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Spark Plugs

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DISPLAYING 17 to 27 (of 27 products)
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99970176141
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Spark plug shaft seal. 28 x 2.

porsche

Fits:
Porsche 986 Boxster 2.7L / 3.2L 2002-04
Porsche 987.1 Boxster 2.7L / 3.2L / 3.4L 2005-08
Porsche 987C.1 Cayman 2.7L / 3.4L 2005-08
Porsche 996 Carrera 3.6L 2001-05
Porsche 997.1 Carrera 3.6 / 3.8L 2004-08

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Diagram ref no 33

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99970176141
99970176140
99970176141
260.470
99610532552
996.105.325.52
260.470

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99660210500
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Spark plug socket.
6 Required per engine. Price is for each.

porsche

Fits:
Porsche 986 Boxster 2.7L / S 3.2L 2003-04
Porsche 987 Boxster MKI 2005-08
Porsche 987 C Cayman MKI 2005-08
Porsche 996 Carrera 2/4/4S 3.6L 2002-05
Porsche 996 Turbo 2001-05
Porsche 997 Carrera 2005-08
Porsche 997 Turbo 2007-09
Porsche 996 GT3 1999-05
Porsche 997 GT3 >>2008

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99660210500
99660210500

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99660210500/1
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Spark Plug Socket.
6 Required per engine. Price is for each.

beru

Fits:
Porsche 986 Boxster 2.7L / S 3.2L 2003-04
Porsche 987 Boxster MKI 2005-08
Porsche 987 C Cayman MKI 2005-08
Porsche 996 Carrera 2/4/4S 3.6L 2002-05
Porsche 996 Turbo 2001-05
Porsche 997 Carrera 2005-08
Porsche 997 Turbo 2007-09
Porsche 996 GT3 1999-05
Porsche 997 GT3 >>2008

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99660210500
99660210500
99660210501

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99917010390/3
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Spark plug, FR6 DPP332 / Z185, Double-iridium
High-quality OE Match double-iridium spark plug engineered to replicate the original Porsche factory spark plug in fit, heat range, and performance. Specifically designed for the demanding combustion environment of the Porsche 997 Turbo and 997 GT2, this plug delivers reliable ignition and long-lasting durability under high thermal and mechanical load.
Sold individually, 6 spark plugs required per engine.

Fits:
Porsche 997 Turbo 3.6L 2007 - 2009 (M97.70)
Porsche 997 GT2 2007 - 2009 (M97.70)
Porsche 997.2 GT2 RS 2011 - 2013

This OE Match double-iridium spark plug features iridium-tipped electrodes on both the centre and ground sides, providing a finer, more durable firing point compared to standard plugs. The double-iridium design enhances spark efficiency, improves wear resistance, and supports stable combustion even under the elevated temperatures and pressures typical of turbocharged engines.

Manufactured to OE-equivalent standards, this spark plug offers precise thread dimensions, optimal electrode geometry, and a specific heat range calibrated for performance engines. It helps maintain smooth idle quality, crisp throttle response, efficient fuel burn, and consistent power delivery - all critical for the high-output Porsche 997 Turbo and GT2 platforms.

Designed as a direct replacement, this spark plug installs without modification and is ideal for routine service, tune-ups, or replacing worn plugs to preserve peak engine performance.

The spark plug delivers a precisely timed electrical spark that ignites the air-fuel mixture in the combustion chamber. The double-iridium construction supports a stable, strong spark and helps maintain efficient combustion over extended use.

Function:
•  Generates reliable ignition for efficient combustion
  Double-iridium electrodes improve spark stability and electrode life
  Supports smooth idle and responsive acceleration
  Helps maintain power delivery and fuel efficiency under boost

Spark plugs degrade over time due to repeated heat cycles, high pressures, and electrical load. On performance engines like the 997 Turbo and GT2, worn or incorrect plugs can lead to misfires, hesitation, reduced power, and uneven combustion. Installing an OE Match double-iridium spark plug ensures dependable ignition performance, extended service life, and preserved driving characteristics aligned with Porsche engineering.

