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Porsche > 911 & 912 (1965-1989) > Engine Rebuild Parts > Fuel System Parts >

Fuel Lines & Breather Hoses

Fuel Lines & Breather Hoses

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Engine Fuel Line Kit for Porsche 911 3.2 Carrera 1984–1989 - 93011041104, 93011059507, 93011050902, 93011041103, 93011059505, 93011059506, 93011050901
5
Engine Fuel Line Kit for Porsche 911 3.2 Carrera 1984–1989
FUELLINESET91132.2
Product Information
Product Information
Engine Fuel Line Kit
3-Piece Fuel Line Set for Engine Drop Installation

Fits:
Porsche 911 3.2 Carrera 1984 – 1989

This is a 3-piece engine fuel line set for the Porsche 911 3.2 litre Carrera. The set includes the damper to regulator fuel line, regulator to return fuel line, and fuel filter to fuel rails line.

This set is intended for use when the engine is removed from the car, allowing easier access to the fuel line routing at the back of the engine.

The fuel lines connect key engine bay fuel system components including the fuel damper, fuel pressure regulator, return line, fuel filter, and fuel rails. Replacing these lines helps restore safe and reliable fuel delivery through the engine fuel system.

Functions
•  Replaces the 3 main engine fuel lines
•  Includes damper to regulator fuel line
•  Includes regulator to return fuel line
•  Includes fuel filter to rails line
•  Designed for engine drop installation
•  Helps restore reliable fuel delivery
•  Suitable for fuel system service and restoration

Why Replace This Set?
Original fuel lines can deteriorate over time due to age, heat, fuel exposure, vibration, and engine bay conditions. Worn or perished fuel lines can cause fuel smell, seepage, leaks, pressure loss, or fuel delivery issues. Replacing the 3 main lines together is a sensible maintenance step during an engine drop or fuel system overhaul.

Installation Note
This fuel line set is best suited for installation while the engine is out of the car. With the engine removed, the lines can be accessed from the rear of the engine, making replacement more straightforward. If replacing the lines while the engine remains in the car, additional parts are usually required because access to the filter to rails line typically requires removal of the auxiliary heater blower motor and plenum, air filter box with AFM attached, and right-hand side intake manifold. For in-car installation, use the fuel line kit that also includes right-hand intake manifold gaskets and intermediate flanges.

When to Use This Set
•  Engine drop is being carried out
•  Main engine fuel lines are old, cracked, leaking, or perished
•  Fuel smell is present in the engine bay
•  Preventive fuel system maintenance is being completed
•  Fuel line replacement is part of engine restoration
•  Fuel pressure or delivery issues are being investigated
•  Porsche 911 3.2 Carrera fuel system refurbishment is in progress.

Where it fits on the car
This set fits in the engine bay fuel system on Porsche 911 3.2 Carrera models. It services the fuel line routing between the fuel damper, fuel pressure regulator, return circuit, fuel filter, and fuel rails.

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

FUELLINESET91132.2
93011041104
93011059507
93011050902
93011041103
93011059505
93011059506
93011050901

The product you are viewing cross references to these numbers
Engine Fuel Line, Intake Gasket, Intermediate Flange & Fuel Filter Kit for Porsche 911 3.2 Carrera 1984–1989 - 93011041104, 93011059507, 93011050902, 92811025306, 92811025307, 93011041103, 93011059505, 93011059506, 93011019714, 93011050901
6
Engine Fuel Line, Intake Gasket, Intermediate Flange & Fuel Filter Kit for Porsche 911 3.2 Carrera 1984–1989
FUELLINESET91132.1
Product Information
Product Information
Engine Fuel Line, Intake Gasket, Intermediate Flange & Fuel Filter Kit
For in-car fuel line replacement without engine drop

Fits:
Porsche 911 3.2 Carrera 1984 – 1989

Complete engine fuel line service kit for Porsche 911 3.2 Carrera models from 1984 to 1989. This kit is designed for replacing the main engine fuel lines while the engine remains in the car and includes OE Match, OE Porsche, and MAHLE components required to complete the job correctly.

