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Spark Plugs

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DISPLAYING 33 to 43 (of 43 products)
1 2 3
Special Order item
99917019590
Product Information
Product Information
Spark plug, 14FR 6LDU.
Genuine Porsche original equipment (OE) ignition component. The spark plug provides a controlled electrical spark within the combustion chamber to ignite the air-fuel mixture. This ignition initiates combustion and enables the engine to produce power smoothly and efficiently across the RPM range.
Sold individually, 6 required per engine.

Fits:
Porsche 964 C2 / C4 1989 - 1993
Porsche 964 RS 3.6L / 3.8L 1991 - 1993
Porsche 964 TURBO 3.3L / 3.6L 1991 - 1993

Porsche 993 C2 / C4 1994 - 1997
Porsche 993 C2S / C4S 1994 - 1997
Porsche 993 RS 1994- 1997
Porsche 993 Turbo / Turbo S 1994 - 1997
Porsche 993 GT2 1994 - 1997

Porsche 996 TURBO 2000 - 2005
Porsche 996 GT2 2001 - 2005
Porsche 996 GT3 MKI 1999 - 2002
Porsche 996 GT3 MKII 2003>>

This spark plug meets the exact specifications used by Porsche on the assembly line and is fitted as standard on a range of Porsche models, ensuring precise ignition performance and long-term reliability.

Function:
•  Generates reliable ignition sparks for efficient combustion
•  Helps maintain consistent engine performance and power delivery
•  Supports smooth idle and throttle response

Spark plugs are a critical engine component that wear with use due to extreme heat, combustion pressures, and electrical stress. Worn plugs can lead to poor idle quality, misfires, reduced power, rough starts, and increased fuel consumption. Installing a genuine OE Porsche spark plug ensures the ignition system functions exactly as designed and helps preserve engine health, efficiency, and performance.

When to replace:
  Rough or unstable engine idle
  Misfires or engine hesitation
  Increased fuel consumption
  After reaching the manufacturer’s recommended service interval
  During tune-up or ignition system servicing

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Related, superseded, cross reference or alternative numbers for comparison.

99917019590
99917019590
99917018390
99917019290

The product you are viewing cross references to these numbers
Special Offer
99917019590/1
Product Information
Product Information
Spark plug, 14FR 6LDU.
The spark plug delivers the electrical spark that ignites the air-fuel mixture in the combustion chamber. Reliable ignition is crucial for smooth engine operation, efficient fuel consumption, and optimal power delivery.
Sold individually, 6 required per engine.

Fits:
Porsche 964 C2 / C4 1989 - 1993
Porsche 964 RS 3.6L / 3.8L 1991 - 1993
Porsche 964 TURBO 3.3L / 3.6L 1991 - 1993

Porsche 993 C2 / C4 1994 - 1997
Porsche 993 C2S / C4S 1994 - 1997
Porsche 993 RS 1994- 1997
Porsche 993 Turbo / Turbo S 1994 - 1997
Porsche 993 GT2 1994 - 1997

Porsche 996 TURBO 2000 - 2005
Porsche 996 GT2 2001 - 2005
Porsche 996 GT3 MKI 1999 - 2002
Porsche 996 GT3 MKII 2003>>

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

99917019590
99917019590
0242240566
99917019290
99917018390

The product you are viewing cross references to these numbers
Special Offer
99917019590/2
Product Information
Product Information
Spark plug, 14FR 6LDU.
The spark plug delivers the electrical spark that ignites the air-fuel mixture in the combustion chamber. Reliable ignition is crucial for smooth engine operation, efficient fuel consumption, and optimal power delivery.
Sold individually, 6 required per engine.

