Enter your VAT number here and click Verify:
Your details have been verified. VAT number registered to:
,
.
Your order will now be zero rated for VAT purposes. We reserve the right to verify these details after your order request has been made and reinstate VAT if required.
Your VAT details were not recognised or were invalid. Your VAT number must be matched to your Billing Country as specified above. This is currently specified as . You do not need to enter the country code part of your VAT number as this has already been selected in your billing address details above.
The VAT number checking service is currently offline. Please supply your VAT details within the comments or special instructions field below and we will apply a VAT discount after placing your order request.
Fuel Lines & Breather Hoses
- 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 1975-1977 3.0L Turbo (930)
- Porsche 911 1978-1989 3.3L Turbo (930)
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
The product you are viewing cross references to these numbers
- 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
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
The product you are viewing cross references to these numbers
- 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

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
The product you are viewing cross references to these numbers
- 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)

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
The product you are viewing cross references to these numbers
- 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)
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
The product you are viewing cross references to these numbers
- Porsche 911 1978-1989 3.3L Turbo (930)

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
The product you are viewing cross references to these numbers
- Porsche 911 1978-1989 3.3L Turbo (930)
Fits:
Porsche 911 SC 1980-83
Click 'Zoom in' for large parts diagram.
Diagram ref no 2
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
91135608702
The product you are viewing cross references to these numbers
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 911 1978-1983 3.0L / SC

Fits:
Porsche 911 SC 1980-83
Click 'Zoom in' for large parts diagram.
Diagram ref no 4
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
91135608902
The product you are viewing cross references to these numbers
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 911 1978-1983 3.0L / SC
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
The product you are viewing cross references to these numbers
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 911 1978-1983 3.0L / SC
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
The product you are viewing cross references to these numbers
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 911 1978-1983 3.0L / SC
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
The product you are viewing cross references to these numbers
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 911 1978-1983 3.0L / SC
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
The product you are viewing cross references to these numbers
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 911 1978-1983 3.0L / SC
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
The product you are viewing cross references to these numbers
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
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
The product you are viewing cross references to these numbers
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
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
The product you are viewing cross references to these numbers
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
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
The product you are viewing cross references to these numbers
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
-
k-jetronic 911 SC 930.03/04, 930.05/06, 930.09/10, 930.13/15, 930.19 1978-83 107-10
-
fuel system rear 911 SC 1978-83 201-05
-
fuel system rear 911 TURBO 1978-83 201-10
-
tank ventilation 911 1978-83 201-15
-
injection system cylinder head and injection pump 911 E/S UPTO 1971 and 911 911 T-E/E/S, CARRERA 2.7 1972 ONWARDS 107-20
-
Injection system with fuel line valves flap connection and warm-up valve 911 T-K 1972 ONWARDS 107-40
-
fuel system rear 911 TURBO 930.66/68 1987-89 201-10
-
K - JETRONIC mixture control unit 911 1974-76 107-00
-
K - JETRONIC mixture control unit 911 1977 ONWARDS 107-05
-
Mechanical injection left for Model 911/83 1974-77 107-20
-
Mechanical injection right for Model 911/83 1974-77 107-25
-
Tank ventilation 911 UPTO 1974 201-25
-
Tank ventilation 911 1975 ONWARDS 201-30
-
injection system cylinder head and injection pump for 911 E/S 1969 onwards 107-20
-
tank ventilation 911 TURBO 1975 onwards 201-30
-
Fuel system rear 911 TURBO 1984-86 201-10
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?
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.