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Your Vehicle  //  Porsche  //  964 (911) (1989-1994)  //  964 (911) TURBO 3.3L 1991-93
Porsche964 (911) (1989-1994)964 (911) TURBO 3.3L 1991-93Special Offer Parts

Spark Plugs

Spark Plugs

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Spark Plugs (PACK OF 6). Porsche 965 3.3L Turbo - 99917018690, 9991700IW24
1
Spark Plugs (PACK OF 6). Porsche 965 3.3L Turbo
9991700IW24x6
Product Information
Product Information
Spark Plugs (PACK OF 6). Porsche 965 3.3L Turbo

Ultra Fine Electrode

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.

PACK OF 6

Fits:
Porsche 965 3.3L Turbo (M30.69)

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Related, superseded, cross reference or alternative numbers for comparison.

9991700IW24x6
99917018690
9991700IW24

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Spark Plugs (PACK OF 6). Porsche 965 Turbo / 993 Turbo / 996 Turbo / 996 GT2 / 996 GT3 - 99917019590, 99917019290, 99917018390
3
Spark Plugs (PACK OF 6). Porsche 965 Turbo / 993 Turbo / 996 Turbo / 996 GT2 / 996 GT3
99917019590/1x6
Product Information
Product Information
Spark Plugs,14FR6LDU.
PACK OF 6

Fits:
Porsche 964 C2 / C4 1989 - 1993
Porsche 964 RS 3.6L / 3.8L 1991 - 1993
Porsche 964 TURBO 3.3L / 3.6L 1991 - 1993

Porsche 993 C2 / C4 1994 - 1997
Porsche 993 C2S / C4S 1994 - 1997
Porsche 993 RS 1994- 1997
Porsche 993 Turbo / Turbo S 1994 - 1997
Porsche 993 GT2 1994 - 1997

Porsche 996 TURBO 2000 - 2005
Porsche 996 GT2 2001 - 2005
Porsche 996 GT3 MKI 1999 - 2002
Porsche 996 GT3 MKII 2003>>

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Related, superseded, cross reference or alternative numbers for comparison.

99917019590
99917019590
99917019290
99917018390

The product you are viewing cross references to these numbers
Spark Plugs (PACK OF 6). Porsche 965 Turbo / 993 Turbo / 996 Turbo / 996 GT2 / 996 GT3 - 99917019590, 99917019290, 99917018390
3
Spark Plugs (PACK OF 6). Porsche 965 Turbo / 993 Turbo / 996 Turbo / 996 GT2 / 996 GT3
99917019590/2x6
Product Information
Product Information
Spark Plugs, 14 FR-6 LDU
The BERU spark plug set (pack of 6) is a complete ignition service solution engineered for high-performance Porsche engines, including the rear-engine 965 Turbo and 993 Turbo, as well as 996 Turbo, 996 GT2, and 996 GT3 models.
PACK OF 6

Fits:
Porsche 964 C2 / C4 1989 - 1993
Porsche 964 RS 3.6L / 3.8L 1991 - 1993
Porsche 964 TURBO 3.3L / 3.6L 1991 - 1993

Porsche 993 C2 / C4 1994 - 1997
Porsche 993 C2S / C4S 1994 - 1997
Porsche 993 RS 1994- 1997
Porsche 993 Turbo / Turbo S 1994 - 1997
Porsche 993 GT2 1994 - 1997

Porsche 996 TURBO 2000 - 2005
Porsche 996 GT2 2001 - 2005
Porsche 996 GT3 MKI 1999 - 2002
Porsche 996 GT3 MKII 2003>>

Manufactured to meet exact Porsche OE specifications, this set provides all six spark plugs required for a full engine service, ensuring efficient combustion and reliable performance under everyday and high-load driving.

Spark plugs play a vital role in engine operation by igniting the air-fuel mixture inside each combustion chamber. Correct specification spark plugs help maintain smooth idle, strong throttle response, fast cold starting, and efficient fuel combustion. The demanding conditions of turbocharged and high-revving Porsche engines make regularly replacing spark plugs critical to avoiding misfires, uneven running, power loss, and increased emissions.