Fits:
Porsche 964 C2 / C4 1989 - 1993
Porsche 964 RS 3.6L / 3.8L 1991 - 1993
Porsche 964 TURBO 3.3L / 3.6L 1991 - 1993

Porsche 993 C2 / C4 1994 - 1997
Porsche 993 C2S / C4S 1994 - 1997
Porsche 993 RS 1994- 1997
Porsche 993 Turbo / Turbo S 1994 - 1997
Porsche 993 GT2 1994 - 1997

Porsche 996 TURBO 2000 - 2005
Porsche 996 GT2 2001 - 2005
Porsche 996 GT3 MKI 1999 - 2002
Porsche 996 GT3 MKII 2003>>

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

99917019590
99917019590
99917018390
99917019290

The product you are viewing cross references to these numbers
Special Offer
99917019590/3
Product Information
Product Information
Spark plug, 14FR 6LDU.
The spark plug generates a controlled electrical spark inside the combustion chamber, igniting the air-fuel mixture. This essential action supports smooth engine starts, balanced combustion, efficient fuel usage, and stable power output.
Sold individually, 6 required per engine.

Fits:
Porsche 964 C2 / C4 1989 - 1993
Porsche 964 RS 3.6L / 3.8L 1991 - 1993
Porsche 964 TURBO 3.3L / 3.6L 1991 - 1993

Porsche 993 C2 / C4 1994 - 1997
Porsche 993 C2S / C4S 1994 - 1997
Porsche 993 RS 1994- 1997
Porsche 993 Turbo / Turbo S 1994 - 1997
Porsche 993 GT2 1994 - 1997

Porsche 996 TURBO 2000 - 2005
Porsche 996 GT2 2001 - 2005
Porsche 996 GT3 MKI 1999 - 2002
Porsche 996 GT3 MKII 2003>>


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

99917019590
99917019590
14FR6LDU
99917019290
99917018390

The product you are viewing cross references to these numbers
Special Offer
99917019590/5
Product Information
Product Information
Spark plug 14FR6LDU.
This OE Match spark plug restores proper ignition timing and efficient combustion, helping the engine run smoothly and respond confidently to throttle inputs. Designed for direct installation without modification, it’s ideal for regular servicing, tune-ups, and maintenance.
Sold individually, 6 required per engine.

Fits:
Porsche 964 C2 / C4 1989 - 1993
Porsche 964 RS 3.6L / 3.8L 1991 - 1993
Porsche 964 TURBO 3.3L / 3.6L 1991 - 1993

Porsche 993 C2 / C4 1994 - 1997
Porsche 993 C2S / C4S 1994 - 1997
Porsche 993 RS 1994- 1997
Porsche 993 Turbo / Turbo S 1994 - 1997
Porsche 993 GT2 1994 - 1997

Porsche 996 TURBO 2000 - 2005
Porsche 996 GT2 2001 - 2005
Porsche 996 GT3 MKI 1999 - 2002
Porsche 996 GT3 MKII 2003>>

OE Match spark plug for Porsche - direct replacement for part 99917019590, engineered to deliver reliable ignition performance, consistent combustion, and proper fuel burn with OE-equivalent fit and function.

The spark plug provides a controlled electrical spark inside the combustion chamber to ignite the air-fuel mixture. This ignition process is essential for engine power, efficiency, and smooth running.

Function:
•  Produces the ignition spark for combustion
  Supports smooth idle and throttle response
  Helps maintain proper engine efficiency and fuel burn
  Designed to match OE Porsche performance and heat range.

A deteriorated or worn spark plug can cause misfires, rough running, sluggish acceleration, and lower fuel efficiency. Replacing with an OE Match spark plug ensures ignition performance that closely mirrors the original specification, helping maintain engine health and reliable operation.

