repair, or restoration of Porsche turbo fuel systems.

Key Features

• Direct replacement fuel return hose from metering head
• Suitable for Porsche 911 turbo (930) & 964 turbo
• Designed for K-Jetronic fuel injection systems
• Maintains correct fuel pressure and circulation
• Resistant to fuel, heat, and high pressure
• OEM-style fit and performance

Function and Purpose

This hose is a vital component of the K-Jetronic fuel system.

It helps to:

• Return excess fuel from the metering head
• Maintain stable fuel pressure within the system
• Support accurate fuel metering and distribution
• Ensure consistent engine performance

Why Replace Your Fuel Return Hose

Fuel hoses in K-Jetronic systems are exposed to high pressure and temperature.

Common issues include:

• Cracking or degradation of hose material
• Fuel leaks under pressure
• Irregular fuel pressure behaviour
• Poor engine performance or drivability

Replacing the hose restores safe and reliable fuel system operation.



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93011030505
93011030503
93011030502
93011030505

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93011030208
Product Information
Product Information
Fuel line.

porsche

Fits:
Porsche 911 Turbo 3.3L 1978-89
Porsche 964 Turbo 3.3L 1991-92
Porsche 964 Turbo 3.6L 1993-94

Click 'Zoom in' for large parts diagram.
Diagram ref no 16

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93011030208
93011030205
93011030201
93011030208

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93011030411
Product Information
Product Information
Fuel return line.

porsche

Fits:
Porsche 911 Turbo 78-89

Diagram ref no 29

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93011030411
93011030403
93011030411

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91135606612
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Fuel Tank Pressure Line

porsche

Fits:
Porsche 911 SC 1977-79
Porsche 911 Turbo 3.0L 1977
Porsche 911 Turbo 3.3L 1978-89

Click 'Zoom in' for large parts diagram.
Diagram ref no 38

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91135606612
91135606607
91135606612

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91135606213
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Fuel Tank Return Line

porsche

Fits:
Porsche 911/911S / Carrera 3.0L 1974-77
Porsche 911 SC 1978-79

Porsche 911 (930) TURBO 1975-77
Porsche 911 (930) TURBO 1978-89

Click 'Zoom in' for large parts diagram.
Diagram ref no 38

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91135606213
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91135606213
91135606214

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91135620203
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Grommet fuel line. 


porsche

Fits:
Porsche 911 - 1974 to 1989

Click 'Zoom in' for large parts diagram.
Diagram ref no 41



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91135620203

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99918116750
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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.

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99918116750
99918116750

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99918116750/1
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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.

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99918116750
99918116750

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90017502001
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M12 Banjo Bolt – Various applications
Sold each

M12 banjo bolt  designed for multiple applications across Porsche models including the 911, 964, 993, 924, and 928.

Fits:

  • 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 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

Diagram ref no 39 

This versatile banjo bolt is used to secure banjo fittings on wastegates, fuel pipes, gearbox oil pipes and power steering systems, ensuring a strong and leak-free connection under pressure. It is particularly important in turbocharged applications where reliable sealing is critical for maintaining correct oil and fuel flow.

Manufactured to OEM specifications, this bolt delivers precise fitment and dependable sealing performance across multiple systems, making it ideal for maintenance, repair, or restoration of Porsche vehicles.

Key Features

• M12 banjo bolt for multiple Porsche applications
• Suitable for wastegate, fuel pipes, and power steering systems
• Compatible with 911, 964, 993, 924, and 928 models
• Designed for high-pressure fluid systems
• Ensures secure, leak-free connections
• OEM-style fit and specification
• Durable construction for long-term reliability

Function and Purpose

This banjo bolt is a critical fastening component used across several systems.

It helps to:
• Secure banjo fittings to wastegate oil lines
• Connect fuel pipes within the fuel delivery system
• Fasten power steering fluid lines
• Maintain proper sealing under pressure
• Ensure consistent fluid flow and system performance

Why Replace Banjo Bolts

Over time, banjo bolts can wear or degrade due to pressure, heat, and fluid exposure.

Common issues include:
• Oil or fuel leaks at connection points
• Thread wear or damage
• Corrosion over time
• Reduced sealing performance

Replacing worn bolts ensures safe operation and maintains system integrity across multiple vehicle systems.



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

90017502001
90017502001

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90017502001/1
Product Information
Product Information

M12 Banjo Bolt – Various applications
Sold each

M12 banjo bolt  designed for multiple applications across Porsche models including the 911, 964, 993, 924, and 928.

Fits:

  • 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 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

Diagram ref no 39 

This versatile banjo bolt is used to secure banjo fittings on wastegates, fuel pipes, gearbox oil pipes and power steering systems, ensuring a strong and leak-free connection under pressure. It is particularly important in turbocharged applications where reliable sealing is critical for maintaining correct oil and fuel flow.

