Spark Plugs

[L76PWRD]

I'm almost at 100,000 miles and I need to change out the spark plugs soon. Wat spark plugs do you guys suggest? I'm leaning to stock spark plugs for now.

[DwayneJ]

Stock is good.

[rdnkcpa]

My first set of stock AC-Delco's went 119,000 miles no problem. Replaced them with AC-Delco's. all is good.

[Black02Silverado]

Stock works well I see no need to change brands.

[8.1HD/ALLISON]

Stick with ACDelcos.

[ujtruck]

Stock + Car Quest wire set

[dewfpo]

Why mess with success.

 

DEWFPO

[MikeNH]

Stock is probably fine. On my 03 I bought NGK plugs and MSD wires to use up a Summit gift card I had and they worked fine too. Plus the MSD wires were red so it made the truck faster.

[pm26]

Yes, stock AC Delcos are fine until they are outsourced to China.

[jwhjr]

Stock

[L76PWRD]

Anybody got the part number for stock spark plugs?

[05GMCZ71]

This site can tell ya.

 

http://parts-catalog.acdelco.com/catalog/catalog_search.php