Buy 2005 Porsche Cayenne Direct Ignition Coil. Ignition Coil - Repair or Replace A failed ignition Plug, Voltage - OEM Porsche Part # 9A790509300 (9A7-905-093-00)

Coil On Plug (COP) Ignition Coil. Direct Ignition Coil.
An induction Coil, placed on each sparkPlug of a vehicle and used with and ECU and a Camshaft or Crankshaft position sensor for timing, to transform a vehicles battery voltage to a much higher voltage needed to create proper spark in the spark Plug.

Direct Ignition Coil

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Ignition Coil - Repair or Replace
A failed ignition coil in your 2005 Porsche Cayenne can lead to anything from an intermittent misfire to a car that won't start.