E3.74 is a 14mm, 1.000” reach plug with a taper seat. It fits a wide variety of late model applications, especially Ford applications. E3 automotive plugs have three legs securing the DiamondFIRE electrode to the shell. This allows for excellent heat transfer, and helps to create more turbulence in the cylinder. The patented DiamondFIRE side wire is proven to increase power, reduce fuel consumption and improve hydrocarbon emissions in long-term use. The unique ground electrode and full-size center electrode also provides optimal performance for a guaranteed five years or 100,000 miles. Thank you for visiting and shopping with RaeJais, where you can find just about anything your heart or toolbox desires. From gold and diamonds to plumber tools and pool noodles, we’ve got a little bit of everything and then some.Be sure to like, follow, and share using @raejais on all your favorite social media platforms. You never know what you’ll discover next.Shop more treasures, surprises, and everyday finds at www.raejais.com