Spark plugs FR5DTC (PACK OF 12), Platinum-iridium. Porsche 964 / 964RS / 993 / 993RS  ❭  99917018390

Spark plugs, FR5DTC, Platinum-iridium
This OE Match platinum-iridium spark plug set contains twelve identical spark plugs, each manufactured to OE-equivalent standards for thread dimensions, electrode geometry, and thermal performance. Replacing all plugs together ensures balanced combustion across cylinders and consistent engine behaviour.
PACK OF 12

Fits:
Porsche 964 C2 / C4 1989 - 1993
Porsche 964 RS 3.6L 1991 -1993 M64.03

Porsche 993 C2 / C4 1994 - 1997
Porsche 993 C2S / C4S 1994 - 1997
Porsche 993 RS M64.20 1994 - 1997

Each spark plug generates a precisely timed electrical spark to ignite the air-fuel mixture in its combustion chamber. As a complete set, they ensure uniform combustion across all cylinders, supporting smooth engine operation and consistent performance.

Function:
•  Produces a reliable ignition spark for efficient combustion
•  Platinum-iridium electrodes improve durability and spark consistency
•  Supports smooth idle and responsive throttle behaviour
•  Helps maintain fuel efficiency and controlled emissions

Spark plugs in air-cooled engines are subjected to high temperatures and sustained combustion stress. Worn or mismatched plugs can cause misfires, uneven running, reduced performance, and increased fuel consumption. Replacing all plugs with an OE Match platinum-iridium set restores stable ignition, balanced combustion, and helps preserve engine reliability and longevity.

When to replace:
•  Engine misfires or uneven idle
•  Hesitation or reduced throttle response
•  Increased fuel consumption
•  At manufacturer-recommended service intervals
•  During routine engine servicing or tune-ups


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99917018390

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