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E3.80 Spark Plug

SKU # E3.80
$ 6.99

Automotive plug that fits a variety of import and domestic applications.


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E3.80 is a 12mm, 1.000” reach plug with a gasket seat. It fits a wide variety of late model applications, especially import. E3.80 has two legs securing the DiamondFIRE electrode to the shell. This allows for excellent heat transfer, and helps to create more turbulence in the cylinder. The patented DiamondFIRE side wire is proven to increase power, reduce fuel consumption and improve hydrocarbon emissions in long-term use. The unique ground electrode and full-size center electrode also provides optimal performance for a guaranteed five years or 100,000 miles.



Part Number: E3.80

Resistor: Resistor

Hex Size: 5/8"

Thread Reach: 1.000"

Thread Diameter: 12mm

Seat: Gasket

Tip/Gap: DiamondFIRE Fixed Gap Cannot Be Adjusted


Write a review

08/09/2019 11:21 am
Only Plugs I'll ever use...
I use my car for work, putting 300 to 400 miles on it per day. So fuel economy and performance are really important to me, and that's why the first thing I did when I bought my 2013 Kia Soul last April was to install a set of these wonderful plugs. I just replaced those plugs after 60,000 hard miles. I don't believe that standard plugs would have survived that long, not with the driving I have to do. I use my car like a commercial truck so standard parts really just don't cut it. 4 brand new E3.80 plugs and my car is running like new again, cheapest way I know of to ensure the reliability and economy of a car, I'll never go back to standard plugs.