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- 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
This BOSCH spark plug set (pack of 4) is a complete ignition service solution for Porsche four-cylinder engines, supplying all spark plugs required for a full replacement on the 924S, 944, 912E, and 968 models. Designed to meet OEM specifications, this set ensures consistent ignition performance and balanced combustion across all cylinders.
PACK OF 4
Fits:
Porsche 924S 2.5L 1986 - 1988
Porsche 944 / 944S / 944S2 / 944T 1985 - 1991
Porsche 912E
Porsche 968 1992 - 1995 Coupe
Spark plugs are a critical engine component, responsible for igniting the air-fuel mixture within the combustion chamber. Correct specification spark plugs help maintain smooth engine operation, reliable cold starting, efficient fuel combustion, and stable performance under varying driving conditions. Worn or incorrect spark plugs can lead to misfires, rough idle, reduced power, and increased fuel consumption.
Manufactured by Bosch, a trusted original equipment supplier, these spark plugs are engineered to the correct heat range and electrode configuration required for Porsche four-cylinder engines. Their high-quality construction promotes long service life, reduced fouling, and dependable ignition performance, making them ideal for routine servicing, preventative maintenance, or restoration of classic and modern transaxle Porsche models.
• Generates a strong, consistent spark for efficient combustion
• Supports smooth idle, improved throttle response, and reliable starting
• Helps maintain fuel efficiency and overall engine performance
Key Functions & Benefits:
• Genuine Bosch manufacture
• Complete set of 4 spark plugs
• OEM-quality materials and precision engineering
• Correct specification for Porsche four-cylinder engines
• Long service life with stable ignition performance
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99917015690
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This kit is comprised of the following items:
- Porsche 957 Cayenne 3.0L Diesel 2007-10
- Porsche 958 Cayenne V6 3.0L Diesel (245Hp) 2010-17
- Porsche 958 Cayenne S V8 4.2L Diesel (382Hp) 2010-17
- Porsche 970.1 Panamera Diesel V6 3.0L 2011-13
- Porsche 970.2 Panamera Diesel V6 3.0L (250Hp) 2014-16
- Porsche 971.1 Panamera 4S Diesel V8 4.0L 4WD (422 Hp) 2017-18
- Porsche 971.1 Panamera 4S Diesel 4.0L Twin-Turbo V8 Sport Turismo 2017-18
- Porsche 95B.1 Macan S Diesel 3.0L V6 (258Bhp) 2014-18
Porsche Diesel Glow Plug – 6 or 8 required per engine
Sold each
The glow plug is an essential component for Porsche diesel engines, fitted to Cayenne, Panamera and Macan diesel models. It ensures reliable cold starting and efficient combustion by pre-heating the air in the combustion chamber before ignition.
Fits:- Porsche 957 Cayenne 3.0L Diesel 2007-10
- Porsche 958 Cayenne V6 3.0L Diesel (245Hp) 2010-17
- Porsche 958 Cayenne S V8 4.2L Diesel (382Hp) 2010-17
- Porsche 970.1 Panamera Diesel V6 3.0L 2011-13
- Porsche 970.2 Panamera Diesel V6 3.0L (250Hp) 2014-16
- Porsche 971.1 Panamera 4S Diesel V8 4.0L 4WD (422 Hp) 2017-18
- Porsche 971.1 Panamera 4S Diesel 4.0L Twin-Turbo V8 Sport Turismo 2017-18
- Porsche 95B.1 Macan S Diesel 3.0L V6 (258Bhp) 2014-18
What This Glow Plug Does
Glow plugs heat the combustion chamber to assist ignition in diesel engines, especially in cold conditions.
They help:
• Ensure smooth and reliable cold starts
• Improve fuel combustion efficiency
• Reduce emissions during start-up
• Support stable engine performance
• Minimise engine misfires during warm-up
Why Glow Plugs Fail
Glow plugs are exposed to high temperatures and repeated heating cycles, making them a common service item.
