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Porsche > Cayman 987C / 981C (2005-2016) > Service Parts >

Spark Plugs

Spark Plugs

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DISPLAYING 17 to 27 (of 27 products)
1 2
Ignition coil Porsche 996 / Boxster 986 / Boxster 987 / 996 GT3 MKII - 99760210400, 99760210402, 99660210400, 99760210404, 99760210400, 0986221119, 90660210200, 90660210301, 99660210100, 99660210101, 99660210200, 99660210400, 99760210400, 99760210401, 99760210402, 99760210404, 99760210700, 99760210702, 245752, 2504992, 99760210406, 99760210405, 90660210101 - GN1050412B1, ZS036, ZS178, ZS036, ZS178
3
Ignition coil Porsche 996 / Boxster 986 / Boxster 987 / 996 GT3 MKII
99760210405/3
Product Information
Product Information
Ignition coil. 6 Required per engine. Price is for each.
The 99760210405 is the individual coil module used on the Porsche M96 and M97 M-series engines in many 986/996/987/early 997 cars. Normally should be replaced as a set of six coils (one per cylinder) 


Why these coils should be replaced 

Age / thermal breakdown: coils are exposed to heat cycles and can develop internal insulation breakdown or hairline cracks in the housing. Over time this causes weak or leaking high voltage and intermittent sparks. 

 Misfire symptoms: a failing coil will cause single-cylinder misfires (P030x codes), rough idle, reduced power, increased fuel consumption and catalytic converter heating/damage if left. These are the most common reasons owners replace coils. 

Carbon tracking / cracking: visible cracks or carbon tracking on the coil boot can provide a leakage path for spark, reducing performance and causing intermittent faults. 

Connector / wiring issues: corroded or loose coil connectors can mimic coil failures; inspect connectors when replacing coils.  


Fits:
Porsche 996 3.6L Inc C2 / C4 / C4S
Porsche 986 Boxster 2.7L / 3.2L 2003>>
Porsche 996 GT3 MKI
Porsche 996 GT3 MKII
Porsche 996 Turbo
Porsche 987 Boxster 2.7L / 3.2L
Porsche 987C Cayman 2.7L / 3.4L
Porsche 997 3.6L, 3.8L / 997 GT3

Does not come with securing bolts.
2 required per coil, please order separately (part number 90006708901).

Common issues reported in practice 

  • One or more cylinders misfire when the engine is hot but behave quite normally when cold (typical of internal coil failure or heat-sensitive cracks). 
  • Cracked coil housings on Boxster/996 cars, owners often replace the entire set for reliability. 
  • After a spark plug change, misfires appear because weakened coils can fail once higher-voltage plugs are installed; this is a frequently reported pattern.

How to diagnose (practical steps)

  • Read codes: P0300 / P0301–P0306 point to misfires; note which cylinder is affected.
  • Swap test: swap the suspected coil with another cylinder’s coil — if the misfire follows the coil, the coil is bad. (Common, quick field test used by owners.)
  • Measure resistance: check primary and secondary coil resistances at ~20°C and compare to the ranges above.
  • Visual inspection: look for cracks, carbon tracking, oil ingress, or damaged boots/connectors.
  • Oscilloscope / HV probe: for deeper diagnosis a scope or HV probe can show spark energy, but most DIY diagnostics use swap + resistance checks. 



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
90660210101

The product you are viewing cross references to these numbers
Ignition Coil. Porsche 996 / 986 / 987 Boxster / Cayman 1997-11 - 99760210400, 99760210402, 99660210400, 99760210404, 99760210400, 0986221119, 90660210200, 90660210301, 99660210100, 99660210101, 99660210200, 99660210400, 99760210400, 99760210401, 99760210402, 99760210404, 99760210700, 99760210702, 245752, 2504992, 99760210406, 99760210405, 99760210704 - GN1050412B1, ZS036, ZS178, ZS036, ZS178
4
Ignition Coil. Porsche 996 / 986 / 987 Boxster / Cayman 1997-11
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
Spark plug socket. Porsche 996 2002>> / 986 Boxster / 987 Boxster / 987 Cayman / 997 - 99660210500 - ZLE255, ZLE255
2
Spark plug socket. Porsche 996 2002>> / 986 Boxster / 987 Boxster / 987 Cayman / 997
Special Order item
99660210500
Product Information
Product Information
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

Click 'Zoom in' for large parts diagram.
Diagram ref no 2

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

99660210500
99660210500

The product you are viewing cross references to these numbers
Spark plug socket. Porsche 996 2002>> / 986 Boxster / 987 Boxster / 987 Cayman / 997 - 99660210500, 99660210501 - ZLE255, ZLE255
2
Spark plug socket. Porsche 996 2002>> / 986 Boxster / 987 Boxster / 987 Cayman / 997
99660210500/1
Product Information
Product Information
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

Click 'Zoom in' for large parts diagram.
Diagram ref no 2

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

99660210500
99660210500
99660210501

The product you are viewing cross references to these numbers
Spark Plug. Porsche 991 Carrera / 981 Boxster / Cayman / GT4 2012-16 - 99917015190, 0242245581
2
Spark Plug. Porsche 991 Carrera / 981 Boxster / Cayman / GT4 2012-16
Special Order item
99917015190
Product Information
Product Information
Spark Plug FGR 5NQE.
x6 Required Per Engine.
Price Is For Each.

