E3 Spark Plugs E3.38

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

• 14mm Thread, 0.750″ reach plug with a gasket seat

• It is used in a variety of powersport applications, especially import motorcycles

• E3.38 is often in used in Honda, Suzuki, Yamaha, and other high RPM engines

• 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

• Cannot be gapped