Common causes include:
• Wear from repeated heating cycles
• Carbon build-up on the tip
• Electrical failure of the heating element
• Age-related degradation
Symptoms of Faulty Glow Plugs
• Difficult or slow engine starting
• Rough idle when cold
• Increased exhaust smoke on start-up
• Glow plug warning light on dashboard
• Reduced fuel efficiency
Why Replace Your Glow Plugs
• Restore reliable cold starting performance
• Improve combustion efficiency
• Reduce emissions and smoke
• Prevent further engine strain
• Maintain diesel engine reliability
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
PAB963319
The product you are viewing cross references to these numbers
- Porsche 958 Cayenne V6 3.6L Petrol (300Hp) 2010-17
- Porsche 958 Cayenne S V8 4.8L Petrol (400Hp) 2010-17
- Porsche 95B.1 Macan S Petrol 3.0L V6 (340Bhp) 2014-18
- Porsche 95B.1 Macan Turbo 3.6L V6 (400Bhp) 2014-18
The Porsche Genuine OE Spark Plug 99917023590 is the factory-specified ignition plug for petrol-powered Macan, Cayenne, and Panamera models with 3.0L and 3.6L V6 engines from approximately 2014 to 2018. It delivers the reliable spark, combustion quality, and durability expected from OE Porsche components, maintaining smooth engine performance and efficient burn throughout the lifespan of the engine.
Sold individually, 6 spark plugs required per engine.
Fits:
Porsche 95B.1 Macan S 3.0L / Turbo 3.6L 2014 - 2018
Porsche 958 Cayenne 3.6L V6 Turbo / V6 Turbo GTS 2015 - 2018
Porsche 970.2 Panamera S 3.0L 2014 - 2016
Designed as a direct replacement for both 99917023590 and the earlier 99917023390, this spark plug installs without modification and is ideal for routine servicing, scheduled maintenance, or replacement of worn ignition components.
Spark plugs play a vital role in the engine’s ignition system by producing the electrical spark that ignites the air-fuel mixture in each cylinder. Proper ignition ensures smooth engine starting, efficient combustion, and stable performance across idle and load conditions. This OE spark plug ensures the correct heat range, electrode design, and spark characteristics Porsche engineers specified for optimal combustion performance.
• Routine engine servicing and ignition tune-ups
• Replacing worn or fouled spark plugs to restore smooth performance
• Ignition system refresh during diagnostic work
• Routine maintenance to support fuel economy and emissions performance
• OEM part fit for restorations or warranty-compliant repairs
Spark plugs gradually wear due to heat, carbon build-up, and electrode erosion. As they age, the spark can weaken and combustion becomes less efficient, leading to rough idle, hesitation, poorer fuel economy, and increased emissions. Replacing plugs with Genuine Porsche OE spark plugs ensures correct gap, heat range, and ignition performance - preserving engine smoothness and power delivery to factory levels.
When to replace:
• At manufacturer-recommended service intervals
• During routine ignition system servicing
• If experiencing misfires, rough idle, or hesitation
• When engine starting becomes inconsistent
• If fuel economy drops or emissions increase
• During engine diagnostics or rebuild work
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99917023590
The product you are viewing cross references to these numbers
- Porsche 958 Cayenne V6 3.6L Petrol (300Hp) 2010-17
- Porsche 958 Cayenne S V8 4.8L Petrol (400Hp) 2010-17
- Porsche 95B.1 Macan S Petrol 3.0L V6 (340Bhp) 2014-18
- Porsche 95B.1 Macan GTS Petrol 3.0L V6 (360Bhp) 2014-18
- Porsche 95B.1 Macan Turbo 3.6L V6 (400Bhp) 2014-18
(6 per car) price is each
Fits:
Porsche 95B Macan S 3.0L / Turbo 3.6L 2014-18
Porsche 958 Cayenne 3.6L V6 Turbo / V6 Turbo GTS 2015-18
Porsche 970 Panamera S 3.0L 2014-16
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
94660210404
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