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Porsche // 924 (1977-1988) // 924S 2.5L 1988
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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 911 1984-1986 3.2L
- Porsche 911 1987-1989 3.2L G50
- Porsche 924S 2.5L 1986-87
- Porsche 924S 2.5L 1988
- Porsche 944 2.5L 8V 1982-87
- Porsche 944 2.7L 8V 1988-89
- Porsche 944S 2.5L 16V 1987-88
- Porsche 944S2 3.0L 16V 1989-91
- Porsche 944 Turbo 2.5L 8V 1985-88
- Porsche 944 Turbo 2.5L 8V 1989-91
- Porsche 944 Turbo S 2.5L 8V 1988
- Porsche 928S 4.7L 1981-83
- Porsche 928S2 4.7L 1984-86
- Porsche 928S4 5.0L 1987-92
- Porsche 928GT 5.0L 1989-91
- Porsche 912E 4CYL 1976
Information
Spark plug WR 7 DC+
Genuine OE Porsche spark plug, factory-engineered to deliver precise ignition performance, efficient combustion, and reliable operation. Direct replacement part maintaining original Porsche ignition standards.
Sold individually, 4, 6 or 8 required depending on engine type
Fits:
Porsche 911 3.2L 1984 - 89 *with catalyst
Porsche 924S 2.5L 1986 - 1988
Porsche 928S / 928S2 / 928S4 / 928GT 1983 - 1991
Porsche 944 / 944S / 944S2 / 944T 1985 - 1991
Porsche 912E 1976
Porsche 968 1992 - 1995 Coupe
Porsche engines rely on accurate ignition timing and stable combustion, especially under high compression and performance conditions. Using a genuine Porsche spark plug helps maintain smooth idle, crisp throttle response, optimal power delivery, and controlled emissions. It also ensures compatibility with Porsche engine management systems and ignition coils.
Designed as a direct replacement, this spark plug installs without modification and is suitable for routine servicing, diagnostics, or replacement of individual worn plugs while maintaining full OE integrity.
The spark plug generates a precisely timed electrical spark inside the combustion chamber to ignite the air-fuel mixture. This controlled ignition initiates combustion, allowing the engine to produce power efficiently and smoothly.
Function:
• Produces a consistent ignition spark for efficient combustion
• Supports smooth idle, responsive acceleration, and stable power output
• Helps maintain fuel efficiency and emission control
• Engineered to Porsche’s exact OE heat range and performance standards
• Designed for durability under high thermal and mechanical loads
Spark plugs naturally wear due to heat, combustion pressure, and electrical stress. A worn or incorrect spark plug can cause misfires, rough running, reduced power, increased fuel consumption, and higher emissions. Replacing worn plugs with a genuine Porsche OE spark plug ensures the ignition system continues to perform exactly as engineered, protecting engine performance, efficiency, and longevity.
When to replace:
• Engine misfires or uneven idle
• Reduced throttle response or loss of power
• Increased fuel consumption
• At Porsche-recommended service intervals
• During routine engine servicing or ignition maintenance
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99917015690
The product you are viewing cross references to these numbers
Genuine OE Porsche spark plug, factory-engineered to deliver precise ignition performance, efficient combustion, and reliable operation. Direct replacement part maintaining original Porsche ignition standards.
Sold individually, 4, 6 or 8 required depending on engine type
Fits:
Porsche 911 3.2L 1984 - 89 *with catalyst
Porsche 924S 2.5L 1986 - 1988
Porsche 928S / 928S2 / 928S4 / 928GT 1983 - 1991
Porsche 944 / 944S / 944S2 / 944T 1985 - 1991
Porsche 912E 1976
Porsche 968 1992 - 1995 Coupe
Porsche engines rely on accurate ignition timing and stable combustion, especially under high compression and performance conditions. Using a genuine Porsche spark plug helps maintain smooth idle, crisp throttle response, optimal power delivery, and controlled emissions. It also ensures compatibility with Porsche engine management systems and ignition coils.
