E3.39 Spark Plug

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ITEM # : E3.39
Motorcycle spark plug that fits a variety of powersport applications.




E3.39 is a 10mm, 0.750” reach plug with a gasket seat. It is used in a variety of powersport applications, especially import motorcycles. E3.39 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. 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.

Part Number: E3.39

Resistor: Resistor

Hex Size: 5/8"

Thread Reach: 0.750"

Thread Diameter: 10mm

Seat: Gasket

Tip/Gap: DiamondFIRE Fixed Gap Cannot Be Adjusted

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