This is a complete engine fuel line replacement kit for the Porsche 911 3.2 litre Carrera. The kit includes the 3 main engine fuel lines, right-hand side intake manifold gaskets, intermediate flanges, and fuel filter.

 It is ideal for owners or workshops replacing the fuel lines without carrying out a full engine drop.

What this kit does
The kit replaces the key engine bay fuel lines that connect the fuel damper, fuel pressure regulator, return line, fuel filter, and fuel rails. It also includes the intake gaskets and intermediate flanges required when removing and refitting the right-hand intake manifold for access.

Functions:
•  Replaces the 3 main engine fuel lines
•  Includes damper to regulator fuel line
•  Includes regulator to return fuel line
•  Includes fuel filter to rails line
•  Includes right-hand intake manifold gaskets
•  Includes intermediate flanges for intake refitting
•  Includes replacement MAHLE fuel filter
•  Suitable for in-car fuel line replacement
•  Ideal for Porsche 911 3.2 Carrera fuel system service.

Why Use This Kit?
Fuel lines on classic Porsche 911 3.2 Carrera models can deteriorate with age, heat, fuel exposure, and engine bay conditions. Old or perished fuel lines can become a safety concern and may lead to fuel smell, leaks, pressure loss, or poor fuel system reliability. This kit brings together the main components required to replace the engine fuel lines properly, especially when carrying out the work with the engine still installed in the car.

Installation Note
Replacement of these 3 fuel lines is often carried out during an engine drop, but they can also be replaced with the engine in place. For in-car replacement, access is improved by removing the auxiliary heater blower motor and plenum, the air filter box with AFM attached, and the right-hand side intake manifold.

A small mirror can be useful when working in the forward area of the engine near the fuel pressure regulator.

When to Use This Kit
•  Fuel lines are old, cracked, leaking, or perished
•  Fuel smell is present in the engine bay
•  Preventive fuel system maintenance is being carried out
•  Fuel line replacement is being done without engine removal
•  Right-hand intake manifold is being removed for access
•  Porsche 911 3.2 Carrera fuel system restoration is in progress.

Where it fits on the car
This kit fits in the engine bay fuel system on Porsche 911 3.2 Carrera models. It services the fuel line routing between the damper, regulator, return line, fuel filter, and fuel rails, with supporting intake components for right-hand manifold removal and refitting.

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

FUELLINESET91132.1
93011041104
93011059507
93011050902
92811025306
92811025307
93011041103
93011059505
93011059506
93011019714
93011050901

The product you are viewing cross references to these numbers
Fuel injection line kit. Porsche 911 1974-80 - 91111009311, 91111009313, 91111009312, 91111009314
2
Fuel injection line kit. Porsche 911 1974-80
91111009313/1KIT
Product Information
Product Information
Fuel injection line kit - Cylinders 1, 2 ,3 and 4,5,6
Sold as a set of 6 injection lines

Fits:

Porsche 911 2.7ltr / 3.0ltr - 1974 to 1980

Kit contains
3 x Injection line Cylinder 1, 2 and 3
3 x Injection line Cylinder 4, 5 and 6
12 x Copper sealing washer 

Diagram ref no 50 and 51



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

91111009313
91111009311
91111009313
91111009312
91111009314

The product you are viewing cross references to these numbers
Fuel Injector Line and Washer Kit. Porsche 911 T-K - 91111009300 - PKLA29
2
Fuel Injector Line and Washer Kit. Porsche 911 T-K
91111009300/1KIT
Product Information
Product Information

Fuel Injector Line Kit – 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 and 29

Kit Includes
6 x Fuel injector line
12 x Copper sealing washer

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
Banjo Bolt - K and L-Jetronic injection line. Porsche 911 / 911 turbo / 964 turbo / 924 / 944 turbo / 928 - 91111089900
2
Banjo Bolt - K and L-Jetronic injection line. Porsche 911 / 911 turbo / 964 turbo / 924 / 944 turbo / 928
Special Order item
91111089900
Product Information
Product Information

Fuel Banjo Bolt  – K & L Jetronic Fuel System Connection
Sold each

High-quality fuel banjo bolt designed for Porsche models equipped with K-Jetronic and L-Jetronic fuel injection systems.

