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Spark Plugs

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DISPLAYING 1 to 10 (of 10 products)
94860210414/2X8
Product Information
Product Information
Ignition Coil. Set of 8.

Fits:

Porsche 957 Cayenne 4.8L V8 S / Turbo 2007-10
Porsche 958 Cayenne 4.8L V8 S / GTS / Turbo 2010-17
Porsche 970 Panamera 4.8L V8 S / Turbo 2009-16


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94860210414
94860210414
94860210404
9486210410
94860210411
94860210412
94860210413

The product you are viewing cross references to these numbers
94860210414/1KIT
Product Information
Product Information
Ignition coil. 8 required per engine.
PACK OF 8

Fits:
Porsche 970 Panamera S / 4S / Turbo

Porsche Cayenne MKII 957 4.8L V8 S 2008-10
Porsche Cayenne MKII 957 4.8L V8 GTS 2008-10
Porsche Cayenne MKII 957 4.8L V8 Turbo 2008-10

Porsche Cayenne MKIII 958 4.8L V8 S 2011>>
Porsche Cayenne MKIII 958 4.8L V8 GTS 2011>>
Porsche Cayenne MKIII 958 4.8L V8 Turbo 2011>>

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Related, superseded, cross reference or alternative numbers for comparison.

94860210414
94860210404
94860210413
94860210410
94860210411
94860210412
0040102042
0986221069
94860210402
94860210404
94860210406
94860210410
94860210411
94860210412
94860210413
94810514600

The product you are viewing cross references to these numbers
99917022890/2x8
Product Information
Product Information
Spark plugs, FR6 NPP, Double-iridium
OE Match double-iridium Spark Plug Set (Pack of 8) is designed to match the original Porsche factory spark plugs in fit, heat range, and ignition performance. Supplied as a complete set of eight, it is specifically intended for Porsche V8 turbocharged engines.
PACK OF 8

Fits:
Porsche 957 Cayenne Turbo / Turbo S 4.8L 2008 - 2010
Porsche 958 Cayenne Turbo / Turbo S 4.8L 2011 - 2018

Porsche 970 Panamera Turbo 4.8L V8 2010 - 2016

This OE Match double-iridium spark plug set includes eight identical spark plugs, each manufactured to OE-equivalent standards for thread dimensions, electrode design, and thermal characteristics. Featuring iridium on both the centre and ground electrodes, these plugs provide a finer, more stable spark and significantly increased resistance to wear compared to conventional spark plugs.

Turbocharged Porsche V8 engines operate under extreme temperatures and cylinder pressures, placing high demands on ignition components. This OE Match set supports consistent ignition, smooth idle, responsive throttle behaviour, and efficient combustion under boost. Replacing all eight spark plugs together ensures balanced ignition across cylinders and reliable performance throughout the rev range.

Designed as direct replacements, these spark plugs install without modification and are ideal for routine servicing, scheduled maintenance, or ignition system overhaul on high-performance Porsche turbo models.

Each spark plug produces a precisely timed electrical spark to ignite the air-fuel mixture in its cylinder. As a complete set, they ensure uniform combustion across all eight cylinders, supporting smooth engine operation, strong turbo response, and consistent power delivery.

Function:
  Provides reliable ignition for all eight cylinders
  Double-iridium electrodes enhance spark stability and durability
  Supports smooth idle and responsive acceleration
  Helps maintain power delivery, fuel efficiency, and emissions control

Spark plugs in turbocharged V8 engines are exposed to extreme heat and pressure. Worn plugs can cause misfires, hesitation under boost, reduced power, and increased fuel consumption. Replacing all eight plugs with an OE Match double-iridium set restores reliable ignition, balanced combustion, and helps protect ignition coils, catalytic converters, and engine components.

When to replace:
  Engine misfires or rough idle
  Hesitation under acceleration
  Reduced throttle response or power delivery
  Increased fuel consumption
  At manufacturer-recommended service intervals
  During routine engine tune-ups or ignition servicing

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

99917022890
99917022890
99917023690
0242240637

The product you are viewing cross references to these numbers
99917022890/1x8
Product Information
Product Information
Spark Plugs, FR6 NPP.

PACK OF 8

Fits:
Porsche 957 (MKII) Cayenne Turbo / Turbo S 4.8L 2008 - 2010
Porsche 958 (MKIII) Cayenne Turbo / Turbo S 4.8L 2011 - 2018

Porsche 970 Panamera Turbo 4.8L V8 2010 - 2016

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

99917022890
99917022890
9917023690
0242240637

The product you are viewing cross references to these numbers
Special Order item
94860210414
Product Information
Product Information
Ignition Coil.
x6 Or x8 Required Per Engine.
Price Is For Each.