Designed as a direct replacement, this spark plug installs without modification and is suitable for routine servicing, diagnostics, or replacement of individual worn plugs while maintaining full OE integrity.
The spark plug generates a precisely timed electrical spark inside the combustion chamber to ignite the air-fuel mixture. This controlled ignition initiates combustion, allowing the engine to produce power efficiently and smoothly.
Function:
• Produces a consistent ignition spark for efficient combustion
• Supports smooth idle, responsive acceleration, and stable power output
• Helps maintain fuel efficiency and emission control
• Engineered to Porsche’s exact OE heat range and performance standards
• Designed for durability under high thermal and mechanical loads
Spark plugs naturally wear due to heat, combustion pressure, and electrical stress. A worn or incorrect spark plug can cause misfires, rough running, reduced power, increased fuel consumption, and higher emissions. Replacing worn plugs with a genuine Porsche OE spark plug ensures the ignition system continues to perform exactly as engineered, protecting engine performance, efficiency, and longevity.
When to replace:
• Engine misfires or uneven idle
• Reduced throttle response or loss of power
• Increased fuel consumption
• At Porsche-recommended service intervals
• During routine engine servicing or ignition maintenance
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99917015690
99917015690
92809460203
99917014190
99917015890
99917018990
9991701899A
The product you are viewing cross references to these numbers
Price: £20.71
In stock
Vehicle Group
- Porsche 911 1984-1986 3.2L
- Porsche 911 1987-1989 3.2L G50
- Porsche 924S 2.5L 1986-87
- Porsche 924S 2.5L 1988
- Porsche 944 2.5L 8V 1982-87
- Porsche 944 2.7L 8V 1988-89
- Porsche 944S 2.5L 16V 1987-88
- Porsche 944S2 3.0L 16V 1989-91
- Porsche 944 Turbo 2.5L 8V 1985-88
- Porsche 944 Turbo 2.5L 8V 1989-91
- Porsche 944 Turbo S 2.5L 8V 1988
- Porsche 968 3.0L 1992-94
- Porsche 968 Sport 3.0L 1994-95
- Porsche 968 CS 3.0L 1993-95
- Porsche 928S 4.7L 1981-83
- Porsche 928S2 4.7L 1984-86
- Porsche 928S4 5.0L 1987-92
- Porsche 928GT 5.0L 1989-91
- Porsche 928GTS 5.4L 1992-95
- Porsche 912E 4CYL 1976
Information
Spark plug WR 7 DC+
Price is for each.
Fits:
Porsche 911 3.2L WITH CATALYST 1984-89
Porsche 924S 2.5L 1986-88
Porsche 928S / 928S2 / 928S4 / 928GT 1983-1991
Porsche 928 GTS 1992-95 (M28.49/50)
Porsche 944 / 944S / 944S2 / 944T 1985-91
Porsche 968 1992-95 (M44.43/44)
Porsche 912E
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99917015690
The product you are viewing cross references to these numbers
Price is for each.
Fits:
Porsche 911 3.2L WITH CATALYST 1984-89
Porsche 924S 2.5L 1986-88
Porsche 928S / 928S2 / 928S4 / 928GT 1983-1991
Porsche 928 GTS 1992-95 (M28.49/50)
Porsche 944 / 944S / 944S2 / 944T 1985-91
Porsche 968 1992-95 (M44.43/44)
Porsche 912E
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99917015690
99917015690
0242235663
92809460203
99917014190
99917015890
99917018990
9991701899A
The product you are viewing cross references to these numbers
Price: £2.50
In stock
Vehicle Group
- Porsche 911 1984-1986 3.2L
- Porsche 911 1987-1989 3.2L G50
- Porsche 924S 2.5L 1986-87
- Porsche 924S 2.5L 1988
- Porsche 944 2.5L 8V 1982-87
- Porsche 944 2.7L 8V 1988-89
- Porsche 944S 2.5L 16V 1987-88
- Porsche 944S2 3.0L 16V 1989-91
- Porsche 944 Turbo 2.5L 8V 1985-88
- Porsche 944 Turbo 2.5L 8V 1989-91
- Porsche 944 Turbo S 2.5L 8V 1988
- Porsche 928S 4.7L 1981-83
- Porsche 928S2 4.7L 1984-86
- Porsche 928S4 5.0L 1987-92
- Porsche 928GT 5.0L 1989-91
- Porsche 928GTS 5.4L 1992-95
- Porsche 912E 4CYL 1976
Information
Spark plug WR 7 DC+
The spark plug produces a precisely timed electrical spark to ignite the air-fuel mixture within the combustion chamber. This ignition process enables smooth engine operation, efficient fuel burn, and reliable power output.
