Spark plugs (PACK OF 6), Double-iridium. Porsche 997 Turbo / 991 Turbo  ❭  99917022890

Spark plugs, FR6 NPP, Double-iridium
OE Match double-iridium Spark Plug Set (Pack of 6) is designed to replicate the original Porsche factory spark plugs in fit, heat range, and ignition performance. Supplied as a complete set of six, it is intended for high-performance turbocharged Porsche engines.
PACK OF 6

Fits:
Porsche 997 Turbo / Turbo S 3.8L 2010 - 2013
Porsche 997 GT2 RS 2011 - 2013 
Porsche 991 Turbo / Turbo S 3.8L 2014 -2020 

This OE Match double-iridium spark plug set includes six identical spark plugs, each manufactured to OE-equivalent standards for thread dimensions, electrode geometry, and thermal characteristics. Featuring iridium on both the centre and ground electrodes, these plugs provide a finer, more stable spark and significantly improved resistance to wear compared to conventional spark plugs.

Turbocharged Porsche engines operate under extreme heat and pressure, making ignition quality critical. This OE Match set supports stable combustion, smooth idle, sharp throttle response, and efficient fuel burn under boost. Replacing all six spark plugs together ensures balanced ignition across cylinders and consistent power delivery throughout the rev range.

Designed as direct replacements, these spark plugs install without modification and are ideal for routine servicing, tune-ups, or ignition system maintenance.

Function:
•  Provides reliable ignition for all six cylinders
•  Double-iridium electrodes enhance spark stability and durability
•  Supports smooth idle and responsive acceleration
•  Helps maintain power delivery, fuel efficiency, and emissions control

Spark plugs in turbocharged engines are exposed to extreme temperatures and pressures. Worn or degraded plugs can lead to misfires, hesitation under boost, reduced power, and increased fuel consumption. Replacing all six plugs with an OE Match double-iridium set restores reliable ignition, balanced combustion, and helps protect ignition coils and engine components.

When to replace:
•  Engine misfires or rough idle
•  Hesitation under acceleration
•  Reduced throttle response or power delivery
•  Increased fuel consumption
•  At manufacturer-recommended service intervals
•  During routine engine tune-ups or ignition servicing

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Related, superseded, cross reference or alternative numbers for comparison.

99917022890

The product you are viewing cross references to these numbers