Fits:

  • Porsche 911 1972-73 2.4L T-K
  • 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 911 1978-1989 3.3L Turbo (930)
  • Porsche 964 (911) TURBO 3.3L 1991-93
  • Porsche 964 (911) TURBO 3.6L 1991-93
  • 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 944 Turbo 2.5L 8V 1985-88
  • Porsche 944 Turbo 2.5L 8V 1989-91
  • Porsche 944 Turbo S 2.5L 8V 1988
  • Porsche 928 4.5L 1978-82
  • Porsche 928S 4.7L 1981-83
  • Porsche 928S2 4.7L 1984-86

Diagram ref no 52

This essential fastening component is used to securely connect fuel lines to key parts of the fuel system, including the injection pump, fuel injectors (injection valves), and fuel pump. It ensures proper sealing and reliable fuel delivery across multiple connection points within the system.

Depending on the specific Porsche model and configuration, varying quantities of banjo bolts may be required for hose swivel connections. This component is also commonly supplied as part of a complete fitting set.

Important: This banjo bolt is not suitable for vehicles equipped with LH-Jetronic systems.

Key Features

• Fuel banjo bolt for K-Jetronic and L-Jetronic systems
• Suitable for multiple fuel system connection points
• Connects fuel lines to pump, injectors, and injection system
• Ensures secure, leak-free sealing
• OEM-style fit and specification
• Durable construction for long-term reliability

Function and Purpose

This banjo bolt is a critical fastening component within the fuel injection system.

It helps to:
• Secure fuel line connections across the system
• Maintain correct fuel pressure and flow
• Ensure leak-free sealing at connection points
• Support reliable fuel delivery to engine components
• Enable safe and efficient fuel system operation

Why Replace Banjo Bolts

Over time, banjo bolts can wear or become compromised.

Common issues include:
• Fuel leaks at connection points
• Thread wear or damage
• Corrosion from fuel exposure
• Reduced sealing efficiency

Replacing worn bolts ensures safe operation and maintains proper fuel system performance.

Vehicle Compatibility

Suitable for:
• Porsche models equipped with K-Jetronic fuel injection
• Porsche models equipped with L-Jetronic fuel injection

Not suitable for:
• Porsche models with LH-Jetronic systems



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

91111089900
91111089900

The product you are viewing cross references to these numbers
Banjo Bolt - K and L-Jetronic injection line. Porsche 911 / 911 turbo / 964 turbo / 924 / 944 turbo / 928 - 91111089900 - PHSM8
4
Banjo Bolt - K and L-Jetronic injection line. Porsche 911 / 911 turbo / 964 turbo / 924 / 944 turbo / 928
91111089900/1
Product Information
Product Information

Fuel Banjo Bolt  – K & L Jetronic Fuel System Connection
Sold each

High-quality fuel banjo bolt designed for Porsche models equipped with K-Jetronic and L-Jetronic fuel injection systems.

Fits:

  • Porsche 911 1972-73 2.4L T-K
  • 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 911 1978-1989 3.3L Turbo (930)
  • Porsche 964 (911) TURBO 3.3L 1991-93
  • Porsche 964 (911) TURBO 3.6L 1991-93
  • 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 944 Turbo 2.5L 8V 1985-88
  • Porsche 944 Turbo 2.5L 8V 1989-91
  • Porsche 944 Turbo S 2.5L 8V 1988
  • Porsche 928 4.5L 1978-82
  • Porsche 928S 4.7L 1981-83
  • Porsche 928S2 4.7L 1984-86

Diagram ref no 12

This essential fastening component is used to securely connect fuel lines to key parts of the fuel system, including the injection pump, fuel injectors (injection valves), and fuel pump. It ensures proper sealing and reliable fuel delivery across multiple connection points within the system.