Fits:
Porsche 970 Panamera S / 4S / Turbo
Porsche Panamera 970 3.6L V6 2010>> *** x6 Required Per Engine ***

Porsche Cayenne MKII 957 4.8L V8 S 2008>>2010
Porsche Cayenne MKII 957 4.8L V8 GTS 2008>>2010
Porsche Cayenne MKII 957 4.8L V8 Turbo 2008>>2010

Porsche Cayenne MKIII 958 4.8L V8 S 2011>>
Porsche Cayenne MKIII 958 4.8L V8 GTS 2011>>
Porsche Cayenne MKIII 958 4.8L V8 Turbo 2011>>

Diagram Ref No 1

Related reference numbers
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94860210414
94860210404
94860210413
94860210410
94860210411
94860210412
0040102042
0986221069
94860210402
94860210404
94860210406
94860210410
94860210411
94860210412
94860210413
94810514600

The product you are viewing cross references to these numbers
94860210414/1
Product Information
Product Information
Ignition coil.
6 or 8 required per engine. Price is for each.

Fits:
Porsche 970 Panamera S / 4S / Turbo
Porsche Panamera 970 3.6L V6 2010>> *** 6 required per engine ***

Porsche Cayenne MKII 957 4.8L V8 S 2008-10
Porsche Cayenne MKII 957 4.8L V8 GTS 2008-10
Porsche Cayenne MKII 957 4.8L V8 Turbo 2008-10

Porsche Cayenne MKIII 958 4.8L V8 S 2011>>
Porsche Cayenne MKIII 958 4.8L V8 GTS 2011>>
Porsche Cayenne MKIII 958 4.8L V8 Turbo 2011>>

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

94860210414
94860210404
94860210413
94860210410
94860210411
94860210412
0040102042
0986221069
94860210402
94860210404
94860210406
94860210410
94860210411
94860210412
94860210413
94810514600

The product you are viewing cross references to these numbers
Special Offer
94860210414/2
Product Information
Product Information
Ignition Coil.
6 or 8 required per engine. Price is for each.

Fits:
Porsche 970 Panamera S / 4S / Turbo
Porsche Panamera 970 3.6L V6 2010>> *** 6 required per engine ***

Porsche Cayenne MKII 957 4.8L V8 S 2008-10
Porsche Cayenne MKII 957 4.8L V8 GTS 2008-10
Porsche Cayenne MKII 957 4.8L V8 Turbo 2008-10

Porsche Cayenne MKIII 958 4.8L V8 S 2011>>
Porsche Cayenne MKIII 958 4.8L V8 GTS 2011>>
Porsche Cayenne MKIII 958 4.8L V8 Turbo 2011>>

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

94860210414
70400012
94860210404
94860210413
94860210410
94860210411
94860210412
0040102042
0986221069
94860210402
94860210404
94860210406
94860210410
94860210411
94860210412
94860210413
94810514600

The product you are viewing cross references to these numbers
Special Offer
99917022890/2
Product Information
Product Information
Spark plug, FR6 NPP, Double-iridium
OE Match double-iridium spark plug features iridium on both the centre and ground electrodes, delivering a finer, more durable ignition point that resists wear and provides a consistently strong spark. The double-iridium design improves spark stability and longevity compared to conventional plugs, making it ideal for modern performance-oriented engines.
Sold individually, 6 or 8 spark plugs required per engine.

Fits:
Porsche 997 Turbo / Turbo S 3.8L 2010 - 2013 [6 Required]
Porsche 997 GT2 RS 2011 - 2013 [6 Required]
Porsche 991 Turbo / Turbo S 3.8L 2014 -2020 [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 - 2018 [8 Required]
Porsche 970 Panamera Turbo 4.8L V8 2010 - 2016 [8 Required]

Manufactured to OE-equivalent specifications, this spark plug is built to withstand high combustion temperatures, increased cylinder pressures, and sustained operation under boost. It helps support smooth idle quality, sharp throttle response, efficient combustion, and consistent power delivery across the rev range - all essential for turbocharged engines. This OE Match plug installs directly with no modification required and is ideal for routine servicing, tune-ups, or replacing worn plugs while preserving OE-equivalent performance characteristics.

The spark plug creates a precisely timed electrical spark to ignite the air-fuel mixture in the combustion chamber. The iridium construction ensures a stable, strong spark that promotes efficient combustion, improved throttle response, and smoother engine operation.

Function:
Generates reliable ignition for efficient combustion
  Double-iridium electrodes enhance spark stability and durability
  Supports smooth idle and responsive acceleration
  Helps maintain power delivery, fuel efficiency, and emissions control

Spark plugs are subject to high heat and combustion stress, especially in turbocharged engines. Over time, plugs can wear, leading to misfires, rough running, reduced power, and poor efficiency. Replacing worn plugs with an OE Match double-iridium spark plug helps maintain optimal ignition performance, prolongs service intervals, and protects ignition coils and catalytic converters from damage caused by incomplete combustion.

When to replace:
  Engine misfires or rough idle
  Hesitation under acceleration
  Reduced throttle response or power delivery
  Increased fuel consumption
  At manufacturer-recommended service intervals
  During routine engine tune-ups or ignition servicing

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

99917022890
99917022890
99917023690
0242240637

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 10 (of 10 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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