Shop OEM General Motors Part # 12689268. Direct Ignition Coil. 4.2 LITER TWIN-TURBO. CT6; 4.2L. Ignition Coil - Repair or Replace A failed ignition coil in your

Coil. Ignition. Assembly -. On Plug (COP). Direct.
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

Fits CT6

4.2 LITER TWIN-TURBO. CT6; 4.2L.
Ignition Coil - Repair or Replace
A failed ignition coil in your can lead to anything from an intermittent misfire to a car that won't start.