AM General Hummer Performance Spark Plugs
Trash your factory plugs and twist in a bit of supplemental power. By firing up fuel more effectively, AM General Hummer replacement spark plugs give you more power out of each and every injection. Super-conductive materials including iridium guarantee you can score a great spark every time. Our 10 AM General Hummer Spark Plugs reviews have an average rating of 4.8 out of 5 stars.