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Spark Plugs
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Related, superseded, cross reference or alternative numbers for comparison.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
The product you are viewing cross references to these numbers
- 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 964 (911) TURBO 3.3L 1991-93
- Porsche 964 (911) TURBO 3.6L 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 TURBO 2000-05
- Porsche 996 GT2 2001-05
- Porsche 996 GT3 MKI 1999-02
- Porsche 996 GT3 MKII 2003>>
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
The product you are viewing cross references to these numbers
- 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 964 (911) TURBO 3.3L 1991-93
- Porsche 964 (911) TURBO 3.6L 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 TURBO 2000-05
- Porsche 996 GT2 2001-05
- Porsche 996 GT3 MKI 1999-02
- Porsche 996 GT3 MKII 2003>>
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.