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Porsche > 964 (911) (1989-1994) > Engine Rebuild Parts > Fuel System Parts >

Fuel Lines & Breather Hoses

Fuel Lines & Breather Hoses

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DISPLAYING 17 to 32 (of 34 products)
1 2 3
Fuel return line. Porsche 964 / 993 - 96435658307, 96435658305, 96435658300
2
Fuel return line. Porsche 964 / 993
Special Order item
96435658307
Product Information
Product Information
Fuel return line.

porsche

Fits:
Porsche 964 >>1991

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

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Related, superseded, cross reference or alternative numbers for comparison.

96435658307
96435658307
96435658305
96435658300

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Fuel return line. Porsche 964 / 993 LHD cars - 96435658306, 96435658302
4
Fuel return line. Porsche 964 / 993 LHD cars
Special Order item
96435658306
Product Information
Product Information
Fuel return line.

porsche

Fits:
Only for left-hand-drive vehicles
Porsche 964 1992-94
Porsche 993 1994-98

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

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96435658306
96435658306
96435658302

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Fuel return line. Porsche 964 / 993 RHD cars - 96435658403, 96435658402, 96435658401
4
Fuel return line. Porsche 964 / 993 RHD cars
Special Order item
96435658403
Product Information
Product Information
Fuel return line.

porsche

Fits:
Only for right-hand-drive vehicles
Porsche 964 1992-94
Porsche 993 1994-98

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

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96435658403
96435658403
96435658402
96435658401

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Fuel return line. Porsche 964 1989-94 LHD - 96435636703, 96435636702
2
Fuel return line. Porsche 964 1989-94 LHD
Special Order item
96435636703
Product Information
Product Information
Fuel return line.

porsche

Fits:
Porsche 964 1989-94 LHD cars

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

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96435636703
96435636703
96435636702

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Fuel Return Line. Porsche 964 C2 / C4 / RS - 96411041500
4
Fuel Return Line. Porsche 964 C2 / C4 / RS
Special Order item
96411041500
Product Information
Product Information
Fuel Return Line.

 
porsche

Fits:
Porsche 964 C2 / C4 1989-94
Porsche 964 Carrera RS 3.6L 1992 (M657 - cars with power assisted steering)

Click 'Zoom in' for large parts diagram.
Diagram ref no 9.



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96411041500
96411041500

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Fuel return line. Porsche 964 Carrera RS 1992 - 96411041501
2
Fuel return line. Porsche 964 Carrera RS 1992
Special Order item
96411041501
Product Information
Product Information
Fuel Return Line.

porsche

Fits:
Porsche 964 Carrera RS 3.6L 1992

Click picture for large parts diagram.
Diagram Ref No 9.

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96411041501
96411041501

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Fuel return line. Porsche 964 RHD cars - 96435636801, 96435636800
2
Fuel return line. Porsche 964 RHD cars
Special Order item
96435636801
Product Information
Product Information
Fuel return line for RHD cars

porsche

Fits:
For RHD cars only
Porsche 964 C2 / C4 1990-94
Porsche 964 Carrera RS 1992-92
Porsche 964 Turbo 1991-94

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

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96435636801
96435636801
96435636800

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Fuel Supply Line, RHD. Porsche 964 1989-91 - 96435606204, 96435606201
1
Fuel Supply Line, RHD. Porsche 964 1989-91
Special Order item
96435606204
Product Information
Product Information
Fuel Supply Line, RHD.
Ensure reliable and safe fuel delivery in your Porsche with this genuine OEM fuel line. Designed for the Porsche 911 (964 series) and compatible models, this line is built to Porsche’s specification, delivering correct flow and pressure under demanding conditions. Whether it’s an aged original being replaced, or you’re refreshing your fuel-system as part of a restoration, this line is the correct direct replacement.
For Right Hand Drive Cars ONLY!

Fits:
  • Porsche 964 (911) C2 1989-91
  • Porsche 964 (911) C4 1989-91

Diagram Ref No 12

What This Product Does:

  • This fuel line serves as a supply / delivery line in the fuel system of the vehicle — it carries fuel (often from the tank or pump assembly) to a required downstream point (for example to injectors, filter, or engine compartment) under appropriate pressure and flow conditions.
  • Because it is an OEM-engineered line, the material, routing, fittings, and mounting clips are designed to match Porsche’s specification of that era — ensuring correct pressure resistance, vibration resistance, fuel type compatibility (petrol, possibly lead-free or additives), and correct safety margins.
  • The correct fuel line helps maintain fuel delivery without leaks, maintains correct flow/pressure, prevents vaporisation or fuel starvation, and helps ensure safe and reliable engine operation.

Symptoms And When To Replace:
  • Fuel smell or visible leak: Any aroma of petrol around the engine bay or underside, or visible wetness on or around the line’s fittings.
  • Cracks, bulges or deterioration of the line: Over time hoses/lines degrade from heat/vibration/fuel exposure. If you see exterior damage or soft spots, it’s a red flag.
  • Fuel pressure issues: If the fuel delivery is erratic, engine sputters under load or you suspect a drop in supply, the line or its fittings might be compromised.
  • Hard starts or hesitation under acceleration: Especially in high-demand situations the supply line may fail to deliver properly.
  • Vehicle overhaul or restoration: If the car is older and the original fuel system components are aged, installing a new line is a preventative measure.

