do not press the back button…
Enter your VAT number here and click Verify:
Your details have been verified. VAT number registered to:
,
.
Your order will now be zero rated for VAT purposes. We reserve the right to verify these details after your order request has been made and reinstate VAT if required.
Your VAT details were not recognised or were invalid. Your VAT number must be matched to your Billing Country as specified above. This is currently specified as . You do not need to enter the country code part of your VAT number as this has already been selected in your billing address details above.
The VAT number checking service is currently offline. Please supply your VAT details within the comments or special instructions field below and we will apply a VAT discount after placing your order request.
Original Porsche Part Genuine Porsche part 99917020491
• This part is brand new and unused.
• Please verify that it is 100% suitable for your specific vehicle before purchase to ensure compatibility.
Before purchasing thoroughly check part to confirm compatibility.
- We are unable to provide fitting details for this product at this time. Please contact us for further information.
The Porsche Genuine OE Spark Plug is a factory-specified ignition component built to Porsche’s exact original equipment standards. This OE spark plug (often designated as 14FR7LDU / FR7LDC+) is designed to deliver the precise spark characteristics required by the 2.5-litre flat-six M96.20 engine in early Boxster 986 models.
Sold individually, 6 spark plugs required per engine.
Fits:
Porsche Boxster 986 2.5L 1997 - 1999
Spark plugs are a vital part of the ignition system - they produce the high-voltage electrical spark that ignites the air-fuel mixture inside the engine’s combustion chamber. A properly specified and fitted spark plug ensures efficient combustion, smooth engine running, and reliable start-up.
Functions & Technical Role
• Ignition source: Generates the spark needed for each cylinder to fire properly.
• Efficient combustion: Promotes complete fuel burn for better power delivery and economy.
• Idle stability: Helps reduce misfire, rough idle, and hesitation.
• Correct OE heat range & gap: Engineered to Porsche’s original specification for the Boxster 986 2.5L engine.
• Durable construction: Long-lasting performance suited to normal service intervals.
Spark plugs naturally wear down due to heat cycling, electrode erosion, and combustion deposits, which can lead to misfires, rough idle, reduced power, and poorer fuel economy. Replacing them with Genuine Porsche OE spark plugs restores correct gap, heat range, and spark characteristics - helping preserve performance, efficiency, and engine responsiveness.
When to replace spark plugs:
• At manufacturer-recommended service intervals (typically at major services)
• During routine engine tune-ups
• If experiencing misfires, rough idle, or loss of power
• When starting becomes inconsistent
• If fuel economy decreases significantly
• During engine diagnostics or rebuild work
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 2.5L 1997-99
Shop Securely
12 Month Warranty
Worldwide Delivery
Fits:
Porsche Boxster 986 2.7L 1999-02 (6 Required per engine.)
Porsche Boxster S 986 3.2L 1999-02 (6 Required per engine.)
Porsche Boxster 986 2.7L 2003-04 (6 Required per engine.)
Porsche Boxster S 986 3.2L 2003-04 (6 Required per engine.)
Porsche 996 C2 3.4L 1997-08/01 (6 Required per engine.)
Porsche 996 C4 3.4L 1997-08/01 (6 Required per engine.)
Porsche 955 Cayenne V8 S M48.00 2003-06 (8 Required per engine.)
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99917020791
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 996 C2 3.4L 1997-08/01
- Porsche 996 C4 3.4L 1997-08/01
Shop Securely
12 Month Warranty
Worldwide Delivery
6 Required per engine. Price is for each.
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
The product you are viewing cross references to these numbers
- 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
- Porsche Cayman 2.7L 987C 2006-08
- Porsche Cayman S 3.4L 987C 2005-08
Shop Securely
12 Month Warranty
Worldwide Delivery
By harnessing the power of Iridium, DENSO is suddenly able to shrink the surface area of the center electrode - the critical component of a spark plug. Unlike a typical platinum plug that has a 1.1mm diameter center electrode, DENSO Iridium Power plugs have the world's smallest center electrode measuring 0.4mm in diameter. This means that the voltage requirements are decreased while firing performance is greatly improved.