When to replace:
 Rough or unstable idle
 Hesitation or lack of power under acceleration
 Poor fuel economy
 Misfire codes or engine warning signs
  At regular maintenance intervals or during tune-ups

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

99917019590
99917019590
99917018390
99917019290

The product you are viewing cross references to these numbers
Special Offer
99917020791/1
Product Information
Product Information
Spark plug FGR 6 KQE.
Price is for each.

bosch

Fits:

Porsche Boxster 986 2.7L 1999-02  (6 Required per engine.)
Porsche Boxster S 986 3.2L 1999-02  (6 Required per engine.)
Porsche Boxster 986 2.7L 2003-04  (6 Required per engine.)
Porsche Boxster S 986 3.2L 2003-04  (6 Required per engine.)
Porsche 996 C2 3.4L 1997-08/01  (6 Required per engine.)
Porsche 996 C4 3.4L 1997-08/01  (6 Required per engine.)
Porsche 955 Cayenne V8 S M48.00 2003-06  (8 Required per engine.)



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

99917020791
99917021890
99917020791
0242240587
0242240578

The product you are viewing cross references to these numbers
Special Order item
99917020791
Product Information
Product Information
Spark Plug 14FGR 6KQU. Price is for each.

porsche

Fits:
Porsche Boxster 986 2.7L 1999-02  (6 Required per engine.)
Porsche Boxster S 986 3.2L 1999-02  (6 Required per engine.)
Porsche Boxster 986 2.7L 2003-04  (6 Required per engine.)
Porsche Boxster S 986 3.2L 2003-04  (6 Required per engine.)
Porsche 996 C2 3.4L 1997-08/01  (6 Required per engine.)
Porsche 996 C4 3.4L 1997-08/01  (6 Required per engine.)
Porsche 955 Cayenne V8 S M48.00 2003-06  (8 Required per engine.)

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

99917020791
99917020791
99917021890

The product you are viewing cross references to these numbers
Special Offer
99917020791/2
Product Information
Product Information
Spark plug 14FGR 6KQU.
6 Required per engine. Price is for each.

beru

Fits:
Porsche 986 Boxster 2.7L 2000-04
Porsche 986 Boxster S 3.2L 2000-04
Porsche 996 Carrera 3.4L >>2001

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

99917020791
99917020791
99917021890

The product you are viewing cross references to these numbers
Special Order item
99917022390
Product Information
Product Information
Spark Plug FGR 5KQEO.
6 Required per engine. Price is for each.

porsche

Fits:
Porsche 996 Carrera 3.6L 2001>>
Porsche 987 Boxster 2.7L / 3.2L 2005-08
Porsche 987C Cayman 2.7L / 3.2L 2005-08
Porsche 997 Carrera 3.6L / 3.8L 2005-08

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

99917022390
99917022390
0242245559
9991700IK22

The product you are viewing cross references to these numbers
Special Offer
99917022390/1
Product Information
Product Information
Spark Plug FGR 5KQEO.
6 Required per engine. Price is for each.

bosch

Fits:
Porsche 996 Carrera 3.6L 2001>>
Porsche 987 Boxster 2.7L / 3.2L 2005-08
Porsche 987C Cayman 2.7L / 3.2L 2005-08
Porsche 997 Carrera 3.6L / 3.8L 2005-08

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

99917022390
99917022390
0242245559

The product you are viewing cross references to these numbers
Special Offer
99917022390/3
Product Information
Product Information
Spark Plug FGR 5KQEO.
The spark plug delivers a precise electrical spark to ignite the air-fuel mixture in the combustion chamber. This critical function ensures efficient combustion, smooth engine operation, consistent power delivery, and proper fuel economy.
6 Required per engine. Price is for each.

Fits:
Porsche 996 Carrera 3.6L 2001 - 2005
Porsche 987 Boxster 2.7L / 3.2L 2005 - 2008
Porsche 987C Cayman 2.7L / 3.2L 2005 - 2008
Porsche 997 Carrera 3.6L / 3.8L 2005 - 2008

Improper or worn spark plugs can cause rough idle, poor throttle response, misfires, and reduced fuel economy. This OE Match spark plug restores proper ignition timing and combustion performance, helping your Porsche run smoothly and efficiently.

Designed for direct installation without modification, this plug is ideal for engine tune-ups, maintenance services, and restorations where an OE-equivalent part is required.

