Not sure which 2002 GMC Sierra Spark Plugs are right for you? We have over 146 customer reviews, with an average rating of 4.5, to help you find exactly what you're looking for. Here's what some of our customers have said:
"I installed these plugs, following Pulstar's directions for gap etc. The truck starts faster ( was never slow) & seems to have a little better power. I have not had a chance to check out the MPG, but expect to see a slight increase - will know more about that in a month or so, after a couple tanks of fuel." —Bob G from Wichita, KS bought a Pulstar Eco-MPG Series Spark Plugs for a 2002 GMC Sierra, 5.3L V8.