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Fuel Injectors

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DISPLAYING 1 to 10 (of 10 products)
039906031A/1KIT
Product Information
Product Information
Fuel injector set
OE Match fuel injector set of 4 for Porsche 914 2.0 models from 1970 to 1976. This complete injector set includes the four injectors required per vehicle, helping restore balanced fuel delivery, smooth running, reliable starting, and correct engine performance.
Sold as SET OF 4, 1 set required per vehicle.

Fits:
Porsche 914 2.0, engine   M GB0 000 001>>
Porsche 914 2.0, engine   M GC0 000 001>>

Diagram ref no 34

The fuel injectors deliver controlled fuel into the engine intake system. Replacing all four injectors together helps provide even fuel delivery across the engine, supporting clean combustion, stable idle, smooth throttle response, and reliable fuel economy.

Functions
•  Replaces all 4 fuel injectors
  Helps restore balanced fuel delivery
  Supports smooth idle and clean acceleration
  Helps reduce hesitation, misfire, and poor running
  Suitable for fuel injection service or engine restoration
  OE Match replacement set for Porsche 914 2.0 fuel system repair
  Fits listed Porsche 914 2.0 engine applications.

Why Replace This Set?
Fuel injectors can become blocked, worn, leaking, or electrically faulty due to age, fuel contamination, varnish build-up, and long-term use. Faulty injectors may cause rough idle, poor starting, hesitation, misfire, uneven running, fuel smell, high fuel consumption, or reduced performance. Replacing all four injectors together helps restore even fuelling and reliable engine operation.

When to Replace This Set
  Engine runs rough or misfires
  Starting is difficult or inconsistent
  Injectors are leaking, blocked, or faulty
  Idle is unstable or uneven
  Acceleration hesitation or flat spots are present
  Fuel system service or diagnostic repair is being carried out
  Porsche 914 engine restoration is in progress

Where it fits on the car
This injector set fits within the engine fuel injection system on Porsche 914 2.0 models.

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Related, superseded, cross reference or alternative numbers for comparison.

039906031A
039906031A

The product you are viewing cross references to these numbers
022906031A/1KIT
Product Information
Product Information
Fuel injector set
OE Match fuel injector set of 4 for Porsche 914-4 1.7 models from 1970 to 1976. This complete injector set includes the four injectors required per vehicle, helping restore balanced fuel delivery, smooth running, reliable starting, and proper engine performance.
Sold as SET OF 4, 1 set required per vehicle.

Fits:
Porsche 914-4 1.7, engine  M >> W0 057 460

Diagram ref no 34

The fuel injectors deliver a controlled amount of fuel into the engine intake system. Replacing all four injectors together helps provide even fuel delivery across the engine, supporting clean combustion, stable idle, smooth throttle response, and reliable fuel economy.

Functions
•  Replaces all 4 fuel injectors
  Helps restore balanced fuel delivery
  Supports smooth idle and clean acceleration
  Helps reduce hesitation, misfire, and poor running
  Suitable for fuel injection service or engine restoration
  OE Match replacement set for Porsche 914-4 1.7 fuel system repair
  Fits listed Porsche 914-4 1.7 engine applications

Why Replace This Part?
Fuel injectors can become blocked, worn, leaking, or electrically faulty due to age, fuel contamination, varnish build-up, and long-term use. Faulty injectors may cause rough idle, poor starting, hesitation, misfire, uneven running, fuel smell, high fuel consumption, or reduced performance. Replacing all four injectors together helps restore even fuelling and reliable engine operation.

When to Replace This Part
  Engine runs rough or misfires
  Starting is difficult or inconsistent
  Injectors are leaking, blocked, or faulty
  Idle is unstable or uneven
  Acceleration hesitation or flat spots are present
  Fuel system service or diagnostic repair is being carried out
  Porsche 914 engine restoration is in progress

Where it fits on the car
This injector set fits within the engine fuel injection system on Porsche 914-4 1.7 models.

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

022906031A
022906031A

The product you are viewing cross references to these numbers
039791761/1
Product Information
Product Information
Fuel injection harness. Porsche 914 2.0L

oematch

Fits:
Porsche 914 2.0L

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

039791761
039791761
039791761B

The product you are viewing cross references to these numbers
Special Order item
311133261A
Product Information
Product Information

Fuel Injector Locating Bush Inner – Injector Mounting O-Ring & Vibration Damper
Sold each

High-quality fuel injector locating bush designed for Porsche 928S models with engines M28.19, M28.20, M28.21, and M28.22, and also used in various other applications including select Mercedes models.