Fits:
Porsche 991.1 Carrera MKI 2012>>2016
Porsche 981 Boxster 2012>>2016
Porsche 981 Boxster Spyder 2016>>2016
Porsche 981 Cayman 2014>>2016
Porsche 981 Cayman GT4 2016>>2016

Diagram Ref No 2

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

99917015190
99917015190
0242245581

The product you are viewing cross references to these numbers
Spark plug. Porsche 996 3.6L / Boxster 987 / Cayman 987C / 997 - 99917022390, 0242245559, 9991700IK22
1
Spark plug. Porsche 996 3.6L / Boxster 987 / Cayman 987C / 997
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
Spark plug. Porsche 996 3.6L / Boxster 987 / Cayman 987C / 997 - 99917022390, 0242245559
3
Spark plug. Porsche 996 3.6L / Boxster 987 / Cayman 987C / 997
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
Spark plug. Porsche 996 3.6L / Boxster 987 / Cayman 987C / 997 - 99917022390, 0242245559, 9991700IK22, FGR 5KQEO - 1002-4
2
Spark plug. Porsche 996 3.6L / Boxster 987 / Cayman 987C / 997
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
Spark plug. Porsche Boxster 987.2 Boxster / 981 Boxster / 987C.2 Cayman / 981C Cayman / 997.2 / 991.1 / 957 Cayenne / 958 Cayenne / 970 Panamera - 99917013090, 99917012290, 99917015190
2
Spark plug. Porsche Boxster 987.2 Boxster / 981 Boxster / 987C.2 Cayman / 981C Cayman / 997.2 / 991.1 / 957 Cayenne / 958 Cayenne / 970 Panamera
99917013090/2
Product Information
Product Information
Spark plug, iridium
Iridium OE Match Spark Plug is a high quality  iridium ignition component designed to closely replicate the original Porsche factory spark plug in fit, heat range, and ignition performance
Sold individually, 6 or 8 required per engine.

Fits:
Porsche 987.2 Boxster 2009 - 2012 (6 Required)
Porsche 987C.2 Cayman 2009 - 2012 (6 Required)
Porsche 987C Cayman R (6 Required)
Porsche 997.2 Carrera 2009 - 2012 (6 Required)

Porsche 957 Cayenne S / GTS 4.8L 2007 - 2010 [Chassis number: M905541>> and MG904965>>] (8 Required)
Porsche 958 Cayenne S 4.8L 2011 - 2018 (8 Required)

Porsche 970 Panamera 3.6L V6 2WD 2010 - 2016 (6 Required)
Porsche 970 Panamera 4 3.6L V6 4WD   2010 - 2016  (6 Required)
Porsche 970 Panamera S 4.8L V8   2010 - 2016  (8 Required)
Porsche 970 Panamera 4S 4.8L V8   2010 - 2016  (8 Required)

Porsche 991.1 Carrera C2 3.4L  2012 - 2016
Porsche 991.1 Carrera C2S / GTS 3.8L  2012 - 2016
Porsche 991.1 Carrera C4 3.4L  2012- 2016
Porsche 991.1 Carrera C4S / GTS 3.8L 2012 - 2016  

Porsche 981 Boxster 2.7L 2012 - 2016
Porsche 981 Boxster S / GTS 3.4L 2012 - 2016
Porsche 981 Boxster Spyder 3.8L 2016 

Porsche 981C Cayman 2.7L 2013 - 2016
Porsche 981C Cayman S / GTS 3.4L 2013 - 2016
Porsche 981C Cayman GT4 3.8L 2016 

The spark plug generates a precisely timed electrical spark to ignite the air-fuel mixture inside the combustion chamber. The platinum-iridium construction ensures stable ignition, efficient combustion, and long-term performance consistency.

Function:
•  Produces a reliable ignition spark for efficient combustion
•  Platinum-iridium electrodes improve durability and spark consistency
•  Supports smooth idle and responsive throttle behaviour
•  Helps maintain fuel efficiency and controlled emissions

Spark plugs in air-cooled engines are exposed to high operating temperatures and sustained combustion stress. Worn or incorrect plugs can cause misfires, rough running, reduced performance, and poor fuel efficiency. Replacing worn plugs with an OE Match platinum-iridium spark plug restores stable ignition, balanced combustion, and helps preserve engine longevity and performance.