Depending on the specific Porsche model and configuration, varying quantities of banjo bolts may be required for hose swivel connections. This component is also commonly supplied as part of a complete fitting set.

Important: This banjo bolt is not suitable for vehicles equipped with LH-Jetronic systems.

Key Features

• Fuel banjo bolt for K-Jetronic and L-Jetronic systems
• Suitable for multiple fuel system connection points
• Connects fuel lines to pump, injectors, and injection system
• Ensures secure, leak-free sealing
• OEM-style fit and specification
• Durable construction for long-term reliability

Function and Purpose

This banjo bolt is a critical fastening component within the fuel injection system.

It helps to:
• Secure fuel line connections across the system
• Maintain correct fuel pressure and flow
• Ensure leak-free sealing at connection points
• Support reliable fuel delivery to engine components
• Enable safe and efficient fuel system operation

Why Replace Banjo Bolts

Over time, banjo bolts can wear or become compromised.

Common issues include:
• Fuel leaks at connection points
• Thread wear or damage
• Corrosion from fuel exposure
• Reduced sealing efficiency

Replacing worn bolts ensures safe operation and maintains proper fuel system performance.

Vehicle Compatibility

Suitable for:
• Porsche models equipped with K-Jetronic fuel injection
• Porsche models equipped with L-Jetronic fuel injection

Not suitable for:
• Porsche models with LH-Jetronic systems



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

91111089900
91111089900

The product you are viewing cross references to these numbers
Banjo bolt fuel injection pump. Porsche 911 72-77 - 91110891001, 91110891000
5
Banjo bolt fuel injection pump. Porsche 911 72-77
Special Order item
91110891001
Product Information
Product Information
Banjo bolt fuel injection pump.
Sold each.

porsche

Fits:
Porsche 911 1972-77

Click 'Zoom in' for large parts diagram.
Diagram ref no 34



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

91110891001
91110891001
91110891000

The product you are viewing cross references to these numbers
Banjo bolt. Porsche 911 / 911 turbo - 99913401802
3
Banjo bolt. Porsche 911 / 911 turbo
Special Order item
99913401802
Product Information
Product Information
Banjo bolt. 

porsche

Fits:
Porsche 911 - 1965 to 1989


Click 'Zoom in' for large parts diagram.
Diagram ref no 36



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

99913401802
99913401802

The product you are viewing cross references to these numbers
Banjo Fitting M12 for Fuel Pump. Porsche 911 >>1968 - 90110858000 - PRSN12
3
Banjo Fitting M12 for Fuel Pump. Porsche 911 >>1968
90110858000/1
Product Information
Product Information

M12 Fuel Banjo Fitting – HARDI Fuel Pump

High-quality M12 banjo fitting designed for the HARDI fuel pump used in early Porsche 911 models up to 1968.

Fits:

  • Porsche 911 1965-1968 2.0L 

Diagram ref no 19 

This fitting provides a secure connection between the fuel line and the HARDI pump, ensuring proper fuel delivery from the tank to the engine. As part of the early carburettor-based fuel system, it plays a key role in maintaining consistent fuel flow and reliable engine performance.

Manufactured to OEM specifications, this banjo fitting offers precise fitment and dependable sealing, making it ideal for restoration, repair, or maintenance of classic Porsche 911 fuel systems.

Key Features

• M12 banjo fitting for HARDI fuel pump
• Suitable for Porsche 911 (up to 1968)
• Designed for early carburettor fuel systems
• Ensures secure, leak-free fuel connection
• OEM-style fit and performance
• Durable construction for long-term reliability

Function and Purpose

This banjo fitting is a critical part of the fuel delivery system.

It helps to:

• Connect fuel lines to the HARDI fuel pump
• Maintain correct fuel flow and pressure
• Ensure leak-free sealing under operation
• Support reliable fuel supply to the engine

Why Replace Banjo Fittings

With age, fuel system fittings can degrade or become compromised.

Common issues include:

• Fuel leaks at connection points
• Worn or damaged sealing surfaces
• Corrosion from long-term use
• Reduced fuel delivery efficiency

Replacing worn fittings ensures safe operation and consistent fuel flow.