Fits:

  • Porsche 928S 4.7L 1981-83
  • Porsche 928S2 4.7L 1984-86
  • Porsche 914-4 (1970-1976)

Diagram ref no 27

This component is mounted over the fuel injector and functions as both a locating bearing and vibration-damping O-ring. It ensures the injector is correctly positioned while reducing movement and absorbing vibration within the fuel system.

Manufactured from durable rubber material, this locating bush is engineered to withstand fuel system conditions, heat, and long-term use while maintaining flexibility and sealing performance.

A direct replacement part, this injector locating inner bush is essential for maintaining proper injector alignment, reducing vibration, and ensuring reliable fuel delivery.

Key Features

• Direct replacement fuel injector inner locating bush / O-ring
• Suitable for Porsche 928S (M28.19 / M28.20 / M28.21 / M28.22)
• Also used in various compatible vehicle applications (including Mercedes)
• Provides injector positioning and vibration damping
• Durable rubber construction for long-term performance
• OEM-style fit and function

Function and Purpose

This locating bush acts as both a positioning guide and vibration damper for the fuel injector.

It helps to:

• Secure the injector in its correct position
• Absorb vibration within the fuel system
• Improve sealing and stability
• Support consistent fuel delivery and injector performance

Why Replace Your Injector Locating Bush

Over time, rubber sealing and damping components can degrade.

Common issues include:

• Hardened or cracked rubber
• Loss of elasticity and damping ability
• Poor injector seating or movement
• Fuel system vibration or instability

Replacing the locating bush restores proper injector fitment and improves overall system performance.



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

311133261A
311133261A

The product you are viewing cross references to these numbers
311133261A/1
Product Information
Product Information

Fuel Injector Locating Bush Inner – Injector Mounting O-Ring & Vibration Damper
Sold each

High-quality fuel injector locating bush designed for Porsche 928S models with engines M28.19, M28.20, M28.21, and M28.22, and also used in various other applications including select Mercedes models.

Fits:

  • Porsche 928S 4.7L 1981-83
  • Porsche 928S2 4.7L 1984-86
  • Porsche 914-4 (1970-1976)

Diagram ref no 27

This component is mounted over the fuel injector and functions as both a locating bearing and vibration-damping O-ring. It ensures the injector is correctly positioned while reducing movement and absorbing vibration within the fuel system.

Manufactured from durable rubber material, this locating bush is engineered to withstand fuel system conditions, heat, and long-term use while maintaining flexibility and sealing performance.

A direct replacement part, this injector locating inner bush is essential for maintaining proper injector alignment, reducing vibration, and ensuring reliable fuel delivery.

Key Features

• Direct replacement fuel injector inner locating bush / O-ring
• Suitable for Porsche 928S (M28.19 / M28.20 / M28.21 / M28.22)
• Also used in various compatible vehicle applications (including Mercedes)
• Provides injector positioning and vibration damping
• Durable rubber construction for long-term performance
• OEM-style fit and function

Function and Purpose

This locating bush acts as both a positioning guide and vibration damper for the fuel injector.

It helps to:

• Secure the injector in its correct position
• Absorb vibration within the fuel system
• Improve sealing and stability
• Support consistent fuel delivery and injector performance

Why Replace Your Injector Locating Bush

Over time, rubber sealing and damping components can degrade.

Common issues include:

• Hardened or cracked rubber
• Loss of elasticity and damping ability
• Poor injector seating or movement
• Fuel system vibration or instability

Replacing the locating bush restores proper injector fitment and improves overall system performance.



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

311133261A
311133261A

The product you are viewing cross references to these numbers
Special Order item
311133263
Product Information
Product Information
Fuel injector outer bush.

Fits:
Porsche 914-4 1.7
Porsche 914 1.8/2.0
Porsche 928 1980-84

Diagram ref no 23

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

311133263
311133263
022906031A

The product you are viewing cross references to these numbers
311133263/1
Product Information
Product Information

Fuel Injector Locating Bush – Injector Mounting O-Ring & Vibration Damper
Sold each

High-quality fuel injector locating bush designed for Porsche 928S models with engines M28.19, M28.20, M28.21, and M28.22, and also used in various other applications including select Mercedes models.

