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Spark Plugs

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DISPLAYING 1 to 16 (of 20 products)
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99760210405/1KIT
Product Information
Product Information
Ignition Coil Packs. PACK OF 6

beru

Fits:
Porsche Boxster 986 2.5L 1997-99
Porsche Boxster 986 2.7L 1999-02
Porsche Boxster S 986 3.2L 1999-02
Porsche 996 C2 3.4L 1997-08/01
Porsche 996 C4 3.4L 1997-08/01

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99760210405
99760210700
99760210702
99660210200
99760210702
99660210101
99660210200
99760210700
0986221116
99760210405
997.602.104.05
997 602 104 05
99760210404
997.602.104.04
997 602 104 04
99760210402
997.602.104.02
997 602 104 02
99760210406
997.602.104.06
997 602 104 06
99760210403
997.602.104.03
997 602 104 03
99760210401
997.602.104.01
997 602 104 01
99760210400
997.602.104.00
997 602 104 00
99660210400
996.602.104.00
996 602 104 00
997.602.107.00
997 602 107 00
996.602.101.01
996 602 101 01
99660210501
996.602.105.01
996 602 105 01
99660210500
996.602.105.00
996 602 105 00
9760210702
90038502501
900.385.025.01
900 385 025 01
99660210100
996.602.101.00
996 602 101 00
99917020791
99610532552

The product you are viewing cross references to these numbers
SERVICEPACK996/8
Product Information
Product Information
Ignition coil packs, PACK OF 6  
This OE Match ignition coil set includes six coil-on-plug ignition coils, designed for Porsche flat-six engines used in models such as the Porsche 911 (996 / early 997), Boxster (986 / early 987) and Cayman variants. Each coil mounts directly onto a spark plug and delivers the high-voltage spark required to ignite the air-fuel mixture inside the engine cylinders.

Fits:
Porsche Boxster 986 2.5L 1997 - 1999
Porsche Boxster 986 2.7L 1999 - 1902
Porsche Boxster S 986 3.2L 1999 - 1902
Porsche 996 C2 3.4L 1997 - 08/2001
Porsche 996 C4 3.4L 1997 - 08/2001

Please note: if you require screws order code 90006708901

The ignition coils generate the high-voltage electrical pulse required to create a spark at the spark plug. This spark ignites the air-fuel mixture inside the combustion chamber, enabling the engine to produce power.

Replacing all six coils at the same time ensures uniform ignition performance and prevents issues caused by mismatched coil age or output.

Function
•  High-Voltage Generation: Converts 12-volt electrical power into ignition spark voltage
•  Cylinder Ignition: Delivers spark directly to each spark plug
•  Engine Performance: Supports smooth combustion and consistent power delivery
•  Balanced Operation: Six matched coils ensure even ignition across all cylinders

Ignition coils operate in a high-temperature environment close to the engine. Over time the plastic housings can crack or internal components may weaken, leading to misfires, rough running or reduced engine performance. Replacing all coils together ensures consistent spark energy across all cylinders and restores smooth engine operation.

When to Replace.  Consider replacing the ignition coils if you notice:
•   Engine misfires or rough idle
•   Loss of power during acceleration
•   Check engine light related to ignition faults
•   Cracked ignition coil housing
•   During spark plug replacement or major engine service

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

SERVICEPACK996
99760210700
99760210702
99660210200
99760210702
99660210101
99660210200
99760210700
0986221116
99760210703
99917020791
90006708901
99610532552
99760210704

The product you are viewing cross references to these numbers
4201Rx6
Product Information
Product Information
Performance Ignition Coil Pack.  6 Required per engine. PACK OF 6.


Fits:
Porsche 911 (996)
Porsche 911 (997)
Porsche Boxster
Porsche Cayman

The Plasma Direct is an ignition coil with a built-in high-power amplifier. Plasma Direct Coils produce 4 times more spark energy than stock coils, and generate an ultra-fast multi-spark-discharge of 10 sparks up to highest RPM.

The spark amperage is increased by 100%, allowing the spark to reach many more molecules, which therefore accelerates the ignition and combustion processes. This is extremely important in forced induction applications, but also improves the performance of normally aspirated engines.
The Plasma Direct will increase horsepower and torque throughout the entire RPM range, as well as reducing fuel consumption. Even engines with legendary smoothness will be further refined with the Plasma Direct upgrade. Plasma Direct coils are OBD II compliant.

