Please wait… 
Please wait while we process your order,
do not press the back button… 
Design 911 Design 911 supply Porsche parts, Porsche spares and Porsche accessories, to both retail and to the trade. Our Porsche product and accessory range includes brakes, exhausts, tyres, wheels and Porsche panels and interiors. https://www.design91.uk/images/schemaLogo.png https://www.design91.uk/images/schemaLogo.png +443456003478 https://www.design91.uk Facebook Instagram

Fuel Injection / Collection Rail

Refine by Car Type
Filter by brand
DISPLAYING 1 to 3 (of 3 products)
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Related, superseded, cross reference or alternative numbers for comparison.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
Special Order item
94411041303
Product Information
Product Information
Fuel line - runs from the fuel rail to the diaphragm damper. 

Fits:
Porsche 924 S 2.5L 1986-88

Porsche 944-2 2.5L 1985-88
Porsche 944 2.7L 1989 

Porsche 944 Turbo 2.5L 1986-91
Porsche 944 Turbo S 2.5L 1988 

Diagram ref. 11. 

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Related, superseded, cross reference or alternative numbers for comparison.

94411041303
94411041302
94411041303

The product you are viewing cross references to these numbers
M141
Product Information
Product Information

Rennline High Pressure Fuel Rail 
Upgrade your aging factory fuel system with Rennline’s High Pressure Fuel Rail Line. Designed to outperform and outlast the original, this premium replacement features a modern braided fuel line paired with precision CNC-machined billet aluminum ends, ensuring a secure, leak-free fit. Unlike other aftermarket options, this rail follows the OEM routing to prevent interference with the rocker cover. Perfect for stock replacements or high-performance builds.

Fits:

  • 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 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 11 

Key Features:

  • Modern braided fuel hose for enhanced durability and higher pressure tolerance
  • CNC-machined billet ends for an OEM+ look and performance
  • Includes 10mm & 8mm to -6 JIC compression fittings
  • Ideal for both factory replacement and performance applications


What the Product Does

  • Delivers high-pressure fuel reliably to the injectors.
  • Withstands higher fuel system pressures compared to aging OEM parts.
  • Prevents leaks with precision-machined fittings and modern hose construction.
  • Maintains factory routing for a clean, interference-free fit.

Symptoms of a Failing or Worn Fuel Rail

  • Strong fuel smell from the engine bay.
  • Visible leaks or damp spots on the fuel line/rail. 
  • Hard starting or poor performance under load.
  • Fuel pressure loss or misfires.
  • Cracked or brittle factory lines due to age. 

Common Reasons for Failure

  • Aging Materials: Original rubber fuel lines harden and crack over time.
  • Heat Exposure: Constant engine bay heat accelerates degradation.
  • Fuel Pressure Stress: Stock parts may struggle with modern fuel blends and higher pressures.
  • Corrosion: Factory metal ends may rust or weaken.

Why Replace?

  • Prevents dangerous fuel leaks and fire hazards.
  • Restores reliable fuel delivery and performance.
  • Provides a long-term solution with modern materials.
  • Supports both daily driving and high-performance builds.
  • Eliminates common clearance issues with poorly designed aftermarket options.

 Ideal For: Porsche 924S, 944, and 951 owners seeking a safe, reliable upgrade to their fuel delivery system - whether for everyday driving or high-performance tuning.



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

M141
94411041302
94411041303

The product you are viewing cross references to these numbers
DISPLAYING 1 to 3 (of 3 products)
Also found on these pages
About Fuel Injection / Collection Rail

Fuel Injection Rails & Components – Precision Fuel Delivery for Peak Porsche Performance

The fuel injection rail (or fuel collection rail) and related components are essential to maintaining consistent fuel delivery and pressure in your Porsche’s high-performance engine. The fuel rail distributes fuel evenly to the injectors, ensuring precise combustion and smooth throttle response under all driving conditions.

At Design911, we stock a comprehensive range of precision-engineered fuel injection rails, fittings, and components built to manufacturer-quality standards for performance, reliability, and longevity. Each part is crafted from high-grade aluminium, stainless steel, or reinforced composites, designed to resist corrosion, heat, and vibration — delivering reliable performance whether you’re maintaining a classic Porsche or fine-tuning a modern GT model.

Our selection includes fuel rails, connectors, injectors, regulators, and sealing hardware — everything needed to keep your Porsche’s fuel injection system performing flawlessly.

What Do Fuel Injection Rails & Parts Do?

Fuel injection rails and components ensure your Porsche’s engine receives the right amount of fuel at the right time. Working together, they maintain stable pressure and evenly distribute fuel to each injector for efficient combustion and power output.

Core Functions:

  • Fuel Rail: Channels fuel evenly to the injectors under constant pressure.
  • Fittings and Connectors: Securely seal and link the rail, pump, and injectors.
  • Regulators & Sensors: Maintain optimal fuel pressure and monitor delivery consistency.
  • Seals & Gaskets: Prevent fuel leaks and pressure loss across components.

A balanced, clean, and well-functioning injection system ensures smooth acceleration, optimal efficiency, and reduced emissions — crucial for Porsche performance.

Why Do Fuel Injection Components Fail?

Fuel injection parts operate under high pressure and heat, meaning even small imperfections can affect performance. Over time, wear, contamination, and corrosion can lead to inconsistent fuel delivery or leaks.

Common Causes of Failure Include:

  • Corrosion from moisture or fuel impurities.
  • Clogged injectors or blocked fuel rails due to sediment buildup.
  • Cracked fittings or deteriorated seals, leading to leaks.
  • Worn pressure regulators, causing fuel pressure imbalance.
  • Fuel contamination from dirty filters or ageing fuel tanks.

Symptoms of failure include rough idling, loss of power, poor fuel economy, or hard starting, often traced to worn or restricted fuel system components.

Why Replace with Precision-Engineered Fuel Injection Parts?

Upgrading or replacing worn fuel injection rails and components restores your Porsche’s performance, responsiveness, and reliability. Precision-fit, high-strength replacements ensure smooth pressure regulation, clean fuel delivery, and efficient combustion.

Key Benefits:

  • Restores accurate and consistent fuel delivery.
  • Improves throttle response and engine smoothness.
  • Prevents leaks and pressure fluctuations.
  • Reduces fuel consumption and emissions.
  • Crafted from durable, corrosion-resistant materials.
  • Direct-fit compatibility for Porsche classic and modern models.

Whether performing a rebuild or upgrading for track use, high-quality injection components are essential for maintaining Porsche precision and performance.

Highlights:

  • Complete range of Porsche fuel rails, injectors, and fittings.
  • Precision-machined for accurate fuel delivery and sealing.
  • Engineered from lightweight, high-strength alloys.
  • Compatible with classic and modern Porsche injection systems.
  • Ensures reliable pressure regulation and clean fuel flow.
  • Perfect for rebuilds, restorations, or performance upgrades.

You may also like
Popular Models