Fits:

  • Porsche 928S 4.7L 1981-83
  • Porsche 928S2 4.7L 1984-86
  • Porsche 914-4 (1970-1976)

Diagram ref no 25

This component is mounted over the fuel injector and functions as both a locating bearing and vibration-damping O-ring. It ensures the injector is correctly positioned while reducing movement and absorbing vibration within the fuel system.

Manufactured from durable rubber material, this locating bush is engineered to withstand fuel system conditions, heat, and long-term use while maintaining flexibility and sealing performance.

A direct replacement part, this injector locating bush is essential for maintaining proper injector alignment, reducing vibration, and ensuring reliable fuel delivery.

Key Features

• Direct replacement fuel injector locating bush / O-ring
• Suitable for Porsche 928S (M28.19 / M28.20 / M28.21 / M28.22)
• Also used in various compatible vehicle applications (including Mercedes)
• Provides injector positioning and vibration damping
• Durable rubber construction for long-term performance
• OEM-style fit and function

Function and Purpose

This locating bush acts as both a positioning guide and vibration damper for the fuel injector.

It helps to:

• Secure the injector in its correct position
• Absorb vibration within the fuel system
• Improve sealing and stability
• Support consistent fuel delivery and injector performance

Why Replace Your Injector Locating Bush

Over time, rubber sealing and damping components can degrade.

Common issues include:

• Hardened or cracked rubber
• Loss of elasticity and damping ability
• Poor injector seating or movement
• Fuel system vibration or instability

Replacing the locating bush restores proper injector fitment and improves overall system performance.



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

311133263
311133263
022906031A

The product you are viewing cross references to these numbers
039906031A/1
Product Information
Product Information
Fuel injector
OE Match fuel injector for Porsche 914 2.0 models from 1970 to 1976. This replacement injector helps restore correct fuel delivery, smooth running, reliable starting, and proper engine performance.
Sold individually, 4 required per vehicle

Fits:
Porsche 914 2.0, engine   M GB0 000 001>>
Porsche 914 2.0, engine   M GC0 000 001>>

Diagram ref no 34

The fuel injector delivers a controlled amount of fuel into the engine intake system. Correct injector operation supports clean combustion, stable idle, smooth throttle response, and reliable fuel economy.

Functions
•  Replaces the fuel injector
  Helps restore correct fuel delivery
  Supports smooth idle and clean acceleration
  Helps reduce hesitation, misfire, and poor running
  Suitable for fuel injection service or engine restoration
  OE Match replacement for Porsche 914 2.0 fuel system repair
  Fits listed Porsche 914 2.0 engine applications

Why Replace This Part?
Fuel injectors can become blocked, worn, leaking, or electrically faulty due to age, fuel contamination, varnish build-up, and long-term use. A faulty injector may cause rough idle, poor starting, hesitation, misfire, uneven running, fuel smell, high fuel consumption, or reduced performance. Replacing worn injectors helps restore correct fuelling and reliable engine operation.

When to Replace This Part
  Engine runs rough or misfires
  Starting is difficult or inconsistent
  Fuel injector is leaking, blocked, or faulty
  Idle is unstable or uneven
  Acceleration hesitation or flat spots are present
  Fuel system service or diagnostic repair is being carried out
  Porsche 914 engine restoration is in progress

Where it fits on the car
This injector fits within the engine fuel injection system on Porsche 914 2.0 models.

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

039906031A
039906031A

The product you are viewing cross references to these numbers
022906031A/1
Product Information
Product Information
Fuel injector
OE Match fuel injector for Porsche 914-4 1.7 models from 1970 to 1976. This replacement injector helps restore correct fuel delivery, smooth running, reliable starting, and proper engine performance.
Sold individually, 4 required per vehicle

Fits:
Porsche 914-4 1.7, engine  M >> W0 057 460

Diagram ref no 34

The fuel injector delivers a controlled amount of fuel into the engine intake system. Correct injector operation supports clean combustion, stable idle, smooth throttle response, and reliable fuel economy.

