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Spark Plugs

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Special Order item
99760210405
Product Information
Product Information
Ignition Coil.
x6 Required Per Engine.
Price Is For Each.


Original Porsche
Please Note: If you have the older original Porsche part number 99760210400 ignition coils fitted to your vehicle you will need new longer bolts with the new original Porsche ignition coils 99760210402. The bolts part number is 90038502501 (you will need x12). This does not apply when ordering Beru brand ignition coils.

Fits:
Porsche 996 C2 / C4 / C4S 3.6L 2002>>2005
Porsche 986 Boxster 2.7L / 3.2L 2003>>2004
Porsche 996 GT3 MKI & MKII 1999>>2005
Porsche 996 Turbo 2000>>2005
Porsche 987 Boxster 2.7L / 3.2L MKI 2005>>2008
Porsche 987C Cayman 2.7L / 3.4L MKI 2006>>2008
Porsche 997 Carrera / Carrera S / Carrera 4 / Carrera 4S 3.6L / 3.8L MKI 2005>>2008
Porsche 997 GT3 2007>>2008
Porsche 997.2 GT2 RS 2007>>2009

Diagram Ref No 1

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Related, superseded, cross reference or alternative numbers for comparison.

99760210405
99760210400
99760210402
99660210400
99760210404
99760210400
0986221119
90660210200
90660210301
99660210100
99660210101
99660210200
99660210400
99760210400
99760210401
99760210402
99760210404
99760210700
99760210702
245752
2504992
99760210406
99760210405
99760210704

The product you are viewing cross references to these numbers
Special Offer
99917022890/1
Product Information
Product Information
Spark plug FR6 NPP.
Price shown is for each spark plug.

bosch

Fits:
Porsche 997 Turbo / Turbo S 3.8L 2010>> [6 Required]
Porsche 997 GT2 RS 2011>> [6 Required]
Porsche 991 Turbo / Turbo S 3.8L 2012>> [6 Required]
Porsche 957 (MKII) Cayenne Turbo / Turbo S 4.8L 2008-10 [8 Required]
Porsche 958 (MKIII) Cayenne Turbo / Turbo S 4.8L 2011>> [8 Required]
Porsche 970 Panamera Turbo 4.8L V8 2010>> [8 Required]

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Related, superseded, cross reference or alternative numbers for comparison.

99917022890
99917022890
0242240637
99917023690

The product you are viewing cross references to these numbers
Special Order item
99917023690
Product Information
Product Information
Spark Plug FR6 NPP.
Price shown is for each spark plug.

porsche

Fits:
Porsche 997 Turbo / Turbo S 3.8L 2010>> [6 Required]
Porsche 997 GT2 RS 2011>> [6 Required]
Porsche 991 Turbo / Turbo S 3.8L 2012>> [6 Required]
Porsche 957 (MKII) Cayenne Turbo / Turbo S 4.8L 2008-10 [8 Required]
Porsche 958 (MKIII) Cayenne Turbo / Turbo S 4.8L 2011>> [8 Required]
Porsche 970 Panamera Turbo 4.8L V8 2010>> [8 Required]

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

99917023690
99917022890

The product you are viewing cross references to these numbers
DISPLAYING 1 to 3 (of 3 products)
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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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