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

90110858000
90110858000

The product you are viewing cross references to these numbers
Banjo fitting M14 to M10 90° tube. Porsche 911 69-75 - 90135604900, 8081.90.0800
2
Banjo fitting M14 to M10 90° tube. Porsche 911 69-75
90135604900/2
Product Information
Product Information
Banjo Fitting M14 to M10 90° Tube.

oematch

Fits:
Porsche 911 1969-75

M14 Banjo to M10 90° Hose barb, Secure using either hose clamp or crimp in place with a ferrule. Can be used on fuel or oil applications. Used at the the fuel Tank with MFI Cars in conjunction with an M14 Banjo Bolt.

Click 'Zoom in' for large parts diagram.
Diagram ref no 7

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

90135604900
90135604900
8081.90.0800

The product you are viewing cross references to these numbers
Banjo Fitting M8 for Solex Carburettor. Porsche 911 1965-68 - 90110890200 - PRSN8
3
Banjo Fitting M8 for Solex Carburettor. Porsche 911 1965-68
90110890200/1
Product Information
Product Information

M8 Fuel Banjo Fitting – Solex Carburettor 
Sold each 

High-quality M8 banjo fitting designed for the Solex carburettor used in early Porsche 911 models up to 1968.

Fits:

  • Porsche 911 1965-1968 2.0L

Diagram ref no 40 

This fitting provides a secure connection between the fuel line and carburettor, ensuring proper fuel delivery into the engine. As part of the early carburettor-based fuel system, it plays a crucial role in maintaining consistent fuel flow and engine performance.

Manufactured to OEM specifications, this banjo fitting ensures precise fitment and dependable sealing, making it ideal for restoration, repair, or maintenance of classic Porsche 911 fuel systems.

Key Features

• M8 banjo fitting for Solex carburettor
• Suitable for Porsche 911 (up to 1968)
• Designed for early carburettor fuel systems
• Ensures secure, leak-free fuel connection
• OEM-style fit and performance
• Durable construction for long-term reliability

Function and Purpose

This banjo fitting is a critical component within the carburettor fuel system.

It helps to:
• Connect fuel lines directly to the Solex carburettor
• Maintain consistent and controlled fuel flow
• Ensure leak-free sealing under operating conditions
• Support efficient fuel delivery to the engine

Why Replace Banjo Fittings

Over time, fuel fittings can deteriorate or fail.

Common issues include:
• Fuel leaks at carburettor connections
• Damaged or worn sealing faces
• Corrosion due to age and fuel exposure
• Reduced fuel delivery efficiency

Replacing worn fittings ensures safe operation and optimal performance.



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

90110890200
90110890200

The product you are viewing cross references to these numbers
Braided Breather Hose 12 x 17mm for Fuel Tank Ventilation. Porsche 911 / 924 / 944 - N0203621, N 0203621 - PKS12T
2
Braided Breather Hose 12 x 17mm for Fuel Tank Ventilation. Porsche 911 / 924 / 944
N0203621/1
Product Information
Product Information

12 x 17mm Braided Fuel Tank Breather Hose – Fuel Tank Ventilation
Sold per metre

High-quality 12 x 17mm braided fuel tank breather hose designed for use in fuel tank ventilation systems across a wide range of vehicles.

This hose is specifically engineered to safely transport fuel vapours, maintaining proper tank ventilation and preventing pressure build-up within the fuel system. The braided outer layer provides added durability and protection while retaining flexibility for easy routing.

Fits:

  • 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 924 2.0L 1980-85
  • Porsche 924 Turbo 2.0L 1982-84
  • Porsche 924 Carrera GTS 2.0L 1982
  • Porsche 924S 2.5L 1986-87
  • Porsche 924S 2.5L 1988
  • Porsche 944 2.5L 8V 1982-87
  • Porsche 944 2.7L 8V 1988-89
  • Porsche 944S 2.5L 16V 1987-88
  • Porsche 944S2 3.0L 16V 1989-91
  • Porsche 944 Turbo 2.5L 8V 1985-88
  • Porsche 944 Turbo 2.5L 8V 1989-91
  • Porsche 944 Turbo S 2.5L 8V 1988

Diagram ref no 39

Sold per metre, this hose allows for precise length requirements, making it ideal for maintenance, repair, or restoration of fuel tank breather and ventilation systems.

