1978 CHEVROLET K20  - E3 Spark Plugs Spark Plug - E3.40 - E3.40 | 4WD.com
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1978 CHEVROLET K20  - E3 Spark Plugs Spark Plug - E3.40 - E3.40

E3 Spark Plugs Spark Plug - E3.40


  • E3 Spark Plugs | Part Number: E3SE3.40
  • In_Stock:In Stock
  • Fitment:Direct Fit
  • In_Stock:In Stock


E3 automotive spark plugs utilize the latest E3 technologies to help engines operate more efficiently by burning fuel more completely. Our patented design gets the flame (or combustion process) started earlier in the combustion chamber before gas is vented off when the exhaust valves open. Although results may vary dramatically based upon piston displacement and operating conditions, increased combustion efficiency and a faster burn allow E3 equipped engines to minimize the venting of unburned (wasted) fuel.


Question & Answers

1 Answered question

Do you have the E3 Spark plugs for 2016 Chevrolet Silverado 1500? Will this particular spark plug guarantee performance and safe on gas (mpg)? Thank you kindly.

Asked by Metgot from Dearing, GA on

Metgot, the E3 Spark Plugs Spark Plug is not available for your truck just yet. Keep an eye on the site and we should be putting them up as soon as they are being made!

Answered by Zach O. ext 4939 from Dearing, GA on


E3 is known as a spark plug company, but they started out is as a research and development company. Anybody could produce a spark plug because the design had basically stayed static since Henry Ford's Model T. The founders of E3 partnered with the engineering departments at two leading technology universities and invested a lot of money and time in creating a completely renovated spark plug design. The J-wire electrode was replaced by E3 with the patented DiamondFire ground electrode, the basis of E3's superior spark plug performance. With increased burn control E3 spark plugs can offer Jeeps increase power output, fuel efficiency and reduced emissions. Shop E3 Spark Plugs Now