When to replace:
  Engine misfires or rough idle
  Loss of throttle response or power under boost
  Increased fuel consumption
  At manufacturer-recommended service intervals
  During routine ignition servicing or tune-ups

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99917010390
99917010390

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99917022390
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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

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99917022390
99917022390
0242245559
9991700IK22

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99917022390/1
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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

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99917022390
99917022390
0242245559

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99917022390/3
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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

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99917022390
99917022390
0242245559
9991700IK22
FGR 5KQEO

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Special Order item
99917023890
Product Information
Product Information
Spark plug 
6 Required per engine. Price is for each.

porsche

Fits:

Porsche 997 GT3 RS
Porsche 997 GT3 MKII 2010>>

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99917023890
99917012990
99917023890

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99917023890/1
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Spark plug 
6 Required per engine. Price is for each.

Fits:
Porsche 997 GT3 RS
Porsche 997 GT3 MKII 2010>>

Related reference numbers
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99917023890
99917012990
99917023890

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99917010390
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Spark plug, FR6 DPP332 / Z185
The Porsche Genuine OE Spark Plug is an original equipment ignition component designed and manufactured to Porsche’s exact factory specifications for high-performance engines. This OE spark plug (commonly referenced as FR6 DPP 332) delivers reliable, consistent ignition performance exactly as fitted in production.
Sold individually, 6 spark plugs required per engine.

Fits:
Porsche 997 Turbo 3.6L 2007 - 2009 (M97.70)
Porsche 997 GT2 2007 - 2009 (M97.70)
Porsche 997.2 GT2 RS 2011 - 2013

Spark plugs play a vital role in engine combustion by igniting the air-fuel mixture within each cylinder. The OE spark plug produces a stable, timed spark that enables efficient combustion, helping to maximise engine power output, maintain smooth running, and support proper emissions control. Using Porsche-specified plugs ensures that ignition characteristics such as heat range and gap are matched precisely to OEM requirements.

Functions & Technical Role:
  Ignition source: Delivers the spark needed for combustion in each cylinder
  Optimised combustion: Helps the engine run smoothly across idle, part-throttle, and full-load conditions
  OEM heat range & gap: Designed for factory combustion tuning
  Maintains performance: Reduces misfires and supports efficient fuel use
  Durable construction: Genuine components built to last in high-RPM applications

Over time, spark plugs wear due to electrode erosion and combustion by-product deposits. This wear can lead to misfires, rough idle, throttle hesitation, and reduced fuel economy. Replacing aged plugs restores precise ignition timing and combustion quality - preserving engine efficiency, performance, and reliability at design-intent levels.

When to replace spark plugs:
  At manufacturer-recommended service intervals
  During routine engine tune-ups
  If experiencing misfires or unstable idle
  When hard starting occurs
  If fuel economy drops
  During engine rebuilds or diagnostics

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99917010390
99917010390

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Special Offer
99917010390/1
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Product Information
Spark plug, FR6 DPP332, 
This Bosch double platinum spark plug is a high-quality ignition component manufactured to Porsche OE specification. This spark plug provides precise fitment, dependable ignition performance, and long-term reliability, making it ideal for routine servicing or maintaining OEM standards.
Sold individually, 6 spark plugs required per engine.

Fits:
Porsche 997 Turbo 3.6L 2007-09 (M97.70)
Porsche 997 GT2 2007-09 (M97.70)

Featuring double platinum electrodes, this spark plug is designed to deliver a strong, consistent spark with improved durability and resistance to wear. Platinum technology helps maintain optimal spark gap over a longer service life, supporting efficient combustion, smooth engine operation, and reliable cold starting. Compared to standard plugs, double platinum designs offer enhanced longevity and stable performance under demanding driving conditions.

Key Features & Benefits:
Genuine Bosch manufacture
  Double platinum electrode design for extended service life
  Strong, consistent ignition performance
  OEM-quality replacement Supplied as single spark plug

Spark plugs are essential for reliable ignition and efficient combustion. Over time they wear and lose effectiveness, which can cause misfires, rough running, reduced performance, and higher fuel consumption. Replacing them at the correct interval helps maintain smooth engine operation and protects the ignition system from unnecessary strain.

When spark plugs should be replaced:
  At the manufacturer’s recommended service interval
  If the engine misfires or runs unevenly
  When cold starting becomes difficult
  If fuel economy or performance drops
  When plugs show signs of wear, fouling, or corrosion
  During major servicing or engine maintenance

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99917010390
0242240628
99917010390
99917022190
99917023990

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DISPLAYING 17 to 27 (of 27 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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