Fits:
Porsche Cayenne 955 4.5L S 09/2002>> (kW 250; Engine M48.00)
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
9991700IK16
The product you are viewing cross references to these numbers
- Porsche 955 Cayenne S 4.5L V8 2003-06
Shop Securely
12 Month Warranty
Worldwide Delivery
By harnessing the power of Iridium, DENSO is suddenly able to shrink the surface area of the center electrode - the critical component of a spark plug. Unlike a typical platinum plug that has a 1.1mm diameter center electrode, DENSO Iridium Power plugs have the world's smallest center electrode measuring 0.4mm in diameter. This means that the voltage requirements are decreased while firing performance is greatly improved.
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)
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
9991700IK20
The product you are viewing cross references to these numbers
- 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
- Porsche 955 Cayenne S 4.5L V8 2003-06
Shop Securely
12 Month Warranty
Worldwide Delivery
Price is for each.
Fits:
Porsche Boxster 986 2.7L 1999-02
(6 Required per engine.)
Porsche Boxster S 986 3.2L 1999-02
(6 Required per engine.)
Porsche Boxster 986 2.7L 2003-04
(6 Required per engine.)
Porsche Boxster S 986 3.2L 2003-04
(6 Required per engine.)
Porsche 996 C2 3.4L 1997-08/01
(6 Required per engine.)
Porsche 996 C4 3.4L 1997-08/01 (6 Required per engine.)
Porsche 955 Cayenne V8 S M48.00 2003-06 (8 Required per engine.)
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99917020791
The product you are viewing cross references to these numbers
- Porsche Boxster 986 2.5L 1997-99
- 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
- Porsche 955 Cayenne S 4.5L V8 2003-06
Shop Securely
12 Month Warranty
Worldwide Delivery
8 Required per engine. Price is for each.
Fits:
Porsche Cayenne V8 Turbo M48.50
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99917022190
The product you are viewing cross references to these numbers
- Porsche 955 Cayenne Turbo 4.5L 2003-06
- Porsche 955 Cayenne Turbo S 4.5L 2006>>
Shop Securely
12 Month Warranty
Worldwide Delivery
Fits:
Porsche 986 Boxster 2.5L 1997-99
Kit Contents:
1x OE Match Oil Filter – Part No. 99610722560/4
1x Mahle Fuel Filter – Part No. 99611025301/1
1x OE Match Air Filter Element – Part No. 99611013104/3
1x OE Match Pollen Filter Element – Part No. 99757121902/3
1x OE Match Oil Drain Plug Crush Washer – Part No. 90012310630/2
6x Bosch Spark Plugs – Part No. 99917020190/2
Tailor Your Kit to Fit Your Needs:
Not ready to replace parts like spark plugs or the fuel filter? No problem. Before checkout, you can remove individual components to customise the kit to your specific needs.
Want to add more? When you add this kit to your basket, you'll also have the option to include additional parts such as engine oil, ignition coils and more - so you get exactly what your vehicle requires.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
SERVICEKIT.986.1.0
The product you are viewing cross references to these numbers
- Porsche Boxster 986 2.5L 1997-99
Fits:
Porsche 986 Boxster 2.7L 2000-04
Porsche 986 Boxster S 3.2L 2000-04
Kit Contents:
1x OE Match Oil Filter – Part No. 99610722560/4
1x OE Match Air Filter Element – Part No. 99611013104/3
1x OE Match Pollen Filter Element – Part No. 99757121902/3
1x OE Match Oil Drain Plug Crush Washer – Part No. 90012310630/2
6x Bosch Spark Plugs – Part No. 99917020791/1
NOTE:
This kit does not include an in-line fuel filter, as these were only fitted to 2000 and 2001 model year vehicles. If you own a 2000 or 2001 Porsche 986 Boxster, you’ll have the option to add a compatible fuel filter when selecting this kit.
Tailor Your Kit to Fit Your Needs:
Not ready to replace parts like spark plugs or the fuel filter? No problem. Before checkout, you can remove individual components to customise the kit to your specific needs.
Want to add more? When you add this kit to your basket, you'll also have the option to include additional parts such as engine oil, ignition coils and more - so you get exactly what your vehicle requires.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
SERVICEKIT.986S.1.0
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
Monday-Friday: 8.30am - 5.30pm (GMT)
Saturday: Closed
Sunday: Closed