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99917019590/5x6
Product Information
Product Information
Spark plugs, 14FR6LDU.
The spark plug restores reliable ignition performance and balanced combustion across all cylinders, ensuring fit and function comparable to the original parts. Supplied as a complete kit, it is designed for complete replacement in compatible six-cylinder Porsche engines.
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>>

This OE Match spark plug set includes six identical spark plugs, each manufactured to closely follow the original Porsche specification. Designed to deliver consistent ignition across all cylinders, the set helps restore smooth engine operation, stable idle, and reliable throttle response.

Replacing spark plugs as a complete set is essential for balanced combustion and even engine performance. Over time, spark plugs degrade due to heat and combustion stress, leading to misfires, poor fuel economy, and reduced performance. This OE Match pack of six provides a cost-effective solution for scheduled maintenance, tune-ups, and engine servicing while maintaining OE-equivalent performance.

Each plug installs directly with no modification required.

Function:
•  Provides reliable ignition for all six cylinders
  Maintains smooth idle and responsive acceleration
  Supports efficient fuel combustion and engine balance
  Supplied as a complete engine set for correct servicing

Worn spark plugs can cause misfires, rough running, increased fuel consumption, and uneven engine performance. Replacing all six plugs together ensures consistent ignition timing across cylinders, helping maintain engine efficiency, performance, and long-term reliability. Using an OE Match set ensures proper operation without compromising on fit or function.

When to replace:
 Rough or unstable idle
 Hesitation or lack of power under acceleration
 Poor fuel economy
 Misfire codes or engine warning signs
  At regular maintenance intervals or during tune-ups

Related reference numbers
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99917019590
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