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Fuel Lines & Breather Hoses

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DISPLAYING 33 to 48 (of 120 products)
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99918116850
Product Information
Product Information

Fuel Hose 12 x 19mm
Sold per metre

High-quality fuel hose designed for use across a wide range of Porsche fuel system applications, supplied per metre for maximum flexibility and precise fitment.

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 944S2 3.0L 16V 1989-91
  • 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

This hose is engineered to ensure safe and consistent fuel delivery between system components such as fuel tanks, pumps, filters, and injectors. Built to withstand fuel exposure, pressure, and engine bay temperatures, it provides reliable long-term performance.

Sold per metre, this hose allows you to cut the exact length required, making it ideal for maintenance, repair, or restoration projects. Manufactured to OEM standards for durability and correct specification.

Key Features

• Fuel hose suitable for various Porsche applications
• Part number 99918116850
• Sold per metre for custom length requirements
• Designed for fuel system use
• Resistant to fuel and heat exposure
• Flexible and durable construction
• OEM-style fit and performance

Function and Purpose

This fuel hose is an essential component of the fuel system.

It helps to:
• Transport fuel safely between components
• Maintain consistent fuel flow and pressure
• Ensure leak-free operation
• Support efficient engine performance
• Enable reliable fuel delivery under load

Why Replace Fuel Hoses

Over time, fuel hoses degrade due to exposure to heat and fuel.

Common issues include:
• Cracking or splitting
• Fuel leaks and safety risks
• Hardening and reduced flexibility
• Reduced fuel delivery efficiency

Replacing worn hoses ensures safe operation and restores optimal fuel system performance.



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Related, superseded, cross reference or alternative numbers for comparison.

99918116850
99918116850

The product you are viewing cross references to these numbers
99918116850/1
Product Information
Product Information

Fuel Hose 12 x 19mm
Sold per metre

High-quality fuel hose designed for use across a wide range of Porsche fuel system applications, supplied per metre for maximum flexibility and precise fitment.

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 944S2 3.0L 16V 1989-91
  • 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

This hose is engineered to ensure safe and consistent fuel delivery between system components such as fuel tanks, pumps, filters, and injectors. Built to withstand fuel exposure, pressure, and engine bay temperatures, it provides reliable long-term performance.

Sold per metre, this hose allows you to cut the exact length required, making it ideal for maintenance, repair, or restoration projects. Manufactured to OEM standards for durability and correct specification.

Key Features

• Fuel hose suitable for various Porsche applications
• Part number 99918116850
• Sold per metre for custom length requirements
• Designed for fuel system use
• Resistant to fuel and heat exposure
• Flexible and durable construction
• OEM-style fit and performance

Function and Purpose

This fuel hose is an essential component of the fuel system.

It helps to:
• Transport fuel safely between components
• Maintain consistent fuel flow and pressure
• Ensure leak-free operation
• Support efficient engine performance
• Enable reliable fuel delivery under load

Why Replace Fuel Hoses

Over time, fuel hoses degrade due to exposure to heat and fuel.

Common issues include:
• Cracking or splitting
• Fuel leaks and safety risks
• Hardening and reduced flexibility
• Reduced fuel delivery efficiency

Replacing worn hoses ensures safe operation and restores optimal fuel system performance.



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

99918116850
99918116850

The product you are viewing cross references to these numbers
Special Order item
91120117102
Product Information
Product Information
Fuel hose connector.

porsche

Fits:
Porsche 911 (1974-1983)
Porsche 930 Turbo (1975-1977)

Click 'Zoom in' for large parts diagram.
Diagram ref no 12

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

91120117102
91120117102

The product you are viewing cross references to these numbers
91120117102/1
Product Information
Product Information
Fuel hose connector.

oematch

Fits:
Porsche 911 (1974-1983)
Porsche 930 Turbo (1975-1977)

Click 'Zoom in' for large parts diagram.
Diagram ref no 12

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

91120117102
911.201.171.02
91120117102

The product you are viewing cross references to these numbers
93035606204/1
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Product Information

Fuel Return Hose 

High-quality replacement fuel return hose designed for Porsche 911 turbo (930) models.

This hose is a vital component of the fuel system, responsible for returning excess fuel from the engine back to the fuel tank. By maintaining proper fuel circulation and pressure balance, it ensures smooth engine operation, consistent fuel delivery, and overall system reliability.

