E3 Powersport Spark Plug E3.31 Diamond Fire 1 New Personal Watercraft

E3.31 is a 14mm, 0.750” reach plug with a gasket seat. It is used in a variety of power sports applications, especially in snowmobile and Personal Watercraft. 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 a full-size center electrode also provides optimal performance over an extended product life.

Replaces:

 

CHAMPION:  RN2C, RN3C, RN57YC

NGK:  BR7ES, BR8ES, BR9ES, BPR7ES, BPR8ES, BPR9ES

Part Number: E3.31

Resistor: Resistor

Hex Size: 13/16"

Thread Reach: 0.750"

Thread Diameter: 14mm

Seat: Gasket

Tip/Gap: DiamondFIRE Fixed Gap Cannot Be Adjusted

Reviewed by E3man

01/10/2018 - 12:30:55 PM

Best plugs!

I run E3.31 plugs in all of my toys love this plug better gas mileage 

And throttle response couldn't be happier with the company