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Spark Plugs

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DISPLAYING 1 to 7 (of 7 products)
99917019590/1x6
Product Information
Product Information
Spark Plugs (PACK OF 6). Porsche 965 Turbo / 993 Turbo / 996 Turbo / 996 GT2 / 996 GT3
Spark Plug 14FR6LDU.

bosch
PACK OF 6

Fits:

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>>



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99917019590
99917019590
99917018390

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99917019590/2x6
Product Information
Product Information
Spark Plugs (PACK OF 6). Porsche 965 Turbo / 993 Turbo / 996 Turbo / 996 GT2 / 996 GT3
Spark Plug 14FR6LDU.

beru
PACK OF 6

Fits:

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>>



Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

99917019590
99917019590
99917018390

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Special Order item
477012203A
Product Information
Product Information
Spark plug wrench. 
Doesn't come with the key. Available separately. Part number 99957105202

porsche

Fits:
Porsche 911 1965-89
Porsche 964 1989-94 Turbo
Porsche 914 1970-76

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

477012203A
477012203A

The product you are viewing cross references to these numbers
Special Order item
99917019590
Product Information
Product Information
Spark plug 14FR6LDU.
Price is for each.

porsche

Fits:

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>>



Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

99917019590
99917019590
99917018390

The product you are viewing cross references to these numbers
Special Offer
99917019590/1
Product Information
Product Information
Spark plug, 14FR 6LDU.
Price is for each.

bosch

Fits:

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>>



Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

99917019590
99917019590
0242240566
99917018390

The product you are viewing cross references to these numbers
Special Offer
99917019590/2
Product Information
Product Information
Spark plug 14FR6LDU.
Price is for each.

beru

Fits:

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>>



Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

99917019590
99917019590
99917018390

The product you are viewing cross references to these numbers
Special Offer
99917019590/3
Product Information
Product Information
Spark Plug 14FR6LDU.
Price is for each.

ngk

Fits:

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>>



Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

99917019590
99917019590
14FR6LDU
99917018390

The product you are viewing cross references to these numbers
DISPLAYING 1 to 7 (of 7 products)
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About Spark Plugs

Porsche Spark Plugs | Design911 High-Performance Ignition Components for Power & Efficiency

Spark plugs play a vital role in the performance, efficiency, and reliability of your Porsche’s engine. They ignite the air-fuel mixture inside the combustion chamber, creating the precise explosion needed to generate power. High-quality spark plugs ensure clean ignition, smooth acceleration, and reduced emissions — helping your Porsche perform exactly as intended on every drive.

At Design911, we stock a full range of spark plugs from leading manufacturers, engineered for superior conductivity, heat resistance, and long service life. Available in iridium, platinum, and copper-core designs, each spark plug is precision-crafted to match your Porsche’s specific ignition requirements. Ideal for routine maintenance, tuning, or complete engine rebuilds, our spark plugs ensure reliable performance from idle to redline.

What Do Spark Plugs Do?

Spark plugs are critical ignition components that deliver the electric spark required to ignite the air-fuel mixture in the combustion chamber.

Core Functions:
• Create a high-voltage spark to initiate combustion.
• Ensure smooth, efficient engine operation.
• Support optimal fuel economy and throttle response.
• Reduce emissions through clean, consistent ignition.
• Maintain balanced power delivery and idle stability.

When properly maintained, spark plugs enhance both performance and fuel efficiency, ensuring your Porsche runs with precision and reliability.

Why Do Spark Plugs Fail or Degrade?

Spark plugs operate under intense pressure, heat, and chemical exposure — gradually wearing down over time and mileage.

Common Causes of Failure Include:
• Electrode wear from prolonged high-temperature operation.
• Carbon or oil fouling from incomplete combustion.
• Cracked or degraded insulators due to thermal stress.
• Incorrect heat range or plug gap settings.
• Age-related corrosion or weakened spark performance.

Failing spark plugs can cause rough idling, misfires, reduced fuel economy, and loss of power — making regular replacement essential to maintain your Porsche’s performance.

Why Replace or Upgrade Your Porsche Spark Plugs?

Replacing worn spark plugs restores full ignition efficiency, fuel economy, and responsiveness. Upgrading to performance-grade materials can also improve durability and spark precision for motorsport or tuned applications.

Key Benefits:
• Restores smooth acceleration and idle stability.
• Improves fuel efficiency and throttle response.
• Reduces misfires, vibration, and engine hesitation.
• Available in platinum, iridium, and copper-core configurations.
• Compatible with Porsche 911, 944, 968, Boxster, Cayman, Panamera, and Macan models.
• Ideal for servicing, tuning, or complete engine rebuilds.

Design911’s Porsche spark plugs deliver performance, precision, and protection — ensuring consistent ignition and long-lasting reliability for your Porsche engine.

Highlights

• Premium Porsche spark plugs for all engine types.
• Precision-engineered for reliable combustion and performance.
• Available in standard and high-performance variants.
• Improves efficiency, throttle response, and emissions.
• Fits both classic and modern Porsche models.
• Perfect for servicing, performance tuning, or restoration.

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