When to replace:
•  Engine misfires or uneven idle
•  Hesitation or reduced throttle response
•  Increased fuel consumption
•  At manufacturer-recommended service intervals
•  During routine engine servicing or tune-ups

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

99917013090
99917013090
99917012290
99917015190

The product you are viewing cross references to these numbers
Spark plug. Porsche Boxster 987.2 Boxster / 987C.2 Cayman / 997.2 Carrera / 957 Cayenne S & GTS / 958 Cayenne S / 970 Panamera - 99917013090, 99917012290, 99917015190 - FGR 5NQE
1
Spark plug. Porsche Boxster 987.2 Boxster / 987C.2 Cayman / 997.2 Carrera / 957 Cayenne S & GTS / 958 Cayenne S / 970 Panamera
Special Order item
99917013090
Product Information
Product Information
Spark plug, FGR 5 NQE 04
This Porsche Genuine OE Spark Plug is a factory-designed ignition part for petrol-powered Porsche models including mid-engined Boxster and Cayman platforms, 997-generation 911, Cayenne S V8, and Panamera V6/V8. It delivers consistent combustion performance, supports smooth starting and operation, and preserves the exact ignition characteristics intended by Porsche engineers.
Sold individually, 6 or 8 required per engine.

Fits:
Porsche 987.2 Boxster 2009 - 2012  (6 Required)

Porsche 987C.2 Cayman MKII 2009 - 2012 (6 Required)
Porsche 987C Cayman R (6 Required)

Porsche 997.2 Carrera 2009 - 2012 (6 Required)

Porsche 957 Cayenne S / GTS 4.8L 2007 - 2010 [Chassis number: M905541>> and MG904965>>]  (8 Required)
Porsche 958 Cayenne S 4.8L 2011 - 2018  (8 Required)

Porsche 970 Panamera 3.6L V6 2WD 2010 - 2016  (6 Required)
Porsche 970 Panamera 4 3.6L V6 4WD 2010 - 2016  (6 Required)
Porsche 970 Panamera S 4.8L V8  2010 - 2016  (8 Required)
Porsche 970 Panamera 4S 4.8L V8  2010 - 2016  (8 Required)
 
Spark plugs are essential for creating the electrical spark that ignites the air-fuel mixture inside the engine’s combustion chamber. The correct OE spark plug delivers the right spark intensity and timing, which helps the engine start reliably, run smoothly, and produce optimal power.

Spark plugs wear over time due to electrode erosion and combustion deposits. Worn plugs can lead to misfires, rough idle, sluggish throttle response, and reduced fuel economy. Replacing them with genuine OE Porsche spark plugs ensures the correct gap, heat range, and ignition quality matched to your engine - helping maintain smooth performance and driving enjoyment.

When to replace spark plugs:
•  At manufacturer-recommended service intervals
•  During routine engine tune-ups
•  If experiencing misfires, hesitation, or rough idle
•  When cold starting becomes harder
•  If fuel economy drops
•  During engine diagnostics or repair work

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

99917013090
99917013090
99917012290
99917015190

The product you are viewing cross references to these numbers
Spark plug. Porsche Boxster 987.2 Boxster / 987C.2 Cayman / 997.2 Carrera / 957 Cayenne S & GTS / 958 Cayenne S / 970 Panamera - 99917013090, 99917012290, 99917015190
1
Spark plug. Porsche Boxster 987.2 Boxster / 987C.2 Cayman / 997.2 Carrera / 957 Cayenne S & GTS / 958 Cayenne S / 970 Panamera
99917013090/1
Product Information
Product Information
Spark plug, FGR 5 NQE 04
The Bosch spark plug with Porsche reference 99917013090 is an OEM-quality ignition component engineered for a range of Porsche six-cylinder and select V8 engines. It delivers consistent combustion performance, supports smooth starting and operation, and preserves the exact ignition characteristics intended by Porsche engineers.
Sold individually, 6 or 8 required per engine.

Fits:
Porsche 987.2 Boxster 2009 - 2012  (6 Required)

Porsche 987C.2 Cayman 2009 - 2012 (6 Required)
Porsche 987C Cayman R (6 Required)

Porsche 997.2 Carrera 2009 - 2012 (6 Required)

Porsche 957 Cayenne S / GTS 4.8L 2007 - 2010 [Chassis number: M905541>> and MG904965>>]  (8 Required)
Porsche 958 Cayenne S 4.8L 2011 - 2018  (8 Required)

Porsche 970 Panamera 3.6L V6 2WD 2010 - 2013  (6 Required)
Porsche 970 Panamera 4 3.6L V6 4WD 2010 - 2013  (6 Required)
Porsche 970 Panamera S 4.8L V8  2010 - 2013  (8 Required)
Porsche 970 Panamera 4S 4.8L V8  2010 - 2013  (8 Required)

Designed to meet exact Porsche specifications, this spark plug delivers consistent ignition, efficient combustion, and dependable performance across diverse driving conditions.

Spark plugs play a crucial role in engine operation by generating the electrical spark that ignites the air-fuel mixture in the combustion chamber. Properly specified spark plugs help maintain smooth idling, strong throttle response, reliable cold starts, and optimal fuel economy. Worn or incorrect spark plugs can cause misfires, rough running, reduced power, and increased emissions.

Manufactured by Bosch, a trusted original equipment supplier to Porsche, this spark plug features durable construction, precise heat range, and high-quality electrode design for long service life and stable ignition performance. Supplied as a single unit, multiple spark plugs should be ordered for full engine service.

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

99917013090
99917013090
99917012290
99917015190

The product you are viewing cross references to these numbers
DISPLAYING 17 to 27 (of 27 products)
1 2
Also found on these pages
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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