- 100% secondary current (Spark Amperage) increase.
- 4 times spark energy increase for the initial spark discharge.
- 8% Fuel Saving
- Easy installation.
- Compatible with all OEM components.
- Compatible with OBD-II (On-Board-Diagnostics).



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4201Rx6
99760210402
99760210400
99660210400
99760210404
0986221119
90660210200
90660210301
99660210100
99660210101
99660210200
99760210401
99760210700
99760210702
99760210406
99760210405
90660210101
99760210703
4201R

The product you are viewing cross references to these numbers
99610532552/1KIT
Product Information
Product Information
Set of 6 replacement spark plug tubes with new o-rings.


Fits:
Porsche 986 Boxster / Boxster S 1997-02
Porsche 996 C2 / C4 3.4L 1998-01



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99610532552
99970734341
99970721540

The product you are viewing cross references to these numbers
99917020791/1x6
Product Information
Product Information
Spark Plugs (PACK OF 6). Porsche 996 3.4L / Boxster 986.

bosch

Spark Plug (Bosch cross reference 14FGR 6KQU)

Fits:
Porsche Boxster 986 2.7L 1999-02
Porsche Boxster S 986 3.2L 1999-02
Porsche Boxster 986 2.7L 2003-04
Porsche Boxster S 986 3.2L 2003-04
Porsche 996 C2 3.4L 1997-08/01
Porsche 996 C4 3.4L 1997-08/01  

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99917020791
99917020791
99917020490
99917020491
99917021890

The product you are viewing cross references to these numbers
Special Order item
90006708901
Product Information
Product Information
porsche

Ignition Coil Pack Screw. M6 X 25

Note: These are for use with the original smaller bodied Porsche ignition coils. If in doubt please seek clarification before purchase/installation.

12pcs Required per car

Fits:
Porsche 996
Porsche 986 Boxster
Porsche 996 GT3 MKI
Porsche 996 GT3 MKII
Porsche 996 Turbo
Porsche 987
Porsche 987C Cayman
Porsche 997 3.6L, 3.8L / 997 GT3

Click 'Zoom in' for large parts diagram.
Diagram ref no 3

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90006708901
90006708901
90006700801

The product you are viewing cross references to these numbers
Special Order item
99760210704
Product Information
Product Information
Ignition Coil.
6 Required per engine. Price is for each.

Fits:
Porsche Boxster 986 2.5L 1997 - 1999
Porsche Boxster 986 2.7L 1999 - 2002
Porsche Boxster S 986 3.2L 1999 - 2002
Porsche 996 C2 3.4L 1997 - 08/2001
Porsche 996 C4 3.4L 1997 - 08/2001

Related reference numbers
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99760210704
99760210700
99760210702
99660210200
99760210703
99760210702
99660210101
99760210700
99760210702
99760210704

The product you are viewing cross references to these numbers
99760210704/3
Product Information
Product Information
Ignition coil pack
This OE Match ignition coil is an engine ignition component designed for several Porsche flat-six engines, including models such as the Porsche 911 (996 / early 997), Boxster (986 / early 987) and related variants. The ignition coil sits directly above the spark plug and converts battery voltage into the high-voltage spark required to ignite the air-fuel mixture inside the combustion chamber.
Sold individually, 6 Required per engine. Price is for each.

Fits:
Porsche Boxster 986 2.5L 1997 - 1999
Porsche Boxster 986 2.7L 1999 - 2002
Porsche Boxster S 986 3.2L 1999 - 2002
Porsche 996 C2 3.4L 1997 - 08/2001
Porsche 996 C4 3.4L 1997 - 08/2001

Please note: if you require screws order code 90006708901

This OE Match ignition coil is designed to match the original Porsche component in shape, electrical characteristics and mounting configuration. It integrates the spark plug connector and coil housing, delivering high-voltage ignition directly to the spark plug for reliable combustion.

This component is commonly replaced during ignition system maintenance, particularly when misfires occur or when performing full ignition service.

The ignition coil converts the vehicle’s low-voltage battery power into high-voltage electrical energy, creating the spark needed to ignite the air-fuel mixture in the engine cylinders.

A properly functioning coil ensures smooth engine operation, consistent power delivery and efficient combustion.