Produced by BERU, a trusted supplier of ignition technology and long-time partner to Porsche, these spark plugs are designed with precise heat range and electrode configuration to withstand the demands of performance engines. Their durable construction resists fouling and electrode wear, delivering consistent spark performance and long service life, whether on the street or the track.

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

99917019590
99917019590
99917019290
99917018390

The product you are viewing cross references to these numbers
Spark plug connector, cylinder 3 exhaust. Porsche 964 / 993 - 91160231300
3
Spark plug connector, cylinder 3 exhaust. Porsche 964 / 993
Special Order item
91160231300
Product Information
Product Information

Genuine Porsche spark plug connector this connector is for cylinder 3 on the exhaust side; it is a spark plug connector.

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

    Check fitment for your specific vehicle (model, year, engine) before ordering.

    Diagram ref no 26

What This Product Does

This connector forms the connection between an ignition lead and its spark plug. It is an ignition connection component, rather than the spark plug itself or a complete ignition lead set.

Functions

  • Connects the ignition lead to the spark plug terminal.
  • Provides the plug-end connection within the ignition circuit.
  • Allows renewal of the connector when inspection identifies deterioration.

Technical Details

  • Porsche part number: 91160231300.
  • Porsche identification: cylinder 3, exhaust-side spark plug connector.

Symptoms of Fault

  • Misfiring or an uneven idle.
  • Hesitation, particularly under engine load.
  • Ignition problems that become more noticeable in damp conditions.
  • Cracked insulation, loose connections or corroded terminals.
  • Tracking marks indicating electrical leakage.

Why Replacement Matters

A deteriorated connector can interrupt the ignition connection or allow electrical leakage. Replace it when inspection confirms damage, corrosion or poor contact, rather than assuming that a misfire identifies this component alone. Check the associated lead and spark plug during diagnosis, as faults elsewhere in the ignition system can produce similar symptoms.

FAQs

Is this a spark plug or a complete lead set?
No. Part 91160231300 is the spark plug connector.

Should replacement be based only on a misfire?
No. Inspect the connector, lead and plug, and confirm the fault before replacing components.




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

91160231300
91160231300

The product you are viewing cross references to these numbers
DISPLAYING 1 to 4 (of 4 products)
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About Spark Plugs

Special Offer Spark Plugs – Discounted Genuine and Performance Ignition Components

Special Offer Spark Plugs bring together discounted genuine, OEM-quality and performance ignition components designed to ensure efficient combustion, smooth engine operation and reliable starting performance. This category features limited-time promotions and clearance pricing on high-quality spark plugs from trusted automotive brands.

At Design911, our Special Offer Spark Plugs include genuine manufacturer-approved plugs and premium aftermarket options from leading brands such as Bosch, NGK and other performance ignition specialists — all selected for correct heat range, durability and precise engine compatibility.

What Do Spark Plugs Do?

Spark plugs are essential engine components responsible for igniting the air-fuel mixture inside the combustion chamber. Their key functions include:

• Creating the electrical spark required for combustion
• Supporting efficient fuel burn and engine performance
• Maintaining smooth idle and throttle response
• Improving fuel efficiency and reducing emissions
• Ensuring reliable cold starts and consistent power delivery

High-quality spark plugs help protect engine components while maintaining optimal performance across all driving conditions.

Why Choose Special Offer Spark Plugs?

Special Offer Spark Plugs are ideal for customers seeking reliable servicing parts at reduced pricing. Benefits include:

• Discounted genuine and OEM-quality spark plugs
• Access to premium ignition brands at promotional prices
• Cost-effective routine servicing and maintenance
• Limited-time savings on essential engine components
• Trusted compatibility with Porsche and performance vehicles

At Design911, all discounted spark plugs meet strict quality and specification standards to ensure correct fitment, heat range accuracy and long-term reliability.

When Should You Replace Spark Plugs?

Special Offer Spark Plugs are ideal when:

• Performing scheduled engine servicing
• Addressing misfires or rough idling
• Improving fuel efficiency and throttle response
• Restoring performance on high-mileage engines
• Taking advantage of limited-time promotional pricing

Replacing worn spark plugs at the recommended intervals helps maintain engine efficiency, reduce strain on ignition components and ensure consistent performance.

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