E3.34 is a 14mm, 0.750” reach plug with a gasket seat. It is used in a variety of powersport applications, especially older Harley Davidson motorcycles. The patented DiamondFIRE ground electrode is secured to the shell with two legs to help facilitate heat transfer, and to withstand the intense vibration of powersport engine applications. The unique DiamondFIRE side wire is proven to increase power, reduce fuel consumption and improve hydrocarbon emissions in long-term use. The E3 ground electrode and full-size center electrode also provides optimal performance over an extended product life.

Advanced spark technology produces a cleaner burning combustion process, which reduces toxic emissions Creates a larger flame kernal resulting in a more complete burn of the available fuel for maximum efficiency Propietary electrode designs presents multiple sharp edges to the center electrode providing maximum performance for longer life Edge to edge design concentrates spark energy resulting in easy starts in all conditions Carbon deposits are reduced by the more complete burn generated from the DiamondFIRE electrode