Fits:

  • Porsche 911 1978-1989 3.3L Turbo (930)

Diagram ref no 23

Manufactured to OEM specifications, this fuel return hose offers precise fitment along with excellent resistance to fuel, heat, and pressure—making it ideal for maintenance, repair, or restoration of classic Porsche 911 Turbo fuel systems.

Key Features

• Direct replacement fuel return hose
• Suitable for Porsche 911 Turbo (930) models
• Maintains proper fuel circulation and pressure balance
• Resistant to fuel, heat, and pressure
• OEM-style fit and performance
• Ideal for maintenance and classic restoration

Function and Purpose

This hose is an essential part of the fuel system.

It helps to:

• Return excess fuel safely to the tank
• Maintain stable fuel pressure
• Prevent fuel system overpressure
• Support efficient fuel circulation

Why Replace Your Fuel Return Hose

Fuel hoses degrade over time due to exposure to heat, pressure, and fuel.

Common issues include:

• Cracking or hardening of the hose
• Fuel leaks or seepage
• Pressure imbalance within the system
• Reduced reliability and performance

Replacing the hose restores safe and consistent fuel system operation.



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

93035606204
93035606204
93035606201

The product you are viewing cross references to these numbers
Special Order item
93035606204
Product Information
Product Information
Fuel hose, Return line.

porsche

Fits:
Porsche 930 Turbo 1978-89

Click 'Zoom in' for large parts diagram.
Diagram ref no 23

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

93035606204
93035606204
93035606201

The product you are viewing cross references to these numbers
Special Order item
91135608702
Product Information
Product Information
Fuel hose.

porsche

Fits:
Porsche 911 SC 1980-83

Click 'Zoom in' for large parts diagram.
Diagram ref no 2

Related reference numbers
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91135608702
91135608701
91135608700
91135608702

The product you are viewing cross references to these numbers
Special Order item
91135608902
Product Information
Product Information
Fuel hose.

porsche

Fits:
Porsche 911 SC 1980-83

Click 'Zoom in' for large parts diagram.
Diagram ref no 4

Related reference numbers
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91135608902
91135608901
91135608902

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Special Order item
91111009313
Product Information
Product Information
Fuel injection line - Cylinders 1, 2 and 3
Sold each - 3 required per car

Fits:

Porsche 911 2.7ltr / 3.0ltr - 1974 to 1980

Diagram ref no 50



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

91111009313
91111009311
91111009313

The product you are viewing cross references to these numbers
91111009313/1
Product Information
Product Information
Fuel injection line - Cylinders 1, 2 and 3
Sold each - 3 required per car

Fits:

Porsche 911 2.7ltr / 3.0ltr - 1974 to 1980

Diagram ref no 50



Related reference numbers
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91111009313
91111009311
91111009313

The product you are viewing cross references to these numbers
Special Order item
91111009314
Product Information
Product Information
Fuel injection line - Cylinders 4, 5 and 6
Sold each - 3 required per car

Fits:

Porsche 911 2.7ltr / 3.0ltr - 1974 to 1980

Diagram ref no 50



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

91111009314
91111009314
91111009312

The product you are viewing cross references to these numbers
91111009314/1
Product Information
Product Information
Fuel injection line - Cylinders 4, 5 and 6
Sold each - 3 required per car

Fits:

Porsche 911 2.7ltr / 3.0ltr - 1974 to 1980

Diagram ref no 50



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

91111009314
91111009314
91111009312

The product you are viewing cross references to these numbers
Special Order item
91111009300
Product Information
Product Information

Fuel Injector Line – Metering Head to Injector 

High-quality replacement fuel injector line designed for Porsche 911 T and K-Jetronic (CIS) models, connecting the fuel metering head directly to the fuel injectors.

This precision-engineered line is a critical component of the Bosch CIS fuel injection system, delivering fuel under pressure from the metering head to each injector. Accurate fuel delivery through this line is essential for proper atomisation, engine efficiency, and smooth performance.

Fits:

  • Porsche 911 T-K 2.4L - 1972-73

Diagram ref no 28

Manufactured to OEM specifications, this injector line ensures exact fitment along with excellent resistance to fuel, heat, and high pressure—making it ideal for maintenance, repair, or restoration of classic Porsche 911 fuel systems.

Key Features

• Direct replacement fuel injector line
• Suitable for Porsche 911 T-K (CIS) models
• Connects fuel metering head to injectors
• Designed for high-pressure fuel delivery
• Resistant to fuel, heat, and pressure
• OEM-style fit and performance

Function and Purpose

This injector line is a vital part of the CIS fuel system.