Sold individually, 4, 6 or 8 required depending on engine type
Fits:
Porsche 911 3.2L 1984 - 89 *with catalyst
Porsche 924S 2.5L 1986 - 1988
Porsche 928S / 928S2 / 928S4 / 928GT 1983 - 1991
Porsche 944 / 944S / 944S2 / 944T 1985 - 1991
Porsche 912E
Porsche 968 1992 - 1995 Coupe
Spark plugs play a critical role in engine efficiency, smoothness, and power delivery. Over time, wear from heat and combustion stress can reduce spark quality, leading to misfires, hesitation, and increased fuel consumption. Replacing worn plugs with an OE Match unit restores proper ignition timing and helps maintain optimal engine performance.
Designed for direct installation with no modification required, this spark plug is suitable for routine servicing, diagnostics, or replacement of individual worn plugs.
Function:
• Generates a consistent ignition spark for combustion
• Supports smooth idle and responsive acceleration
• Helps maintain proper fuel efficiency and emissions control
• Direct-fit replacement for easy installation
A worn or incorrect spark plug can cause rough running, misfires, loss of power, and reduced fuel economy. Using a correct OE Match spark plug ensures ignition performance remains consistent with factory expectations, helping preserve engine reliability and long-term efficiency.
When to replace:
• Engine misfires or uneven idle
• Hesitation or reduced throttle response
• Increased fuel consumption
• At manufacturer-recommended service intervals
• During tune-ups or ignition system maintenance
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99917015690
The product you are viewing cross references to these numbers
The spark plug produces a precisely timed electrical spark to ignite the air-fuel mixture within the combustion chamber. This ignition process enables smooth engine operation, efficient fuel burn, and reliable power output.
Sold individually, 4, 6 or 8 required depending on engine type
Fits:
Porsche 911 3.2L 1984 - 89 *with catalyst
Porsche 924S 2.5L 1986 - 1988
Porsche 928S / 928S2 / 928S4 / 928GT 1983 - 1991
Porsche 944 / 944S / 944S2 / 944T 1985 - 1991
Porsche 912E
Porsche 968 1992 - 1995 Coupe
Spark plugs play a critical role in engine efficiency, smoothness, and power delivery. Over time, wear from heat and combustion stress can reduce spark quality, leading to misfires, hesitation, and increased fuel consumption. Replacing worn plugs with an OE Match unit restores proper ignition timing and helps maintain optimal engine performance.
Designed for direct installation with no modification required, this spark plug is suitable for routine servicing, diagnostics, or replacement of individual worn plugs.
Function:
• Generates a consistent ignition spark for combustion
• Supports smooth idle and responsive acceleration
• Helps maintain proper fuel efficiency and emissions control
• Direct-fit replacement for easy installation
A worn or incorrect spark plug can cause rough running, misfires, loss of power, and reduced fuel economy. Using a correct OE Match spark plug ensures ignition performance remains consistent with factory expectations, helping preserve engine reliability and long-term efficiency.