Key Features

• 12mm internal diameter, 17mm outer diameter
• Braided outer layer for durability and protection
• Designed for fuel tank breather and ventilation systems
• Suitable for fuel vapour transport
• Sold per metre for custom length applications
• Flexible and easy to install
• OEM-style appearance and performance

Function and Purpose

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

It helps to:
• Vent fuel vapours safely from the tank
• Prevent pressure build-up within the fuel system
• Maintain correct tank ventilation
• Support efficient fuel system operation
• Reduce risk of fuel odours and vapour leaks

Why Replace Breather Hoses

Over time, breather hoses can degrade due to fuel vapours and heat.

Common issues include:
• Cracking or splitting
• Hardening and reduced flexibility
• Fuel vapour leaks
• Blocked or restricted airflow

Replacing worn hoses ensures proper ventilation and safe system operation.



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

N0203621
N0203621
N 0203621

The product you are viewing cross references to these numbers
Braided Fuel Hose (7.3mm ID, 13.5mm OD) - Sold by the Metre - for Porsche 356 / 911 Carrera / 912 / 914 - 99918003050, 9991800305A - 0895517313
1
Braided Fuel Hose (7.3mm ID, 13.5mm OD) - Sold by the Metre - for Porsche 356 / 911 Carrera / 912 / 914
9991800305A/1
Product Information
Product Information

Braided Fuel Hose (Sold by the Metre) - 7.3mm Internal Diameter / 13.5mm Outer Diameter. 

This high-quality braided fuel hose is designed for multiple uses within the fuel system of various vehicles. It offers extremely low fuel permeability, excellent heat resistance, and high flexibility, making it a reliable choice for demanding applications.

Fits:
Porsche 356 1950-65
Porsche 911 Carrera 1965-1977 
Porsche 912 1967-69
Porsche 914 1970-76 

Comparable to Porsche part number(s): 99918003050 & 9991800305A

Specifications:
Inner Diameter (ID): 7.3mm
Outer Diameter (OD): 13.5mm 
Material: FPM/ECO/AR/ECO (Type 3E) – Compliant with DIN 73379-1
Complies With: EU End-of-Life Vehicles Directive

NOTE: This product is not suitable for use in fuel tanks, or for gear and/or engine oils. Always follow the manufacturer's specifications regarding operating temperatures, especially for high-performance engines exposed to extreme heat.



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

9991800305A
99918003050
9991800305A

The product you are viewing cross references to these numbers
Braided Fuel Hose (9.3mm ID, 15.3mm OD) - Sold by the Metre - for Porsche 911 Carrera & Turbo / 914 / 924 / 928 - N0203591, PCG020359A - 080895519315
1
Braided Fuel Hose (9.3mm ID, 15.3mm OD) - Sold by the Metre - for Porsche 911 Carrera & Turbo / 914 / 924 / 928
PCG020359A/1
Product Information
Product Information

Braided Fuel Hose (Sold by the Metre) - 9.3mm Internal Diameter / 15.3mm Outer Diameter. 

This high-quality braided fuel hose is designed for multiple uses within the fuel system of various vehicles. It offers extremely low fuel permeability, excellent heat resistance, and high flexibility, making it a reliable choice for demanding applications.

Fits:
Porsche 911 Carrera 1965-89
Porsche 911 Turbo (930) 1975-89 
Porsche 914 1970-76
Porsche 924 1976-85
Porsche 928 1978-91

Comparable to Porsche part number(s): N0203591 & PCG020359A

Specifications:

Inner Diameter (ID): 9.3mm
Outer Diameter (OD): 15.3mm 
Material: FPM/ECO/AR/ECO (Type 3E) – Compliant with DIN 73379-1
Complies With: EU End-of-Life Vehicles Directive

NOTE: This product is not suitable for use in fuel tanks, or for gear and/or engine oils. Always follow the manufacturer's specifications regarding operating temperatures, especially for high-performance engines exposed to extreme heat.