Functions
•  Replaces the fuel injector
  Helps restore correct fuel delivery
  Supports smooth idle and clean acceleration
  Helps reduce hesitation, misfire, and poor running
  Suitable for fuel injection service or engine restoration
  OE Match replacement for Porsche 914-4 1.7 fuel system repair
  Fits listed Porsche 914-4 1.7 engine applications

Why Replace This Part?
Fuel injectors can become blocked, worn, leaking, or electrically faulty due to age, fuel contamination, varnish build-up, and long-term use. A faulty injector may cause rough idle, poor starting, hesitation, misfire, uneven running, fuel smell, high fuel consumption, or reduced performance. Replacing worn injectors helps restore correct fuelling and reliable engine operation.

When to Replace This Part
  Engine runs rough or misfires
  Starting is difficult or inconsistent
  Fuel injector is leaking, blocked, or faulty
  Idle is unstable or uneven
  Acceleration hesitation or flat spots are present
  Fuel system service or diagnostic repair is being carried out
  Porsche 914 engine restoration is in progress

Where it fits on the car
This injector fits within the engine fuel injection system on Porsche 914-4 1.7 models.

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

022906031A
022906031A

The product you are viewing cross references to these numbers
91461200715/1
Product Information
Product Information
Ignition harness. Porsche 914 2.0L

oematch

Fits:
Porsche 914 2.0L

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

91461200715
91461200715

The product you are viewing cross references to these numbers
DISPLAYING 1 to 10 (of 10 products)
Also found on these pages
About Fuel Injectors

Fuel Injectors – Precision Fuel Delivery for Porsche Performance and Efficiency

Fuel injectors are a crucial component in your Porsche’s engine management system, ensuring the precise amount of fuel is delivered to each cylinder for clean, efficient combustion. A properly functioning injector optimises power output, throttle response, and fuel economy — maintaining the performance standards Porsche is known for.

At Design911, we offer a comprehensive range of  fuel injectors designed for Porsche models old and new — from air-cooled classics to the latest turbocharged engines. Built to manufacturer-quality standards using advanced materials and precision nozzles, our injectors ensure accurate fuel atomisation, consistent spray patterns, and long-term durability under extreme temperatures and pressures.

Whether you’re restoring a 911, maintaining a Cayman, or upgrading for performance driving, our injectors are engineered to deliver clean, efficient combustion and consistent engine response.

What Do Fuel Injectors Do?

Fuel injectors are electronically controlled valves that deliver precise amounts of pressurised fuel into the combustion chamber or intake manifold.

Core Functions:

  • Atomise and inject fuel for efficient combustion.
  • Ensure consistent air-fuel ratio across all cylinders.
  • Improve engine responsiveness, power, and economy.
  • Support emissions control by maintaining clean, complete fuel burn.

Every Porsche engine relies on its injectors for accurate fuel delivery — a vital factor in maintaining both performance and efficiency.

Why Do Fuel Injectors Fail?

Fuel injectors are exposed to heat, pressure, and fuel impurities, making them prone to gradual wear or clogging over time.

Common Causes of Failure Include:

  • Fuel contamination, leading to clogging or restricted flow.
  • Carbon build-up on the nozzle tips, disrupting spray pattern.
  • Electrical or coil failure, affecting signal timing.
  • Internal leaks due to seal deterioration or corrosion.
  • Ethanol degradation, which can damage internal components.

Symptoms of injector failure include rough idling, poor acceleration, increased fuel consumption, misfires, or difficulty starting — all signs of inconsistent fuel delivery.

Why Replace with Precision-Engineered Fuel Injectors?

Replacing worn or clogged injectors restores proper fuel delivery, maximising power, smoothness, and efficiency. Our
performance-grade, direct-fit injectors are designed to provide consistent fuel flow, superior atomisation, and long service life.

Key Benefits:

  • Restores power and throttle response.
  • Improves fuel economy and engine smoothness.
  • Prevents misfires, stalling, and hard starts.
  • Reduces emissions through cleaner combustion.
  • Crafted from high-quality, corrosion-resistant materials.
  • Direct-fit design for easy installation and long-term reliability.

Perfect for preventative maintenance or performance upgrades, these injectors deliver manufacturer-level precision and durability for every Porsche engine.

Highlights:

  • High-quality replacement fuel injectors for Porsche models.
  • Precision-engineered nozzles for accurate atomisation.
  • Tested for pressure stability and spray accuracy.
  • Improves power, efficiency, and emissions performance.
  • Compatible with classic and modern Porsche engines.
  • Essential for restorations, rebuilds, and tuning projects.

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