Please wait… 
Please wait while we process your order,
do not press the back button…
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.
Category Filter
Spark plug. Porsche 911 3.2L 1984-89 - 99917015790
99917015790/2
Vehicle Group
- Porsche 911 1984-1986 3.2L
- Porsche 911 1987-1989 3.2L G50
Information
Spark plug WR4CC.
The spark plug produces a precisely timed electrical spark inside the combustion chamber to ignite the air-fuel mixture. This process enables efficient combustion, smooth power delivery, and reliable engine performance.
Sold individually, 6 Required per engine.
Fits:
Porsche 911 3.2L Carrera 1984 - 1989
Non Catalyst.
Spark plugs are critical to engine efficiency, power delivery, and smooth running. Over time, heat and combustion stress can reduce spark quality, leading to misfires, hesitation, and increased fuel consumption. Replacing a worn plug with this OE Match unit helps restore proper ignition timing and reliable combustion performance.
Designed as a direct replacement, this spark plug installs easily with no modification required, making it ideal for routine servicing or replacement of individual plugs.
Function:
• Generates a consistent ignition spark for proper combustion
• Supports smooth idle and responsive throttle response
• Helps maintain fuel efficiency and stable engine operation
• Direct-fit replacement for straightforward installation
A worn or degraded spark plug can cause rough running, misfires, loss of power, and poor 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
• Reduced throttle response or hesitation 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.
99917015790
The product you are viewing cross references to these numbers
The spark plug produces a precisely timed electrical spark inside the combustion chamber to ignite the air-fuel mixture. This process enables efficient combustion, smooth power delivery, and reliable engine performance.
Sold individually, 6 Required per engine.
Fits:
Porsche 911 3.2L Carrera 1984 - 1989
Non Catalyst.
Spark plugs are critical to engine efficiency, power delivery, and smooth running. Over time, heat and combustion stress can reduce spark quality, leading to misfires, hesitation, and increased fuel consumption. Replacing a worn plug with this OE Match unit helps restore proper ignition timing and reliable combustion performance.
Designed as a direct replacement, this spark plug installs easily with no modification required, making it ideal for routine servicing or replacement of individual plugs.
Function:
• Generates a consistent ignition spark for proper combustion
• Supports smooth idle and responsive throttle response
• Helps maintain fuel efficiency and stable engine operation
• Direct-fit replacement for straightforward installation
A worn or degraded spark plug can cause rough running, misfires, loss of power, and poor 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
• Reduced throttle response or hesitation 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.
99917015790
99917015790
WR4CC
The product you are viewing cross references to these numbers
Price: £3.95
In stock
Related products
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 924 2.0L 1976-79
- Porsche 924 2.0L 1980-85
- Porsche 914 (1970-1976)
Information
Spark Plugs WR5DC
6 Required per engine. Price is for each.
Fits:
PORSCHE 911T 2.0L 08.68 - 02.72 81KW 110HP ENGINE 901.03, 901.13
PORSCHE 911T 2.2L 01.70 - 12.72 92KW 125HP ENGINE 911.06; 911.07; 911.08; 911.03
PORSCHE 911T 2.4L 01.72 - 12.73 96KW 130HP ENGINE 911.57; 911.67
PORSCHE 911 2.7L 09.73 - 08.75 110KW 150HP ENGINE 911.92; 911.97; 911.41; 911.46
PORSCHE 911 2.7L 09.75 - 06.77 121KW 165HP ENGINE 911.43; 911.48; 911.81; 911.82; 911.84; 911.85; 911.86; 911.89; 911.90; 911.94; 911.99