Ignition coils are exposed to high heat and vibration within the engine bay. Over time they can develop cracks in the housing or internal electrical faults, which may cause engine misfires, rough running or loss of power. Replacing worn ignition coils restores proper ignition performance and helps maintain smooth engine operation.

When to Replace.  Consider replacing the ignition coil if you notice:
  Engine misfires or rough idle
  Loss of power during acceleration
  Check engine light related to ignition faults
  Cracked or damaged coil housing
  During spark plug or ignition system service

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

99760210704
99760210700
99760210702
99660210200
99760210703
99760210702
99660210101
99760210700
99760210702
99660210200

The product you are viewing cross references to these numbers
99760210405/1
Product Information
Product Information
Ignition coil. Includes longer mounting bolts.
6 Required per engine. Price is for each.

beru

Fits:
Porsche Boxster 986 2.5L 1997-99
Porsche Boxster 986 2.7L 2003-2004
Porsche Boxster S 986 3.2L 2003-2004

Porsche 996 C2 3.4L 1997-08/01
Porsche 996 C4 3.4L 1997-08/01
Porsche 996 3.6L Inc. C2 / C4 / C4S
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

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99760210405
99660210400
99760210404
0986221119
90660210200
90660210301
99660210100
99660210101
99660210200
99660210400
99760210400
99760210401
99760210402
99760210404
99760210700
99760210702
245752
2504992
99760210405
90660210101
99760210704
99760210703

The product you are viewing cross references to these numbers
99970176141/1
Product Information
Product Information
Spark plug shaft seal. 28 x 2.

elring

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

Click 'Zoom in' for large parts diagram.
Diagram ref no 33

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99970176141
99970176140
99970176141
260.470
99610532552
996.105.325.52
260.470

The product you are viewing cross references to these numbers
Special Order item
99970176141
Product Information
Product Information
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

Click 'Zoom in' for large parts diagram.
Diagram ref no 33

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

99970176141
99970176140
99970176141
260.470
99610532552
996.105.325.52
260.470

The product you are viewing cross references to these numbers
99660210301/1
Product Information
Product Information
Spark plug socket.
6 Required per engine. Price is for each.

beru

Fits:
Porsche 986 Boxster 2.5L 1997-99
Porsche 986 Boxster 2.7L 2000-02
Porsche 986 Boxster S 3.2L 2000-02
Porsche 996 Carrera 3.4L 1998-99

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

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99660210301
99660210301
99660210501
99660210500

The product you are viewing cross references to these numbers
Special Order item
99970721540
Product Information
Product Information
Spark plug tube seal - 27.94 x 5.33

6 Required per engine; sold individually.

Fits:
Porsche 986 Boxster / Boxster S 1997-02
Porsche 996 C2 / C4 1998-01

Click 'Zoom in' for large parts diagram.
Diagram ref no 29

Related reference numbers
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99970721540
99970734340
99970734341
99610532552

The product you are viewing cross references to these numbers
99970721540/1
Product Information
Product Information
Replacement spark plug tube seal - 27.94 x 5.33

x6 required per engine; sold individually.

Fits:
Porsche 986 Boxster / Boxster S 1997-02
Porsche 996 C2 / C4 1998-01

Click 'Zoom in' for large parts diagram.
Diagram ref no 29

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

99970721540
99610532552
99970734340
99970734341

The product you are viewing cross references to these numbers
Special Order item
99970734341
Product Information
Product Information
Replacement spark plug tube seal - 25.07 x 2.62

6 Required per engine; sold individually.

Fits:
Porsche 986 Boxster / Boxster S 1997-02
Porsche 996 C2 / C4 1998-01

Click 'Zoom in' for large parts diagram.
Diagram ref no 28

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

99970734341
99970734340
99970721540

The product you are viewing cross references to these numbers
Special Order item
99610532552
Product Information
Product Information
Replacement spark plug tube. 

Sold individually; x6 required per engine.

Fits:
Porsche 986 Boxster / Boxster S 1997-02
Porsche 996 C2 / C4 3.4L 1998-01

Click 'Zoom in' for large parts diagram.
Diagram ref no 27

*Please note that Genuine Porsche spark plug tubes do not come with replacement o-rings. We recommend replacing the o-rings at the same time. They are available for purchase separately, and you will be prompted to add them to your basket during checkout.

Related reference numbers
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99610532552
99970721540
99970734341

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DISPLAYING 1 to 16 (of 20 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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