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E3 Spark Plugs

Welcome to E3 Spark Plugs online... home to the advanced DiamondFIRE spark plug technology. If you are a returning E3 visitor, let us know how you like the changes to our website. If you are a new visitor, welcome to the website that's dedicated to bringing you the latest news about increased performance, reduced engine emissions and a better burn for your automotive, powersports, and small engine spark plug. Our mission at E3 has always been reflected in our devotion to the advancements in ignition technology. Now, the new E3 website is an inclusive portal for all spark plug applications as well as a technical center for information about our fuel-efficient line of premium performance OEM replacement plugs. By focusing on improving the ignition cycles of the air-fuel mixture inside your engine's combustion chamber, our products are engineered to be environmentally friendly with a more complete and cleaner burn.

Also, new to the E3 website are enhancements to the E3 Tech Support Center. We've improved your access to the latest technical information about selection and installation. You can check for the latest tips in our Tech Bulletins or Tech Videos sections. You can use our onsite media player to check out the latest E3 Racing & Team Lucas Oil news posted in the E3 Video Center. Moreover, don't forget to stay informed by visiting our News center for the most current blogs, events and press releases.



We have a 1997 Isuzu trooper with over 225,000 miles and were going on a trip about 2,000 miles long, and stock mileage is 14 to 17. After using your E3 plugs our mileage went up to 18 to 23 mpg depending on the driving hills or flat road. We love your plugs and are worth every penny, they paid for themselves just on this trip and more power too! Thanks


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