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Hi-Performance IRIDIUM Spark Plugs for Porsche 996 / 986 Boxster / 955 Cayenne ❭ 99917020190
- Porsche Boxster 986 2.5L 1997-99
- Porsche 996 C2 3.4L 1997-08/01
- Porsche 996 C4 3.4L 1997-08/01
- Porsche 955 Cayenne S 4.5L V8 2003-06
This OE Match iridium spark plug features an iridium-tipped electrode, offering a finer and more consistent spark compared to standard spark plugs. The iridium construction improves ignition efficiency and provides increased resistance to wear, making it well suited to the operating demands of Porsche flat-six engines.
Sold individually, 6 required per engine
Fits:
Porsche 996 Carrera / 4 3.4L 08/1997 - 07/1999 (Engine M96.01)
Porsche Boxster 986 2.5L i 24V 08/1996 - 07/1999 (Engine M96.20)
Porsche Boxster 986 2.7L i 24V 08/1999 - 07/2002 (Engine M96.22)
Porsche Boxster S 986 3.2L i 24V 08/1999 - 07/2002 (Engine M96.21)
Porsche 955 Cayenne S 4.5L 05/2002 - 05/2006 (Engine M48.00)
Manufactured to OE-equivalent standards, this spark plug delivers correct thread dimensions, electrode geometry, and thermal characteristics required for stable combustion. It supports smooth idle, crisp throttle response, efficient fuel burn, and consistent power delivery throughout the rev range.
Designed as a direct replacement, this spark plug installs without modification and is ideal for routine servicing, tune-ups, or replacement of individual worn plugs while maintaining OE-equivalent ignition performance.
The spark plug generates a precisely timed electrical spark inside the combustion chamber to ignite the air-fuel mixture. This ignition process enables efficient combustion, smooth engine operation, and reliable power output.
Function:
• Produces a reliable ignition spark for efficient combustion
• Iridium electrode improves spark stability and durability
• Supports smooth idle and responsive acceleration
• Helps maintain fuel efficiency and controlled emissions
Spark plugs wear due to heat, combustion pressure, and electrical load. Worn plugs can cause misfires, rough idle, reduced performance, and increased fuel consumption. Replacing worn plugs with an OE Match iridium spark plug restores reliable ignition, balanced combustion, and smooth engine performance.
When to replace:
• Engine misfires or uneven idle
• Hesitation or reduced throttle response
• Increased fuel consumption
• At manufacturer-recommended service intervals
• During routine ignition system servicing
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99917020190
The product you are viewing cross references to these numbers
- 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 Boxster 987 2.7L 2005-08/08
- Porsche Boxster 987 S 3.2/3.4L 2005-08/08
- Porsche 996 C2 3.6L 09/01-2005
- Porsche 996 C4 3.6L 09/01-2005
- Porsche 996 C4S 3.6L 09/01-2005
- Porsche 997 MK1 Carrera 2 3.6L 2005-08
- Porsche 997 MK1 Carrera 2S 3.8L 2005-08
- Porsche 997 MK1 Carrera 4 3.6L 2005-08
- Porsche 997 MK1 Carrera 4S 3.8L 2005-08
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
The product you are viewing cross references to these numbers
- 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 Boxster 987 2.7L 2005-08/08
- Porsche Boxster 987 S 3.2/3.4L 2005-08/08
- Porsche 996 C2 3.6L 09/01-2005
- Porsche 996 C4 3.6L 09/01-2005
- Porsche 996 C4S 3.6L 09/01-2005
- Porsche 997 MK1 Carrera 2 3.6L 2005-08
- Porsche 997 MK1 Carrera 2S 3.8L 2005-08
- Porsche 997 MK1 Carrera 4 3.6L 2005-08
- Porsche 997 MK1 Carrera 4S 3.8L 2005-08
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
The product you are viewing cross references to these numbers
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