Ignition Coils For 2004 GMC Sierra 1500 HD

 

The 2004 GMC Sierra uses 2 different type of ignition coils. Square Melco, and round Delphi. Our product pages will help you find out which kind of these your 04' Sierra 1500 HD uses. Replacing these coils can restore power, and fuel economy. Select the engine size of your GMC Sierra to find the ignition coils for your GMC Sierra 1500 HD.