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Porsche > 911 & 912 (1965-1989) > 911 1978-1983 3.0L / SC > Engine Rebuild Parts > Fuel System Parts >

Fuel Lines & Breather Hoses

Fuel Lines & Breather Hoses

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DISPLAYING 33 to 48 (of 50 products)
1 2 3 4
Fuel pressure line. Porsche 911 74-77 - 91135606603, 91135606613
1
Fuel pressure line. Porsche 911 74-77
Special Order item
91135606613
Product Information
Product Information
Fuel pressure line.

porsche

Fits:
Porsche 911 2.7 1974-77
Porsche 911 2.7S 1974-75
Porsche 911 3.0 Carrera 1976-77
Porsche 930 Turbo 3.0L 75-76

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91135606613
91135606603
91135606613

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Fuel pressure line. Porsche 911 77-80 - 91135606610, 91135606606, 91135606616
2
Fuel pressure line. Porsche 911 77-80
Special Order item
91135606616
Product Information
Product Information
Fuel pressure line.

porsche

Fits:
Porsche 911 1977-80

Click 'Zoom in' for large parts diagram.
Diagram ref no 1

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91135606616
91135606610
91135606606
91135606616

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Fuel return line. Porsche 911 77-83 - 91135606205, 91135606215
2
Fuel return line. Porsche 911 77-83
Special Order item
91135606215
Product Information
Product Information
Fuel return line. Porsche 911 77-83

porsche

Fits:
Porsche 911 1977-83

Click 'Zoom in' for large parts diagram.
Diagram ref no 3

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Related, superseded, cross reference or alternative numbers for comparison.

91135606215
91135606205
91135606215

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Fuel return line. Porsche 911 77-83 - 91135606205, 91135606215
2
Fuel return line. Porsche 911 77-83
91135606215/1
Product Information
Product Information
Fuel return line. Porsche 911 77-83

Fits:
Porsche 911 1977-83

Click 'Zoom in' for large parts diagram.
Diagram ref no 3

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91135606215
91135606205
91135606215

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Fuel tank pressure line. Porsche 911 1977-79 / 930 Turbo - 91135606607, 91135606612
4
Fuel tank pressure line. Porsche 911 1977-79 / 930 Turbo
Special Order item
91135606612
Product Information
Product Information
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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Related, superseded, cross reference or alternative numbers for comparison.

91135606612
91135606607
91135606612

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Fuel tank pressure line. Porsche 911 1980>> - 91135606608, 91135606615
4
Fuel tank pressure line. Porsche 911 1980>>
Special Order item
91135606615
Product Information
Product Information
Fuel Tank Pressure Line

porsche

Fits:
Porsche 911 SC 1980-83
Porsche 911 Carrera 1984-89

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

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91135606615
91135606608
91135606615

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Fuel tank pressure line. Porsche 911 1980>> - 91135606608, 91135606615
4
Fuel tank pressure line. Porsche 911 1980>>
91135606615/1
Product Information
Product Information
Fuel Tank Pressure Line

Fits:
Porsche 911 SC 1980-83
Porsche 911 Carrera 1984-89

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

Related reference numbers
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91135606615
91135606608
91135606615

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Fuel tank return line. Porsche 911 - 91135606207, 91135606213, 91135606214
4
Fuel tank return line. Porsche 911
Special Order item
91135606213
Product Information
Product Information
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

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Diagram ref no 38

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91135606213
91135606207
91135606213
91135606214

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Fuel tank return line. Porsche 911 1980>> - 91135606208, 91135606214, 91135606216
4
Fuel tank return line. Porsche 911 1980>>
Special Order item
91135606216
Product Information
Product Information
Fuel Tank Return Line

porsche

Fits:
Porsche 911 SC 1980-83
Porsche 911 Carrera 1984-89

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

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91135606216
91135606208
91135606214
91135606216

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Grommet fuel line. Porsche 911 - 91135620203
3
Grommet fuel line. Porsche 911
Special Order item
91135620203
Product Information
Product Information
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
91135620203

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Hose 4,4 x 9,5mm Sold by the Meter. Porsche 911 / 928 / 928S / 928 S2 - 99918116750
1
Hose 4,4 x 9,5mm Sold by the Meter. Porsche 911 / 928 / 928S / 928 S2
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.

