Not sure which 2001 Mercury Grand Marquis 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:
"After 350 miles on Pulstar Iridium plugs and my car's computer adapting to this new condition... AMAZING RESULTS.
Herman." —Herman S from Hialeah, FL bought a Pulstar Performance Series Spark Plugs for a 2001 Mercury Grand Marquis, 4.6L V8.