E3 Part # E3.31. Thread: 14mm, Reach: 3/4". Champion Reference: N84, N84G, N86, N86G, N87, N87G, RN2, RN2C, RN2G, RN3, RN3C, RN3G, RN7GY. NGK Reference: BR8EIX, BR8ES, BR8EV, BPR9EIX, BPR9ES, BPR9EVX, BR9EYA, BZ8ES, BZ9ES.

• This flame front ignites the bulk air/fuel mixture faster, moves heat into the combustion chamber faster and creates a more localized pressure front for faster pressure rise during the cylinder power stroke
• Electrode is a combination of performance and technology that results in an improved flame kernel shape
• Unique electrode shape maximizes the power created by the spark plug - Diamond Fire technology
• The result is more complete combustion and an improvement in engine performance