Ignition Coils for 2003 GMC Sierra 2500

 

The 2003 GMC Sierra uses 8 ignition coils. Some may refer to these as coil packs, but the official name is ignition coils. They are connected to 8 individual spark plug wires. These coils are fairly easy to replace (depending on if your truck has any extra accessories). Continue on to see what kind of ignition coils your 2003 GMC Sierra 2500 uses, and to find the coils you need at reasonable discount pricing.