Why Replacement Matters:
  • Safety: Fuel lines operate under pressure and handle flammable fuel. A failure can lead to leaks, fire risk or engine shutdown, replacing the line ensures design safety margins.
  • Performance & reliability: Proper line ensures correct fuel supply, no pressure drop, no vapor lock or starvation issues which can degrade performance or lead to engine damage.



Related reference numbers
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96435606204
96435606204
96435606201

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Fuel Supply Line. Porsche 964 C2 / C4 / RS - 96411041104, 96411041103
4
Fuel Supply Line. Porsche 964 C2 / C4 / RS
Special Order item
96411041104
Product Information
Product Information
Fuel Supply Line.


porsche

Fits:
Porsche 964 C2 / C4 1989-94
Porsche 964 Carrera RS 3.6L 1992

This product supersedes Porsche's old part numbers:
- 96411041103

Click picture for large parts diagram.
Diagram Ref No 21.



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96411041104
96411041104
96411041103

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Fuel Supply Line. Porsche 964 C2 / C4 / RS - 96411041202
4
Fuel Supply Line. Porsche 964 C2 / C4 / RS
Special Order item
96411041202
Product Information
Product Information
Fuel Supply Line.


porsche

Fits:
Porsche 964 C2 / C4 1989-94
Porsche 964 Carrera RS 3.6L 1992

Click picture for large parts diagram.
Diagram Ref No 22.



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96411041202
96411041202

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Fuel Supply Line. Porsche 964 C2 / C4 / RS - 96411041300, 96411041301
4
Fuel Supply Line. Porsche 964 C2 / C4 / RS
Special Order item
96411041301
Product Information
Product Information
Fuel Supply Line.


porsche

Fits:
Porsche 964 C2 / C4 1989-94
Porsche 964 Carrera RS 3.6L 1992

Click picture for large parts diagram.
Diagram Ref No 14.



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

96411041301
96411041300
96411041301

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Fuel tank suction hose from in tank filter. Porsche 964 >>91 - 96420158101
4
Fuel tank suction hose from in tank filter. Porsche 964 >>91
Special Order item
96420158101
Product Information
Product Information
Fuel tank Suction Hose for LHD Cars. Comes off In-Tank fuel filter.

porsche

Fits:
Porsche 964 >>1991 LHD Cars

Click 'Zoom in' for large parts diagram.
Diagram ref no 29

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96420158101
96420158101

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Hose clip fuel pipe 17x9. Porsche 911 / 964 / 993 / 924 / 944 - PCG51219802, 99951219802
3
Hose clip fuel pipe 17x9. Porsche 911 / 964 / 993 / 924 / 944
Special Order item
PCG51219802
Product Information
Product Information
Hose clip fuel pipe - 17x9mm
Sold each

porsche

Fits:
Porsche 911 - 1974 to 1983
Porsche 964 - 1989 to 1994
Porsche 993 - 1994 to 1997
Porsche 924 - 1980 to 1985
Porsche 944 - 1982 to 1985
Porsche 968 - 1992 to 1995

Click 'Zoom in' for large parts diagram.
Diagram ref no 6


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PCG51219802
PCG51219802
99951219802

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Mounting bracket fuel pipe clamp. Porsche 911 turbo / 964 turbo - 93011043401
4
Mounting bracket fuel pipe clamp. Porsche 911 turbo / 964 turbo
Special Order item
93011043401
Product Information
Product Information
Mounting bracket fuel pipe clamp. 

porsche

Fits:
Porsche 911 turbo - 1975 to 1989
Porsche 964 turbo - 1991 to 1993

Click 'Zoom in' for large parts diagram.
Diagram ref no 10




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93011043401
93011043401

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Overflow hose for fuel filler neck. Porsche 911 / 964 / 993 - 96420115300
2
Overflow hose for fuel filler neck. Porsche 911 / 964 / 993
Special Order item
96420115300
Product Information
Product Information
Overflow hose for fuel filler neck.

porsche

Fits:
Porsche 911 1978-89
Porsche 964 1989-94
Porsche 993 1994-98

Click 'Zoom in' for large parts diagram.
Diagram ref no 24

Related reference numbers
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96420115300
96420115300

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Overflow hose for fuel filler neck. Porsche 911 / 964 / 993 - 96420115300 - 8490-3
2
Overflow hose for fuel filler neck. Porsche 911 / 964 / 993
96420115300/1
Product Information
Product Information
Overflow hose for fuel filler neck.

oematch

Fits:
Porsche 911 1978-89
Porsche 964 1989-94
Porsche 993 1994-98

Click 'Zoom in' for large parts diagram.
Diagram ref no 24

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96420115300
96420115300

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DISPLAYING 17 to 32 (of 34 products)
1 2 3
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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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