Manufactured to OEM specifications, this bolt delivers precise fitment and dependable sealing performance across multiple systems, making it ideal for maintenance, repair, or restoration of Porsche vehicles.

Key Features

• M12 banjo bolt for multiple Porsche applications
• Suitable for wastegate, fuel pipes, and power steering systems
• Compatible with 911, 964, 993, 924, and 928 models
• Designed for high-pressure fluid systems
• Ensures secure, leak-free connections
• OEM-style fit and specification
• Durable construction for long-term reliability

Function and Purpose

This banjo bolt is a critical fastening component used across several systems.

It helps to:
• Secure banjo fittings to wastegate oil lines
• Connect fuel pipes within the fuel delivery system
• Fasten power steering fluid lines
• Maintain proper sealing under pressure
• Ensure consistent fluid flow and system performance

Why Replace Banjo Bolts

Over time, banjo bolts can wear or degrade due to pressure, heat, and fluid exposure.

Common issues include:
• Oil or fuel leaks at connection points
• Thread wear or damage
• Corrosion over time
• Reduced sealing performance

Replacing worn bolts ensures safe operation and maintains system integrity across multiple vehicle systems.



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90017502001
90017502001

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93011043401
Product Information
Product Information
Mounting bracket fuel pipe clamp. 

porsche

Fits:
Porsche 911 turbo - 1975 to 1989
Porsche 964 turbo - 1991 to 1993

Click 'Zoom in' for large parts diagram.
Diagram ref no 10




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93011043401
93011043401

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DISPLAYING 17 to 32 (of 37 products)
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About Fuel Lines & Breather Hoses

Fuel Lines & Breather Hoses – Reliable Fuel Flow and Ventilation for Porsche Engines

Fuel lines and breather hoses are essential for maintaining safe, consistent, and efficient operation of your Porsche’s fuel and vapour management systems. The fuel lines transport petrol from the tank to the engine, while breather hoses manage pressure and vapour circulation within the fuel system, ensuring smooth refuelling and balanced performance.

At Design911, we supply a complete range of fuel lines, connectors, and breather hoses designed for long-lasting performance, accurate fitment, and durability under high-pressure and high-temperature conditions. Built from fuel-resistant rubber, reinforced composites, or stainless steel, each component ensures secure sealing, corrosion resistance, and reliable fuel delivery for both classic and modern Porsche vehicles.

Whether you’re servicing a classic 911, restoring a transaxle Porsche, or maintaining a performance 992, our manufacturer-quality components guarantee safe, efficient, and leak-free operation.

What Do Fuel Lines and Breather Hoses Do?

Fuel lines and breather hoses play crucial roles in maintaining a balanced and efficient fuel system.

Core Functions:

  • Fuel Lines: Safely transport pressurised fuel from the tank to the injectors or carburetors.
  • Breather Hoses: Equalise air pressure within the tank and prevent vapour lock or vacuum formation.
  • Vapour Management: Direct excess vapours back into the intake or carbon canister for emissions control.
  • System Integrity: Maintain proper sealing to avoid leaks, fumes, and performance loss.

A reliable fuel line and breather hose system is essential for optimal fuel delivery, safety, and emissions control.

Why Do Fuel Lines and Breather Hoses Fail?

Over time, these components are exposed to heat, vibration, and corrosive fuels, causing them to deteriorate.

Common Causes of Failure Include:

  • Cracking, hardening, or swelling due to ethanol-based fuels.
  • Internal corrosion or blockage from fuel contamination.
  • Age-related brittleness in rubber or plastic hoses.
  • Loose or leaking fittings reducing system pressure.       
  • External damage from abrasion or heat exposure.

When these parts fail, you may notice fuel odours, leaks, poor idling, or difficulty refuelling — all signs your Porsche’s fuel system needs attention.

Why Replace Fuel Lines and Hoses?

Replacing ageing or damaged lines and hoses ensures safe, efficient fuel flow and helps prevent leaks, vapour loss, and performance issues. Our precision-fit fuel lines and breather hoses are engineered to restore reliability while meeting modern material and performance standards.

Key Benefits:
  • Restores proper fuel flow and vapour control.
  • Prevents fuel leaks, odours, and emissions faults.
  • Improves safety and engine performance.
  • Constructed from modern, fuel-resistant materials.
  • Direct-fit installation for Porsche models across all generations.
  • Ideal for maintenance, restoration, and upgrades.

Proper maintenance ensures your Porsche’s fuel system remains clean, safe, and efficient — exactly as its performance heritage demands.

Highlights:
  • Comprehensive selection of Porsche fuel lines and breather hoses.
  • Precision-engineered for accurate fit and durability.
  • Resistant to ethanol, heat, and corrosion.
  • Supports stable fuel pressure and emissions control.
  • Compatible with classic and modern Porsche models.
  • Ideal for rebuilds, performance tuning, and preventive maintenance.

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