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Fuel Lines & Breather Hoses
- 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Related, superseded, cross reference or alternative numbers for comparison.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)
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
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Related, superseded, cross reference or alternative numbers for comparison.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 1965-1968 2.0L / 912 SWB (F)
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
Fits:
Porsche 911 1969-71
Diagram ref no 31
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
91611033000
The product you are viewing cross references to these numbers
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
Fits:
Porsche 911 1969-71
Diagram ref no 31
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
91611033000
The product you are viewing cross references to these numbers
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
Fits:
Porsche 911 1969-71
Diagram ref no 31
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
91611033000
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
The Injector pipe bracket is a precision-manufactured support bracket designed to secure the fuel injection or injector supply pipes on Porsche 911 models. This bracket locates the injector line firmly, prevents vibration-induced wear, ensures correct routing, and helps maintain system integrity. Its replicates the factory form, fits directly into the mounting points, and offers dependable durability for OE-type fitment.
Fits:
Porsche 911 1969 - 1977
Diagram ref no 11
• Function: Secures injection or fuel supply pipe to head or pump assembly
• Position: Engine – injection system, cylinder head / injection pump fitting
• Benefits: Reinforces fuel-injection plumbing, prevents vibration wear, ensures proper alignment
Fuel-injection piping and brackets are subject to constant engine vibration, heat, and mechanical stress. Over time the original bracket may become loosened, corroded, bent or fatigued, resulting in unstable pipe support, potential wear, or fuel-leak risk.
Replace this bracket when:
• Performing a fuel-injection system repair or service
• You observe loose or vibrating injection lines
• The original bracket shows corrosion, bending or missing alignment
• Re-installing injection plumbing after head or pump removal
Installing a new Injector Pipe Bracket ensures secure pipe routing, reduced vibration wear, and continued safe operation of the injection system in your Porsche 911.
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
The Fuel Line for Warm Up Valve is an OEM-spec Porsche fuel line designed for classic air-cooled Porsche 911 models equipped with Bosch CIS / K-Jetronic mechanical fuel injection. This line connects to the warm-up valve / warm-up regulator and plays an essential role in maintaining correct fuel routing and pressure control during cold starts and engine warm-up.
Fits:
- Porsche 911 T-K 1972-1973 2.4L WB (F)
- Porsche 911 1974-1976 2.7L / 1976 3.0 Carrera
Fits On To Diagram Ref No 28
In CIS fuel systems, the warm-up regulator helps manage control pressure so the engine can start cleanly when cold and transition smoothly to normal running conditions as temperatures rise. A properly functioning fuel line is critical to ensure stable pressure and leak-free operation. Over time, original fuel lines can degrade from age, heat exposure, and vibration, leading to cracking, seepage, or weakened fittings.
What This Product Does:
- Carries fuel to/from the warm-up valve / warm-up regulator
- Helps regulate control pressure in CIS injection systems
- Supports smooth cold start operation and warm running performance
- Ensures fuel is delivered through the correct metering path
- Maintains leak-free, correct routing using OEM-style fittings
Symptoms Of A Failing Fuel Line:
- Fuel smell in the engine bay
- Visible fuel seepage or dampness around fittings
- Cracked or aged line material (especially on older CIS cars)
- Hard starting or poor cold running (if pressure is affected)
- Rough idle during warm-up
- Potential fuel leaks creating a fire risk
Why Replacement Matters:
- Prevents dangerous fuel leaks in the engine bay
- Maintains correct CIS fuel pressure regulation for proper drivability
- Supports reliable cold starts and smoother warm-up operation
- Helps avoid engine running issues caused by pressure loss
- Preserves safety and originality in classic Porsche maintenance
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
91111009701
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
The Fuel Line for Warm Up Valve is a fuel line designed for classic air-cooled Porsche 911 models equipped with Bosch CIS / K-Jetronic mechanical fuel injection. This line connects to the warm-up valve / warm-up regulator and plays an essential role in maintaining correct fuel routing and pressure control during cold starts and engine warm-up.
Fits:
- Porsche 911 T-K 1972-1973 2.4L LWB (F)
- Porsche 911 1974-1976 2.7L / 1976 3.0 Carrera
Fits On To Diagram Ref No 28
In CIS fuel systems, the warm-up regulator helps manage control pressure so the engine can start cleanly when cold and transition smoothly to normal running conditions as temperatures rise. A properly functioning fuel line is critical to ensure stable pressure and leak-free operation. Over time, original fuel lines can degrade from age, heat exposure, and vibration, leading to cracking, seepage, or weakened fittings.
What This Product Does:
- Carries fuel to/from the warm-up valve / warm-up regulator
- Helps regulate control pressure in CIS injection systems
- Supports smooth cold start operation and warm running performance
- Ensures fuel is delivered through the correct metering path
- Maintains leak-free
Symptoms Of A Failing Fuel Line:
- Fuel smell in the engine bay
- Visible fuel seepage or dampness around fittings
- Cracked or aged line material (especially on older CIS cars)
- Hard starting or poor cold running (if pressure is affected)
- Rough idle during warm-up
- Potential fuel leaks creating a fire risk
Why Replacement Matters:
- Prevents dangerous fuel leaks in the engine bay
- Maintains correct CIS fuel pressure regulation for proper drivability
- Supports reliable cold starts and smoother warm-up operation
- Helps avoid engine running issues caused by pressure loss
- Preserves safety in classic Porsche maintenance
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
91111009701
The product you are viewing cross references to these numbers
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
This is an original Porsche metal fuel line routed through the centre tunnel of early 911/912 models. It carries fuel or return flow as part of the vehicle’s original fuel-system layout.
