Spark Plug. Porsche 955 Cayenne V6 3.2L 2003-06  ❭  95517021990

Spark Plug, IZKR7B
OE Genuine Porsche spark plug for Porsche 955 Cayenne V6 3.2L models from 2003–2006. This original Porsche spark plug provides the ignition spark required for combustion, helping maintain smooth running, reliable starting and correct engine performance.
Sold individually, 6 required per engine

Fits:
Porsche 955 Cayenne 3.2L V6 (2003–2006) – Engine Code: D9J


Listed with spark plug reference IZKR7B, it helps deliver reliable ignition, smooth running and correct engine performance. Ideal for scheduled servicing, misfire diagnosis, ignition system repairs or replacing worn spark plugs with Genuine Porsche parts.

What This Part Does / Functions
•  Produces the ignition spark inside the combustion chamber
•  Ignites the air/fuel mixture at the correct time
•  Supports smooth idle and clean acceleration
•  Helps maintain engine power and fuel efficiency
•  Supports reliable cold starting
•  Helps reduce misfires caused by worn or incorrect spark plugs
•  Provides correct OE Porsche fitment and heat range
•  Replaces worn, fouled or aged original spark plugs.

Why Replace This Part?
Spark plugs are normal ignition service items and wear over time. The electrode gap can increase, the firing tip can become worn, and the plug can become fouled by fuel, oil or carbon deposits. Worn spark plugs may cause poor starting, rough idle, hesitation, misfires, reduced fuel economy and loss of performance. Replacing the spark plugs with OE Genuine Porsche spark plugs helps restore correct ignition performance and keeps the Cayenne 3.2L V6 running as Porsche intended.

When to Replace This Part
•   During scheduled spark plug service
•   If the engine has a misfire or rough idle
•   If starting becomes difficult
•   If acceleration feels hesitant or uneven
•   If fuel economy has reduced
•   If spark plugs are fouled, worn or damaged
•   During ignition coil replacement or ignition system service
•   When recommissioning a vehicle with unknown service history.

Where It Fits on the Car
 This spark plug fits in the engine cylinder head, with one spark plug fitted per cylinder. It works with the ignition coil to generate the spark required for combustion. Correct installation torque and Porsche workshop procedures should always be followed. Ignition coils, plug wells and coil seals should be inspected during replacement.

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Related, superseded, cross reference or alternative numbers for comparison.

95517021990

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