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Porsche > 914 (1970-1976) > Engine Rebuild Parts > Fuel System Parts >

Fuel Lines & Breather Hoses

Fuel Lines & Breather Hoses

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DISPLAYING 1 to 6 (of 6 products)
Braided Fuel Breather Hose 12 x 3,3mm Sold by the Metre. Porsche 924 / 914 - N0203741, N0202901 - PKS1218T
2
Braided Fuel Breather Hose 12 x 3,3mm Sold by the Metre. Porsche 924 / 914
N0202901/1
Product Information
Product Information

Braided Fuel Tank Breather Hose - 12 x 3,3mm
Sold per metre

High-quality braided fuel tank breather hose designed for Porsche 924 and 914 models, supplied per metre for custom length applications.

Fits:

  • 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 914 (1970-1976)

Diagram ref no 6, 7, 8 and 9

This hose is used within the fuel tank ventilation system to safely transport fuel vapours and maintain correct tank pressure. The braided outer layer provides enhanced durability and protection while retaining flexibility for easy routing within the engine bay or fuel system layout.

Manufactured to OEM specifications, this hose ensures reliable performance and correct fitment, making it ideal for maintenance, repair, or restoration of classic Porsche fuel systems.

Key Features

• Braided fuel tank breather hose
• Suitable for Porsche 924 and 914
• Designed for fuel tank ventilation systems
• Sold per metre for custom lengths
• Flexible and durable construction
• OEM-style appearance and performance

Function and Purpose

This breather hose is a critical component within the fuel system.

It helps to:
• Vent fuel vapours safely from the tank
• Maintain correct internal tank pressure
• Prevent vapour build-up and system imbalance
• Support efficient fuel system operation
• Ensure safe and reliable vehicle performance

Why Replace Breather Hoses

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

Common issues include:
• Cracking or splitting
• Hardening and loss of flexibility
• Fuel vapour leaks
• Reduced ventilation efficiency

Replacing worn hoses restores proper system function and safety.



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Related, superseded, cross reference or alternative numbers for comparison.

N0202901
N0203741
N0202901

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
Clamp Fuel Breather & Handbrake Cable. Porsche 911 1987-89 / 914 - 99951107202 - PRSGU25
3
Clamp Fuel Breather & Handbrake Cable. Porsche 911 1987-89 / 914
99951107202/1
Product Information
Product Information

Fuel Breather & Handbrake Cable Clamp - 9/10
Sold each

High-quality 10/9 clamp designed for securing components on Porsche 911 and 914 models.

This clamp is used in the fuel tank breather system on the Porsche 911 and for securing handbrake cables on the Porsche 914, making it a versatile and essential component for maintaining proper routing and system integrity.

Fits:

  • Porsche 911 1987-1989 3.2L G50
  • Porsche 911 1987-1989 3.3L Turbo (930)
  • Porsche 914 (1970-1976)

Diagram ref no 23 

Manufactured to OEM specifications, this clamp ensures secure fitment, durability, and resistance to corrosion. Supplied individually, it is ideal for maintenance, repair, or restoration of classic Porsche systems.

Key Features

• Clamp size 10/9
• Suitable for Porsche 911 and Porsche 914
• Part number 99951107202
• Used for fuel breather hoses and handbrake cables
• Ensures secure mounting and routing
• Durable and corrosion-resistant construction
• OEM-style fit and performance
• Sold individually

Function and Purpose

This clamp is designed to secure hoses and cables in position.

It helps to:
• Hold fuel breather hoses securely in place (911)
• Maintain correct routing of handbrake cables (914)
• Prevent movement and vibration-related wear
• Protect hoses and cables from damage
• Ensure reliable system operation

Why Replace Clamps

Clamps can weaken or corrode over time.

Common issues include:
• Reduced clamping strength
• Corrosion or fatigue
• Hose or cable movement
• Increased risk of leaks or wear

Replacing worn clamps ensures secure installation and long-term reliability.



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

99951107202
99951107202

The product you are viewing cross references to these numbers
Protective sheath covering. Porsche 911
3
Protective sheath covering. Porsche 911
Special Order item
99961301740
Product Information
Product Information
Protective sheath covering. 

porsche

Fits:

Porsche 911 / 912 - 1965 to 1989
Porsche 914

Protective sheathing cover for fuel ventilation lines and wiring harness

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

Tapered fuel hose for connection at fuel filter. Porsche 914 - 91435652501, 91435652500
2
Tapered fuel hose for connection at fuel filter. Porsche 914
Special Order item
91435652501
Product Information
Product Information
Tapered fuel hose for connection at fuel filter.

porsche

Fits:
Porsche 914 1970-74
*** excluding 914/6

Click 'Zoom in' for large parts diagram.
Diagram ref no 8

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

91435652501
91435652501
91435652500

The product you are viewing cross references to these numbers
DISPLAYING 1 to 6 (of 6 products)
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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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