Fits:
Porsche 911 E / 911S - 1969 to to 1971 (2 required per car)
Porsche 911T 1969 to 1969 (1 required per car)
Porsche 911 - 1972 to 1973 (1 required per car)
Diagram ref no 25 (for 911T, 911) / 18 (for 911E/S)
Runs from the fuel tank area through the centre tunnel; often termed a “control line” or “return line.”
With age the original metal line can suffer from corrosion, fatigue or damage - leading to fuel leaks or vapour loss, which pose safety risks. Installing the correct genuine Porsche line ensures the system maintains its original routing, integrity and reliable fuel delivery.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
90110853101
The product you are viewing cross references to these numbers
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
Metal fuel line that runs the length of the centre tunnel.
Fits:
Porsche 911 E / 911S - 1969 to to 1971 (2 required per car)
Porsche 911T 1969 to 1969 (1 required per car)
Porsche 911 - 1972 to 1973 (1 required per car)
Diagram ref no 25 (for 911T, 911) / 18 (for 911E/S)
This metal fuel line provides reliable fuel-circuiting within the vehicle’s structure, directing fuel return or feed through the centre tunnel. It must maintain integrity under fuel pressure, vibration and heat, while resisting corrosion for long service life.
Over time, the original fuel lines in the centre tunnel can deteriorate due to vibration, fuel exposure, and age. This can lead to leaks, vapour loss, or safety risks. Replace the fuel line when:
• Corrosion or rust is visible on the metal surface.
• You notice fuel odour or damp spots near the tunnel area.
• The line shows signs of wear, cracking, or deformation.
• Performing a full restoration, engine rebuild, or fuel-system refresh.
Installing a high-quality new fuel line ensures proper routing, durable materials, and leak-free operation - restoring the safety and reliability of your Porsche’s fuel system.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
90110853101
The product you are viewing cross references to these numbers
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
Fits:
Porsche 911 65-73 Weber / Zenith Carburettor
Diagram ref no 3
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
90110805106
The product you are viewing cross references to these numbers
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
Fits:
Porsche 911 T/912 1965-69
Porsche 911 E/S 1965-71
Porsche 911 T 1970-71
Click 'Zoom in' for large parts diagram.
Diagram ref no 22
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
90135653201
The product you are viewing cross references to these numbers
- 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
For Lines with Banjo Connections
with bolts
Fits:
Porsche 911 E/S 2.2-2.4 08/68-07/73
Porsche 911 Carrera 2.7 08/73-07/74
Click 'Zoom in' for large parts diagram.
Diagram ref no 7
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
90135604900
The product you are viewing cross references to these numbers
- 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
8mm pipe / 12mm banjo
Fits:
Porsche 911 1969-75
Click 'Zoom in' for large parts diagram.
Diagram ref no 7
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
90135604900
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
Fuel Pressure Line – To Fuel Accumulator
High-quality replacement fuel pressure line designed for Porsche 911 T-K, 911, and 911S models equipped with Bosch CIS (K-Jetronic) fuel injection systems.
This line connects the fuel system to the fuel accumulator, a critical component responsible for stabilising fuel pressure and ensuring smooth engine operation—particularly during starting and transient load conditions.
Fits:
- Porsche 911 T-K 2.4L - 1972-73
- Porsche 911 2.7L - 1974
- Porsche 911 S 2.7L - 1974
Diagram ref no 18
As part of the high-pressure CIS fuel network, this
line plays a vital role in maintaining consistent fuel delivery across the
entire system.
Manufactured to OEM specifications, it provides precise fitment and durability, making it ideal for maintenance, repair, or full fuel system restoration.
Key Features
• Direct replacement fuel pressure line to accumulator
• Suitable for Porsche 911 T / 911 / 911S (CIS systems)
• Designed for high-pressure fuel delivery
• OEM-correct routing and fitment
• Resistant to fuel, heat, and pressure
• Ideal for single replacement or full system rebuild
Part of a Complete CIS Fuel System
This fuel pressure line operates within a fully integrated CIS fuel delivery system, including:
• Fuel pump
• Fuel accumulator
• Fuel metering head
• Injector lines (to each cylinder)
• Fuel return lines
• Fuel injectors
Each component is interconnected—meaning performance issues are often linked across multiple parts.
Why Replace Fuel Pressure Lines as a System
Due to age and operating conditions, CIS fuel lines often degrade together.
Common reasons to replace include:
• Pressure loss or inconsistent fuel delivery
• Hard starting or poor warm running
• Fuel leaks under pressure
• Age-related cracking or internal restriction
For best results, inspect or replace multiple lines together to restore full system performance.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
9113560740Y
The product you are viewing cross references to these numbers
-
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 lines with fuel pump front for 911 UPTO 1971 201-00
-
Fuel system lines with fuel pump rear for 911 T/E/S 1971 ONWARDS and 911 T-V / CARRERA 2.7 / 911 T-K 1972 ONAWRDS 201-05
-
fuel filter with lines for 911 CARRERA 2.7 1973 ONWARDS / 911 T/E/S and 911 T-K 1970-73 201-15
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.
