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Porsche // 964 (911) (1989-1994) // 964 (911) C4 1989-93
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Spark plug, Double-iridium. Porsche 997 Turbo / 957/958 Cayenne Turbo / 970 Panamera Turbo - 99917022890
99917022890/2
Vehicle Group
- Porsche 997 MKII Turbo 2010-13
- Porsche 997 MKII GT2 RS 2011-13
- Porsche 991.1 Turbo 3.8L (520 Bhp) 2014-16
- Porsche 991.1 Turbo S 3.8L (560 Bhp) 2014-16
- Porsche 991.2 Turbo Coupe 3.8L (540 Bhp) 2016-19
- Porsche 991.2 Turbo S Coupe 3.8L (580 Bhp) 2016-19
- Porsche 991.2 Turbo Cabriolet 3.8L (540 Bhp) 2016-19
- Porsche 991.2 Turbo S Cabriolet 3.8L (580 Bhp) 2016-19
- Porsche 957 Cayenne Turbo / Turbo S 4.8L 2007-10
- Porsche 958 Cayenne Turbo V8 4.8L Petrol (500Hp) 2010-17
- Porsche 958 Cayenne Turbo S V8 4.8L Petrol (550Hp) 2010-17
- Porsche 970.1 Panamera Turbo V8 4.8L 2009-13
- Porsche 970.1 Panamera Turbo S V8 4.8L 2009-13
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
The product you are viewing cross references to these numbers
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
Price: £7.60
In stock
Related products
Vehicle Group
- Porsche 964 (911) C2 1989-93
- Porsche 964 (911) C4 1989-93
- Porsche 964 (911) RS 3.6L 1991-93
- Porsche 993 (911) C2 1994-97
- Porsche 993 (911) C4 1994-97
- Porsche 993 (911) RS 1994-97
- Porsche 993 (911) C2S 1994-97
- Porsche 993 (911) C4S 1994-97
Information
Spark plug, FR5DTC.
This genuine Porsche OE spark plug is the factory-installed ignition component in air-cooled and early liquid-cooled 911 Carrera and RS engines of the 964 and 993 generations. It provides the correct ignition characteristics for smooth, efficient operation, just as Porsche intended – ideal for service replacements, maintaining consistent performance and the authenticity of classic designs.
Sold individually, 12 spark plugs required per engine.
Fits:
Porsche 964 C2 / C4 1989 - 1993
Porsche 964 RS 3.6L 1991 -1993 M64.03
Porsche 993 C2 / C4 1994 - 1997
Porsche 993 C2S / C4S 1994 - 1997
Porsche 993 RS M64.20 1994 - 1997
Spark plugs are a critical part of the ignition system. Each plug creates an electrical spark inside the combustion chamber that ignites the compressed air-fuel mixture, producing the explosion that powers each engine cylinder. Genuine OE spark plugs ensure this ignition process is consistent, clean, and optimised - which supports smooth idle, strong throttle response, and efficient combustion throughout the rev range.
Functions & Technical Role:
• Ignition ignition source: Generates a reliable, timed spark for each cylinder
• Optimal combustion support: Maintains a consistent burn for power, efficiency, and emissions
• OE-matched heat range & gap: Designed to Porsche factory specifications for the 964/993 engine family
• Durable construction: Quality materials resist normal wear and combustion deposits
• High RPM performance: Suitable for classic 911 driving conditions
Spark plugs naturally wear from heat, combustion deposits, and electrode erosion. As they age, misfires, rough idle, and poorer fuel economy can develop. Installing Genuine Porsche OE plugs ensures the correct spark gap, heat range, and ignition performance, preserving engine efficiency, responsiveness, and emission stability.
When to replace spark plugs:
• At Porsche-specified service intervals
• During routine engine tune-ups or maintenance
• If experiencing misfires, hesitation, or rough idle
• When cold starting becomes harder than normal
• If performance or fuel economy drops
• While performing engine diagnostics or restoration work
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99917018390
The product you are viewing cross references to these numbers
This genuine Porsche OE spark plug is the factory-installed ignition component in air-cooled and early liquid-cooled 911 Carrera and RS engines of the 964 and 993 generations. It provides the correct ignition characteristics for smooth, efficient operation, just as Porsche intended – ideal for service replacements, maintaining consistent performance and the authenticity of classic designs.
Sold individually, 12 spark plugs required per engine.
Fits:
Porsche 964 C2 / C4 1989 - 1993
Porsche 964 RS 3.6L 1991 -1993 M64.03
Porsche 993 C2 / C4 1994 - 1997
Porsche 993 C2S / C4S 1994 - 1997
Porsche 993 RS M64.20 1994 - 1997
Spark plugs are a critical part of the ignition system. Each plug creates an electrical spark inside the combustion chamber that ignites the compressed air-fuel mixture, producing the explosion that powers each engine cylinder. Genuine OE spark plugs ensure this ignition process is consistent, clean, and optimised - which supports smooth idle, strong throttle response, and efficient combustion throughout the rev range.
Functions & Technical Role:
• Ignition ignition source: Generates a reliable, timed spark for each cylinder
• Optimal combustion support: Maintains a consistent burn for power, efficiency, and emissions
• OE-matched heat range & gap: Designed to Porsche factory specifications for the 964/993 engine family
• Durable construction: Quality materials resist normal wear and combustion deposits
• High RPM performance: Suitable for classic 911 driving conditions
Spark plugs naturally wear from heat, combustion deposits, and electrode erosion. As they age, misfires, rough idle, and poorer fuel economy can develop. Installing Genuine Porsche OE plugs ensures the correct spark gap, heat range, and ignition performance, preserving engine efficiency, responsiveness, and emission stability.