It helps to:

• Deliver fuel from the metering head to the injectors
• Maintain consistent fuel pressure for precise injection
• Ensure correct fuel atomisation
• Support smooth engine performance and efficiency

Why Replace Your Fuel Injector Line

Injector lines are exposed to constant pressure and heat over time.

Common issues include:

• Internal or external leaks
• Corrosion or fatigue in the line
• Loss of fuel pressure accuracy
• Poor engine performance or misfiring

Replacing the line restores proper fuel delivery and system reliability.



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

91111009300
91111009300

The product you are viewing cross references to these numbers
91111009300/1
Product Information
Product Information

Fuel Injector Line – Metering Head to Injector 

High-quality replacement fuel injector line designed for Porsche 911 T and K-Jetronic (CIS) models, connecting the fuel metering head directly to the fuel injectors.

This precision-engineered line is a critical component of the Bosch CIS fuel injection system, delivering fuel under pressure from the metering head to each injector. Accurate fuel delivery through this line is essential for proper atomisation, engine efficiency, and smooth performance.

Fits:

  • Porsche 911 T-K 2.4L - 1972-73

Diagram ref no 28

Manufactured to OEM specifications, this injector line ensures exact fitment along with excellent resistance to fuel, heat, and high pressure—making it ideal for maintenance, repair, or restoration of classic Porsche 911 fuel systems.

Key Features

• Direct replacement fuel injector line
• Suitable for Porsche 911 T-K (CIS) models
• Connects fuel metering head to injectors
• Designed for high-pressure fuel delivery
• Resistant to fuel, heat, and pressure
• OEM-style fit and performance

Function and Purpose

This injector line is a vital part of the CIS fuel system.

It helps to:

• Deliver fuel from the metering head to the injectors
• Maintain consistent fuel pressure for precise injection
• Ensure correct fuel atomisation
• Support smooth engine performance and efficiency

Why Replace Your Fuel Injector Line

Injector lines are exposed to constant pressure and heat over time.

Common issues include:

• Internal or external leaks
• Corrosion or fatigue in the line
• Loss of fuel pressure accuracy
• Poor engine performance or misfiring

Replacing the line restores proper fuel delivery and system reliability.



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

91111009300
91111009300

The product you are viewing cross references to these numbers
91111002SET
Product Information
Product Information
Fuel injector lines set.

Fits:
Porsche 911T/E/S/RS 1969-1976

Diagram ref no: 5, 6, 7, 8, 9 and 10

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

91111002SET
91111002100
901.110.026.01
90111002601
901.110.026.02
90111002602
901.110.026.03
90111002603
901.110.026.04
90111002604
901.110.026.05
90111002605
901.110.026.06
90111002606
911.110.021.00
91111002100
911.110.022.00
91111002200
911.110.023.00
91111002300
911.110.024.00
91111002400
911.110.025.00
91111002500
911.110.026.00
91111002600

The product you are viewing cross references to these numbers
91111033300/1
Product Information
Product Information
Fuel line clamp.
This Fuel-Injector Pipe Bracket is a support bracket designed to secure the fuel injection or supply pipes on Porsche 911 models (1969–1977). It firmly anchors the injector lines in place, prevents vibration-induced wear, and ensures correct pipe routing for long-term system integrity.

Fits:
Porsche 911 1969 - 1977

Diagram ref no 11

Manufactured to match the original Porsche design, this bracket installs directly into the factory mounting points and provides durable, OE-type reliability.

Function: Secures injection or fuel supply pipe to cylinder head or injection pump assembly
 Position: Engine – fuel injection system / cylinder head area
 Benefits: Reinforces fuel line routing, minimizes vibration wear, and maintains proper alignment

Fuel-injection brackets are constantly exposed to engine vibration, heat, and stress. Over time, the original parts can become loose, corroded, or bent, leading to unstable pipe support or even potential fuel leaks.

Replace this bracket when:
  Performing a fuel-injection system service or rebuild
  You observe loose, vibrating, or misaligned injection lines
  The original bracket shows corrosion or distortion
  Re-installing injection plumbing after cylinder head or pump removal

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

91111033300
91111033300

The product you are viewing cross references to these numbers
DISPLAYING 33 to 48 (of 120 products)
<< 2 3 4 5 >>
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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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