Please wait… 
Please wait while we process your order,
do not press the back button… 
Design911 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.design911.co.uk/images/schemaLogo.png https://www.design911.co.uk/images/schemaLogo.png +443456003478 https://www.design911.co.uk Facebook Instagram
Porsche specialists based in the UK
Porsche > 993 (911) (1994-1998) > 993 (911) GT2 1994-97 > Engine Electrical >

Injectors

Injectors

Filter by brand
DISPLAYING 1 to 3 (of 3 products)
Fuel injector seal o-ring. Porsche 955 Cayenne / 986 Boxster / 964 / 993 / 996 - 94411090101, 893.889
1
Fuel injector seal o-ring. Porsche 955 Cayenne / 986 Boxster / 964 / 993 / 996
Special Order item
94411090101
Product Information
Product Information
Fuel injector Seal O-ring. 7,52 x 3,53.

porsche

Fits:
Porsche 955 Cayenne 3.2L 2004-05
Porsche 986 Boxster 1997-04 ALL models
Porsche 964 C2 / C4 / RS 1989-94
Porsche 993 1995-98 ALL models
Porsche 996 1998-05 ALL models

Click 'Zoom in' for large parts diagram.
Diagram ref no 4

Price is for each.

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Related, superseded, cross reference or alternative numbers for comparison.

94411090101
94411090101
893.889

The product you are viewing cross references to these numbers
Fuel injector seal o-ring. Porsche 955 Cayenne / 986 Boxster / 964 / 993 / 996 - 94411090101, 893.889
2
Fuel injector seal o-ring. Porsche 955 Cayenne / 986 Boxster / 964 / 993 / 996
94411090101/1
Product Information
Product Information
Fuel injector seal O-ring. 7,52 x 3,53.

elring

Fits:
Porsche 955 Cayenne 3.2L 2004-05
Porsche 986 Boxster 1997-04 ALL models
Porsche 964 C2 / C4 / RS 1989-94
Porsche 993 1995-98 ALL models
Porsche 996 1998-05 ALL models

Click 'Zoom in' for large parts diagram.
Diagram ref no 4

Price is for each.

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Related, superseded, cross reference or alternative numbers for comparison.

94411090101
94411090101
893.889

The product you are viewing cross references to these numbers
Fuel Injector Seal O-Ring. Porsche 955 Cayenne / 986 Boxster / 964 / 993 / 996 - 94411090101 - 111 414
2
Fuel Injector Seal O-Ring. Porsche 955 Cayenne / 986 Boxster / 964 / 993 / 996
94411090101/2
Product Information
Product Information
Fuel Injector Seal O-Ring, 7.52 x 3.53.
The OE Match Fuel Injector Seal O-Ring, 7.52 x 3.53mm is a premium-quality replacement sealing component designed to provide a secure, leak-free seal between the fuel injector and its mounting point on compatible Porsche models. Manufactured to OE specifications for fit, sealing performance and durability, this precision-engineered O-ring helps maintain correct fuel pressure while preventing fuel leaks and the ingress of air or contaminants into the fuel injection system.  

Fits:
  • Porsche Boxster 986 2.5L 1997-99
  • Porsche Boxster 986 2.7L 1999-02
  • Porsche Boxster S 986 3.2L 1999-02
  • Porsche Boxster 986 2.7L 2003-04
  • Porsche Boxster S 986 3.2L 2003-04
  • Porsche 964 (911) C2 1989-93
  • Porsche 964 (911) C4 1989-93
  • Porsche 964 (911) RS 3.6L 1991-93
  • Porsche 964 (911) RS 3.8L 1991-93
  • Porsche 993 (911) C2 1994-97
  • Porsche 993 (911) C4 1994-97
  • Porsche 993 (911) RS 1994-97
  • Porsche 993 (911) C2S 1994-97
  • Porsche 993 (911) C4S 1994-97
  • Porsche 993 (911) TURBO 1994-96
  • Porsche 993 (911) GT2 1994-97
  • Porsche 993 (911) TURBO S 1994-97
  • Porsche 996 C2 3.4L 1997-08/01
  • Porsche 996 C4 3.4L 1997-08/01
  • Porsche 996 C2 3.6L 09/01-2005
  • Porsche 996 C4 3.6L 09/01-2005
  • Porsche 996 C4S 3.6L 09/01-2005
  • Porsche 996 TURBO 2000-05
  • Porsche 996 GT2 2001-05
  • Porsche 996 GT3 MKI 1999-02
  • Porsche 996 GT3 MKII 2003>>
  • Porsche 996 GT3 RS 2003-04
  • Porsche 955 Cayenne 3.2L V6 2003-06  

Diagram Ref No 4

Manufactured from premium fuel-resistant elastomer, the O-ring is engineered to withstand continuous exposure to petrol, engine heat, fuel pressure and repeated thermal cycling without hardening, cracking or losing elasticity. Precision-manufactured to the original dimensions of 7.52 x 3.53mm, it provides direct OE-style fitment and dependable sealing performance during injector installation, fuel system servicing or engine repairs.