When to replace spark plugs:
• At Porsche-specified service intervals
• During routine engine tune-ups or maintenance
• If experiencing misfires, hesitation, or rough idle
• When cold starting becomes harder than normal
• If performance or fuel economy drops
• While performing engine diagnostics or restoration work
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99917018390
99917018390
99917018290
0242245539
The product you are viewing cross references to these numbers
Price: £20.71
In stock
Vehicle Group
- Porsche 964 (911) C2 1989-93
- Porsche 964 (911) C4 1989-93
- Porsche 964 (911) RS 3.6L 1991-93
- Porsche 964 (911) RS 3.8L 1991-93
- Porsche 964 (911) TURBO 3.3L 1991-93
- Porsche 964 (911) TURBO 3.6L 1991-93
- Porsche 993 (911) C2 1994-97
- Porsche 993 (911) C4 1994-97
- Porsche 993 (911) RS 1994-97
- Porsche 993 (911) C2S 1994-97
- Porsche 993 (911) C4S 1994-97
- Porsche 993 (911) TURBO 1994-96
- Porsche 993 (911) GT2 1994-97
- Porsche 993 (911) TURBO S 1994-97
- Porsche 996 TURBO 2000-05
- Porsche 996 GT2 2001-05
- Porsche 996 GT3 MKI 1999-02
- Porsche 996 GT3 MKII 2003>>
Information
Spark plug, 14FR 6LDU.
The spark plug delivers the electrical spark that ignites the air-fuel mixture in the combustion chamber. Reliable ignition is crucial for smooth engine operation, efficient fuel consumption, and optimal power delivery.
Sold individually, 6 required per engine.
Fits:
Porsche 964 C2 / C4 1989 - 1993
Porsche 964 RS 3.6L / 3.8L 1991 - 1993
Porsche 964 TURBO 3.3L / 3.6L 1991 - 1993
Porsche 993 C2 / C4 1994 - 1997
Porsche 993 C2S / C4S 1994 - 1997
Porsche 993 RS 1994- 1997
Porsche 993 Turbo / Turbo S 1994 - 1997
Porsche 993 GT2 1994 - 1997
Porsche 996 TURBO 2000 - 2005
Porsche 996 GT2 2001 - 2005
Porsche 996 GT3 MKI 1999 - 2002
Porsche 996 GT3 MKII 2003>>
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99917019590
The product you are viewing cross references to these numbers
The spark plug delivers the electrical spark that ignites the air-fuel mixture in the combustion chamber. Reliable ignition is crucial for smooth engine operation, efficient fuel consumption, and optimal power delivery.
Sold individually, 6 required per engine.
Fits:
Porsche 964 C2 / C4 1989 - 1993
Porsche 964 RS 3.6L / 3.8L 1991 - 1993
Porsche 964 TURBO 3.3L / 3.6L 1991 - 1993
Porsche 993 C2 / C4 1994 - 1997
Porsche 993 C2S / C4S 1994 - 1997
Porsche 993 RS 1994- 1997
Porsche 993 Turbo / Turbo S 1994 - 1997
Porsche 993 GT2 1994 - 1997
Porsche 996 TURBO 2000 - 2005
Porsche 996 GT2 2001 - 2005
Porsche 996 GT3 MKI 1999 - 2002
Porsche 996 GT3 MKII 2003>>
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99917019590
99917019590
0242240566
99917019290
99917018390
The product you are viewing cross references to these numbers
Price: £8.95
In stock
Vehicle Group
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 911 1978-1983 3.0L / SC
- Porsche 911 1984-1986 3.2L
- Porsche 911 1987-1989 3.2L G50
- Porsche 911 1975-1977 3.0L Turbo (930)
- Porsche 911 1978-1989 3.3L Turbo (930)
- Porsche 964 (911) C2 1989-93
- Porsche 964 (911) C4 1989-93
- Porsche 964 (911) RS 3.6L 1991-93
- Porsche 964 (911) RS 3.8L 1991-93
- Porsche 914 (1970-1976)
Information
Spark plug tool key.
To be used with spark plug tools:
477012203A - 911 all & 964 Turbo
99957105402 - 964 (non turbo)
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99957105202
The product you are viewing cross references to these numbers
To be used with spark plug tools:
477012203A - 911 all & 964 Turbo
99957105402 - 964 (non turbo)
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99957105202
99957105202
The product you are viewing cross references to these numbers
Price: £27.82
In stock
Vehicle Group
- Porsche 964 (911) C2 1989-93
- Porsche 964 (911) C4 1989-93
- Porsche 964 (911) RS 3.6L 1991-93
- Porsche 964 (911) RS 3.8L 1991-93
Information
Spark plug tool.
Fits:
Porsche 964 C2 / C4 / RS 1989-94
To be used with 99957105202 spark plug tool key.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99957105402
The product you are viewing cross references to these numbers
Fits:
Porsche 964 C2 / C4 / RS 1989-94
To be used with 99957105202 spark plug tool key.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99957105402
99957105202
The product you are viewing cross references to these numbers
Price: £51.22
In stock