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99918116750
99918116750

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Hose 4,4 x 9,5mm Sold by the Meter. Porsche 911 / 928 / 928S / 928 S2 - 99918116750 - PSU45
1
Hose 4,4 x 9,5mm Sold by the Meter. Porsche 911 / 928 / 928S / 928 S2
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.

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99918116750
99918116750

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Hose clip fuel pipe 17x9. Porsche 911 / 964 / 993 / 924 / 944 - PCG51219802, 99951219802
3
Hose clip fuel pipe 17x9. Porsche 911 / 964 / 993 / 924 / 944
Special Order item
PCG51219802
Product Information
Product Information
Hose clip fuel pipe - 17x9mm
Sold each

porsche

Fits:
Porsche 911 - 1974 to 1983
Porsche 964 - 1989 to 1994
Porsche 993 - 1994 to 1997
Porsche 924 - 1980 to 1985
Porsche 944 - 1982 to 1985
Porsche 968 - 1992 to 1995

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


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PCG51219802
PCG51219802
99951219802

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Overflow hose for fuel filler neck. Porsche 911 / 964 / 993 - 96420115300
2
Overflow hose for fuel filler neck. Porsche 911 / 964 / 993
Special Order item
96420115300
Product Information
Product Information
Overflow hose for fuel filler neck.

porsche

Fits:
Porsche 911 1978-89
Porsche 964 1989-94
Porsche 993 1994-98

Click 'Zoom in' for large parts diagram.
Diagram ref no 24

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96420115300
96420115300

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Overflow hose for fuel filler neck. Porsche 911 / 964 / 993 - 96420115300 - 8490-3
3
Overflow hose for fuel filler neck. Porsche 911 / 964 / 993
96420115300/1
Product Information
Product Information
Overflow hose for fuel filler neck.
The overflow hose provides a vent path for fuel vapours and excess pressure from the fuel filler neck to the tank vent/evaporative system, preventing pressure buildup and aiding smooth refuelling without backflow or spills.

Fits:
Porsche 911 1978 - 1989
Porsche 964 1989 - 1994
Porsche 993 1994 - 1998

Diagram ref no 24

The hose fits between the fuel filler neck and the fuel tank vent/overflow outlet, allowing controlled relief of fuel vapours and pressure during refuelling and normal operation. A compromised or deteriorated hose can lead to fuel vapour leaks, poor venting, fuel smell at the rear of the vehicle, or difficulty refuelling due to trapped pressure.

This OE Match hose offers a direct replacement solution for restoration, maintenance, or repair when the original hose shows signs of age or damage.

Function:
•  Ensures proper venting of fuel fumes and pressure from the filler neck
•  Maintains correct fuel system breather operation
•  Prevents fuel vapour leaks and associated odours
•  Durable, fuel-resistant construction for long service life

The fuel filler overflow/vent hose plays a small but important role in maintaining proper fuel system behaviour. A cracked, hardened, or leaking hose can cause fuel vapour smells, trapped pressure that makes refuelling difficult, and potential environmental or safety issues. Replacing it with an OE Match hose restores correct venting and refuelling behaviour while helping keep the fuel system sealed and odour free.

When to replace:
•  Visible cracking, swelling, or brittleness of the hose
•  Noticeable fuel vapour smell near filler area
•  Difficulty filling the tank (pressure backflow)
•  During restoration or fuel system servicing
•  If original hose shows age-related deterioration

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

96420115300
96420115300

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Protective sheath covering. Porsche 911
3
Protective sheath covering. Porsche 911
Special Order item
99961301740
Product Information
Product Information
Protective sheath covering. 

porsche

Fits:

Porsche 911 / 912 - 1965 to 1989
Porsche 914

Protective sheathing cover for fuel ventilation lines and wiring harness

Click 'Zoom in' for large parts diagram.
Diagram ref no 42

DISPLAYING 33 to 48 (of 50 products)
1 2 3 4
Also found on these pages
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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