When to replace:
• Engine misfires or uneven idle
• Hesitation or reduced throttle response
• Increased fuel consumption
• At manufacturer-recommended service intervals
• During tune-ups or ignition system maintenance
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99917015690
99917015690
92809460203
99917014190
99917015890
99917018990
9991701899A
The product you are viewing cross references to these numbers
Price: £2.00
In stock
Vehicle Group
- Porsche 924S 2.5L 1986-87
- Porsche 924S 2.5L 1988
- Porsche 944 2.5L 8V 1982-87
- Porsche 944 2.7L 8V 1988-89
- Porsche 944S 2.5L 16V 1987-88
- Porsche 944S2 3.0L 16V 1989-91
- Porsche 944 Turbo 2.5L 8V 1985-88
- Porsche 944 Turbo 2.5L 8V 1989-91
- Porsche 944 Turbo S 2.5L 8V 1988
- Porsche 912E 4CYL 1976
Information
Spark plug WR 7 DC+
This OE Match spark plug set includes four identical spark plugs, each manufactured to OE-equivalent standards for materials, electrode configuration, and thermal performance. Replacing spark plugs as a full set is essential for maintaining even ignition timing and smooth engine operation. Worn or mismatched plugs can cause misfires, rough running, reduced throttle response, and increased fuel consumption.
PACK OF 4
Fits:
Porsche 924S 2.5L 1986 - 1988
Porsche 944 / 944S / 944S2 / 944T 1985 - 1991
Porsche 912E
Porsche 968 1992 - 1995 Coupe
The spark plugs generate precisely timed electrical sparks to ignite the air-fuel mixture within each combustion chamber. As a complete set, they ensure uniform combustion, supporting smooth engine running, efficient fuel burn, and consistent power delivery.
Each spark plug installs without modification, making the set ideal for routine servicing, tune-ups, or ignition system maintenance.
Function:
• Provides reliable ignition across all four cylinders
• Supports smooth idle and responsive acceleration
• Helps maintain fuel efficiency and stable combustion
• Supplied as a complete set for correct engine servicing
Spark plugs wear over time due to heat and combustion stress. Replacing all four plugs together ensures consistent ignition timing, prevents misfires, restores smooth engine operation, and helps protect components such as ignition coils and catalytic converters. Using an OE Match set delivers reliable performance while maintaining correct fit and function.
When to replace:
• Engine misfires or uneven idle
• Reduced throttle response or loss of power
• Increased fuel consumption
• At manufacturer-recommended service intervals
• During routine tune-ups or ignition system servicing
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99917015690
The product you are viewing cross references to these numbers
This OE Match spark plug set includes four identical spark plugs, each manufactured to OE-equivalent standards for materials, electrode configuration, and thermal performance. Replacing spark plugs as a full set is essential for maintaining even ignition timing and smooth engine operation. Worn or mismatched plugs can cause misfires, rough running, reduced throttle response, and increased fuel consumption.
PACK OF 4
Fits:
Porsche 924S 2.5L 1986 - 1988
Porsche 944 / 944S / 944S2 / 944T 1985 - 1991
Porsche 912E
Porsche 968 1992 - 1995 Coupe
The spark plugs generate precisely timed electrical sparks to ignite the air-fuel mixture within each combustion chamber. As a complete set, they ensure uniform combustion, supporting smooth engine running, efficient fuel burn, and consistent power delivery.
Each spark plug installs without modification, making the set ideal for routine servicing, tune-ups, or ignition system maintenance.
Function:
• Provides reliable ignition across all four cylinders
• Supports smooth idle and responsive acceleration
• Helps maintain fuel efficiency and stable combustion
• Supplied as a complete set for correct engine servicing
Spark plugs wear over time due to heat and combustion stress. Replacing all four plugs together ensures consistent ignition timing, prevents misfires, restores smooth engine operation, and helps protect components such as ignition coils and catalytic converters. Using an OE Match set delivers reliable performance while maintaining correct fit and function.
When to replace:
• Engine misfires or uneven idle
• Reduced throttle response or loss of power
• Increased fuel consumption
• At manufacturer-recommended service intervals
• During routine tune-ups or ignition system servicing
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99917015690
99917015690
92809460203
99917014190
99917015890
99917018990
9991701899A
The product you are viewing cross references to these numbers
About kit
This kit is comprised of the following items:
4 x Spark plug. Porsche 911 / 924S / 928 / 944 / 912E / 968 (99917015690/3)
Unit Price: £2.00
InStock
Price: £8.00
In stock