What This Product Does:
  • Creates a leak-free seal around the fuel injector.
  • Maintains correct fuel system pressure.
  • Prevents fuel leaks between the injector and its mounting point.
  • Stops unmetered air from entering the fuel system.
  • Protects surrounding engine components from fuel contamination.
  • Supports efficient fuel delivery and combustion.
  • Restores factory fuel system sealing performance.
  • Forms an essential part of the engine fuel injection system.

Symptoms Of Wear Or Failure:
  • Fuel smell from the engine bay.
  • Visible fuel leaks around the injector.
  • Difficult engine starting.
  • Rough idle or engine misfires.
  • Reduced engine performance.
  • Increased fuel consumption.
  • Loss of fuel pressure.
  • Cracked, flattened or hardened O-ring.
  • Fuel system fault codes.
  • Increased fire risk due to fuel leakage.

Why Replacement Matters:

  • The fuel injector seal O-ring is continuously exposed to fuel, high operating temperatures and pressure fluctuations. Over time, the sealing material naturally hardens, shrinks or becomes compressed, reducing its ability to provide an effective seal around the injector.
  • A deteriorated O-ring can allow fuel to escape or unmetered air to enter the fuel system, affecting fuel pressure, combustion efficiency and overall engine performance. Fuel leaks within the engine bay also present a significant safety hazard and may damage surrounding components if left unresolved.
  • Replacing the injector seal O-ring whenever a fuel injector is removed or serviced helps ensure a secure, leak-free fuel system and reliable engine operation. The OE Match Fuel Injector Seal O-Ring is manufactured to OE standards using premium fuel-resistant materials, providing factory-style fitment, dependable sealing performance and long-lasting durability, helping maintain the safety, efficiency and reliability expected from your Porsche.



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

94411090101
94411090101

The product you are viewing cross references to these numbers
DISPLAYING 1 to 3 (of 3 products)
Also found on these pages
About Injectors

Fuel Injectors – Precision Fuel Delivery for Porsche Performance

Fuel injectors are critical components in your Porsche’s engine management system, responsible for delivering precise amounts of fuel directly into the combustion chamber. They ensure efficient fuel atomisation and optimal air-fuel ratios, which are essential for smooth performance, responsive acceleration, and reduced emissions.

At Design911, we offer a comprehensive selection of genuine and high-quality fuel injectors for Porsche models including 911, Boxster, Cayman, Cayenne, Macan, and Panamera. Each injector is engineered for accuracy, flow consistency, and reliability — ensuring your Porsche maintains its renowned performance and efficiency.

What Do Fuel Injectors Do?

Fuel injectors deliver pressurised fuel into the engine at precise intervals, ensuring perfect combustion. Their primary functions include:

  • Metering and atomising fuel for efficient combustion.
  • Maintaining correct air-fuel ratio under all load conditions.
  • Optimising performance and throttle response.
  • Reducing emissions and fuel consumption.

A properly functioning injector ensures smooth idle, crisp acceleration, and optimal power output — critical for both daily driving and high-performance applications.

Why Do Fuel Injectors Fail?

Fuel injectors operate under high pressure and extreme heat, making them prone to gradual wear or contamination. Common causes of failure include:

  • Fuel contamination from debris or poor-quality petrol.
  • Clogged or restricted nozzles due to carbon buildup.
  • Leaking seals or o-rings causing pressure loss.
  • Electrical faults in injector coils or connectors.
  • Corrosion from ethanol-blended fuels or moisture.

Symptoms of faulty injectors include rough idle, engine misfires, increased fuel consumption, loss of power, or a check engine light.

Why Replace Faulty Fuel Injectors?

Replacing worn or damaged fuel injectors restores your Porsche’s engine efficiency and responsiveness. New injectors ensure precise fuel delivery and balanced performance across all cylinders.

Benefits of replacement include:

  • Restored engine smoothness and performance.
  • Improved throttle response and power delivery.
  • Reduced emissions and better fuel economy.
  • Reliable combustion with manufacturer-quality precision.

Our range of injectors is designed using high-precision engineering and corrosion-resistant materials, ensuring consistent spray patterns, flow rates, and long service life in all conditions.

You may also like
Popular Models