Function:
Generates the ignition spark to start and sustain combustion
 Helps maintain smooth idle and acceleration
 Optimizes engine fuel efficiency
 Designed to match OE Porsche heat range and performance.

A worn or incorrect spark plug can lead to engine misfires, rough running, reduced power, increased emissions, poor fuel economy, and hard starting. Replacing old or degraded plugs with a high-quality OE Match spark plug ensures proper ignition, reliable starting, smooth performance, and long-term engine health.

When to replace:
  Rough idle or misfires
  Poor acceleration or throttle response
  Increased fuel consumption
  After the manufacturer’s recommended interval
  During regular engine tune-up or service

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

99917022390
99917022390
0242245559
9991700IK22
FGR 5KQEO

The product you are viewing cross references to these numbers
DISPLAYING 33 to 43 (of 43 products)
1 2 3
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About Spark Plugs

Porsche Spark Plugs | Design911 High-Performance Ignition Components for Power & Efficiency

Spark plugs play a vital role in the performance, efficiency, and reliability of your Porsche’s engine. They ignite the air-fuel mixture inside the combustion chamber, creating the precise explosion needed to generate power. High-quality spark plugs ensure clean ignition, smooth acceleration, and reduced emissions — helping your Porsche perform exactly as intended on every drive.

At Design911, we stock a full range of spark plugs from leading manufacturers, engineered for superior conductivity, heat resistance, and long service life. Available in iridium, platinum, and copper-core designs, each spark plug is precision-crafted to match your Porsche’s specific ignition requirements. Ideal for routine maintenance, tuning, or complete engine rebuilds, our spark plugs ensure reliable performance from idle to redline.

What Do Spark Plugs Do?

Spark plugs are critical ignition components that deliver the electric spark required to ignite the air-fuel mixture in the combustion chamber.

Core Functions:
• Create a high-voltage spark to initiate combustion.
• Ensure smooth, efficient engine operation.
• Support optimal fuel economy and throttle response.
• Reduce emissions through clean, consistent ignition.
• Maintain balanced power delivery and idle stability.

When properly maintained, spark plugs enhance both performance and fuel efficiency, ensuring your Porsche runs with precision and reliability.

Why Do Spark Plugs Fail or Degrade?

Spark plugs operate under intense pressure, heat, and chemical exposure — gradually wearing down over time and mileage.

Common Causes of Failure Include:
• Electrode wear from prolonged high-temperature operation.
• Carbon or oil fouling from incomplete combustion.
• Cracked or degraded insulators due to thermal stress.
• Incorrect heat range or plug gap settings.
• Age-related corrosion or weakened spark performance.

Failing spark plugs can cause rough idling, misfires, reduced fuel economy, and loss of power — making regular replacement essential to maintain your Porsche’s performance.

Why Replace or Upgrade Your Porsche Spark Plugs?

Replacing worn spark plugs restores full ignition efficiency, fuel economy, and responsiveness. Upgrading to performance-grade materials can also improve durability and spark precision for motorsport or tuned applications.

Key Benefits:
• Restores smooth acceleration and idle stability.
• Improves fuel efficiency and throttle response.
• Reduces misfires, vibration, and engine hesitation.
• Available in platinum, iridium, and copper-core configurations.
• Compatible with Porsche 911, 944, 968, Boxster, Cayman, Panamera, and Macan models.
• Ideal for servicing, tuning, or complete engine rebuilds.

Design911’s Porsche spark plugs deliver performance, precision, and protection — ensuring consistent ignition and long-lasting reliability for your Porsche engine.

Highlights

• Premium Porsche spark plugs for all engine types.
• Precision-engineered for reliable combustion and performance.
• Available in standard and high-performance variants.
• Improves efficiency, throttle response, and emissions.
• Fits both classic and modern Porsche models.
• Perfect for servicing, performance tuning, or restoration.

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