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

PCG020359A
N0203591
PCG020359A

The product you are viewing cross references to these numbers
Braided Fuel Hose 4.5mm Sold by the Metre. Porsche 911 1965-73 - 99918003550, 9991800355A
2
Braided Fuel Hose 4.5mm Sold by the Metre. Porsche 911 1965-73
Special Order item
9991800355A
Product Information
Product Information

4.5mm Braided Fuel Hose
Sold per metre

High-quality 4.5mm braided fuel hose designed for Porsche 911 models from 1965 to 1973.

This classic-style braided hose is used within the fuel system, particularly for connections between the fuel pump and carburettors, ensuring safe and reliable fuel delivery. The external braid provides additional strength and protection, while maintaining the correct period-correct appearance for early Porsche engine bays.

Fits:

  • Porsche 911 1965-1968 2.0L / 912 SWB (F)
  • Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)

Diagram ref no 8

Sold per metre, this hose allows you to cut to the exact length required for your installation, making it ideal for maintenance, repair, or full restoration projects.

Key Features

• 4.5mm internal diameter fuel hose
• Braided outer layer for strength and protection
• Suitable for Porsche 911 (1965–1973)
• Ideal for fuel pump and carburettor connections
• Sold per metre for custom fitment
• OEM-style appearance for classic restorations
• Durable and flexible construction

Function and Purpose

This braided fuel hose is a critical part of the fuel delivery system.

It helps to:
• Transport fuel from pump to carburettors
• Maintain safe and consistent fuel flow
• Withstand engine bay conditions and pressure
• Provide additional protection with braided outer layer
• Ensure reliable engine performance

Why Replace Fuel Hoses

Over time, fuel hoses can deteriorate due to heat and fuel exposure.

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

Replacing old hoses ensures safe operation and proper fuel system performance.



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

9991800355A
99918003550
9991800355A

The product you are viewing cross references to these numbers
Braided Fuel Hose 4.5mm Sold by the Metre. Porsche 911 1965-73 - 99918003550, 9991800355A - PKS59T
2
Braided Fuel Hose 4.5mm Sold by the Metre. Porsche 911 1965-73
9991800355A/1
Product Information
Product Information

4.5mm Braided Fuel Hose
Sold per metre

High-quality 4.5mm braided fuel hose designed for Porsche 911 models from 1965 to 1973.

This classic-style braided hose is used within the fuel system, particularly for connections between the fuel pump and carburettors, ensuring safe and reliable fuel delivery. The external braid provides additional strength and protection, while maintaining the correct period-correct appearance for early Porsche engine bays.

Fits:

  • Porsche 911 1965-1968 2.0L / 912 SWB (F)
  • Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)

Diagram ref no 8

Sold per metre, this hose allows you to cut to the exact length required for your installation, making it ideal for maintenance, repair, or full restoration projects.

Key Features

• 4.5mm internal diameter fuel hose
• Braided outer layer for strength and protection
• Suitable for Porsche 911 (1965–1973)
• Ideal for fuel pump and carburettor connections
• Sold per metre for custom fitment
• OEM-style appearance for classic restorations
• Durable and flexible construction

Function and Purpose

This braided fuel hose is a critical part of the fuel delivery system.

It helps to:
• Transport fuel from pump to carburettors
• Maintain safe and consistent fuel flow
• Withstand engine bay conditions and pressure
• Provide additional protection with braided outer layer
• Ensure reliable engine performance

Why Replace Fuel Hoses

Over time, fuel hoses can deteriorate due to heat and fuel exposure.

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

Replacing old hoses ensures safe operation and proper fuel system performance.



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

9991800355A
99918003550
9991800355A

The product you are viewing cross references to these numbers
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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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