PORSCHE 911S 2.7 08.73 - 01.76 129KW 175HP
ENGINE 911.93; 911.98; 911.42; 911.47
PORSCHE 914/6 2.0L 11.69 - 12.73 81KW 110HP ENGINE 901.36; 901.37
PORSCHE 924 2.0L 11.75 - 08.89 92KW 125HP ENGINE XJ; XK
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99917017990
The product you are viewing cross references to these numbers
6 Required per engine. Price is for each.
Fits:
PORSCHE 911T 2.0L 08.68 - 02.72 81KW 110HP ENGINE 901.03, 901.13
PORSCHE 911T 2.2L 01.70 - 12.72 92KW 125HP ENGINE 911.06; 911.07; 911.08; 911.03
PORSCHE 911T 2.4L 01.72 - 12.73 96KW 130HP ENGINE 911.57; 911.67
PORSCHE 911 2.7L 09.73 - 08.75 110KW 150HP ENGINE 911.92; 911.97; 911.41; 911.46
PORSCHE 911 2.7L 09.75 - 06.77 121KW 165HP ENGINE 911.43; 911.48; 911.81; 911.82; 911.84; 911.85; 911.86; 911.89; 911.90; 911.94; 911.99
PORSCHE 911S 2.7 08.73 - 01.76 129KW 175HP
ENGINE 911.93; 911.98; 911.42; 911.47
PORSCHE 914/6 2.0L 11.69 - 12.73 81KW 110HP ENGINE 901.36; 901.37
PORSCHE 924 2.0L 11.75 - 08.89 92KW 125HP ENGINE XJ; XK
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99917017990
99917016590
The product you are viewing cross references to these numbers
Price: £7.18
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 924 2.0L 1976-79
- Porsche 924 2.0L 1980-85
- Porsche 914 (1970-1976)
Information
Spark Plug WR5DC
6 Required per engine. Price is for each.
Fits:
PORSCHE 911T 2.0L 08.68 - 02.72 81KW 110HP ENGINE 901.03, 901.13
PORSCHE 911T 2.2L 01.70 - 12.72 92KW 125HP ENGINE 911.06; 911.07; 911.08; 911.03
PORSCHE 911T 2.4L 01.72 - 12.73 96KW 130HP ENGINE 911.57; 911.67
PORSCHE 911 2.7L 09.73 - 08.75 110KW 150HP ENGINE 911.92; 911.97; 911.41; 911.46
PORSCHE 911 2.7L 09.75 - 06.77 121KW 165HP ENGINE 911.43; 911.48; 911.81; 911.82; 911.84; 911.85; 911.86; 911.89; 911.90; 911.94; 911.99
PORSCHE 911S 2.7 08.73 - 01.76 129KW 175HP ENGINE 911.93; 911.98; 911.42; 911.47
PORSCHE 914/6 2.0L 11.69 - 12.73 81KW 110HP ENGINE 901.36; 901.37
PORSCHE 924 2.0L 11.75 - 08.89 92KW 125HP ENGINE XJ; XK
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99917017990
The product you are viewing cross references to these numbers
6 Required per engine. Price is for each.
Fits:
PORSCHE 911T 2.0L 08.68 - 02.72 81KW 110HP ENGINE 901.03, 901.13
PORSCHE 911T 2.2L 01.70 - 12.72 92KW 125HP ENGINE 911.06; 911.07; 911.08; 911.03
PORSCHE 911T 2.4L 01.72 - 12.73 96KW 130HP ENGINE 911.57; 911.67
PORSCHE 911 2.7L 09.73 - 08.75 110KW 150HP ENGINE 911.92; 911.97; 911.41; 911.46
PORSCHE 911 2.7L 09.75 - 06.77 121KW 165HP ENGINE 911.43; 911.48; 911.81; 911.82; 911.84; 911.85; 911.86; 911.89; 911.90; 911.94; 911.99
PORSCHE 911S 2.7 08.73 - 01.76 129KW 175HP ENGINE 911.93; 911.98; 911.42; 911.47
PORSCHE 914/6 2.0L 11.69 - 12.73 81KW 110HP ENGINE 901.36; 901.37
PORSCHE 924 2.0L 11.75 - 08.89 92KW 125HP ENGINE XJ; XK
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99917017990
0242245552
99917016590
99917017990
The product you are viewing cross references to these numbers
Price: £2.50
Arriving soon