E3.10 Spark Plug

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E3.10 Spark Plug
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ITEM # : E3.10


E3.10 Small engine plug that fits a wide variety of 2-cycle and 4-cycle engines. Most often used in a wide assortment of Lawn & Garden equipment, especially lawnmowers.




E3.10 is a 14mm, 0.375” reach plug with a gasket seat. It is used in multiple small engine applications, especially lawn & garden. The ground electrode is designed with E3’s patented DiamondFIRE technology which is proven to improve power, increase fuel efficiency, and dramatically lower hydrocarbon emissions in long-term use. The unique ground electrode and full-size center electrode also provides optimal performance over an extended product life.


  • CHAMPION: J17LM, J19LM, J8C, RJ17LM, RJ19LM, RJ8C, 5861
  • NGK: B2LM, B4LM, B6S, BR2LM, BR4LM



Part Number: E3.10

Resistor: Non-Resistor

Hex Size: 13/16"

Thread Reach: 0.375"

Thread Diameter: 14mm

Seat: Gasket

Tip/Gap: DiamondFIRE Adjustable Gap


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