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E3 Spark Plugs E3 Spark Plug 14mm


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E3 Spark Plug 14mm
More than 10 available
E3 Spark Plug
  • Resistor: Resistor
  • Hex Size: 5/8"
  • Thread Reach: 1.000"
  • Thread Diameter: 14mm
  • Seat: Taper
  • Tip/Gap: DiamondFIRE Fixed Gap Cannot Be Adjusted
  • 1/pkg
  • Ships

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    E3.74 is rated 3.5 out of 5 by 13.
    Rated 5 out of 5 by from Best Spark Plugs Best spark plugs ever!! Car has much more power, if I can keep my foot off the accelerator im sure better gas mileage too!!
    Date published: 2018-11-14
    Rated 5 out of 5 by from best plug I have ever purchased First tried e3 in my Motorcycle. Increased MPG by 4-7 depending on my riding. I have purchased for my 2014 Ford focus Cannot wait to see the results
    Date published: 2016-08-01
    Rated 5 out of 5 by from nice plugs i bought these plugs for my 2010 sho and they have made a real differance in mpg. i dont really notice any power increase, but it does run a lot smoother. i had them delivered by ground and got them 3 days later. i've had no problems with jegs or spark plugs.
    Date published: 2016-06-22
    Rated 2 out of 5 by from Misfire a lot I installed it in my Honda, never had a fouled spark plug in my cars until I bought this spark plugs. They don't last long.
    Date published: 2021-05-27
    Rated 1 out of 5 by from Engine missfire Purchased for my ecoboost 3.5L. After about 1 yr had misfire issues? Removed plugs and found top end had split open and inner coil had popped out. Contacted E3 rep and nothing was done about it. Installed Autolite plugs and runs great. Also had issue with Hyundai with 4cyl engine, did not come apart at tip but had combustion leak at ceramic end. I do not recommend, will waste your money.
    Date published: 2022-12-21
    Rated 1 out of 5 by from Garbage Put in 2017 gmc sierra 1500 6.2. Didnt last 3 days before they started misfiring and causing knocking . So i took em out and replaced. Might work good in lawnmower??
    Date published: 2020-11-21
    Rated 1 out of 5 by from Can't be gapped, misfire in LSx engine I got a deal on E3 plugs and decided to try them on my 5.3 Silverado. I pulled the stock plugs out at 65k miles and installed the E3's and a set of MSD wires. The truck started and ran well.....for a week and a half. It started running rough and felt like it had misfires. Knowing the plugs and wires might be to blame I started pulling plugs. Three of them looked fouled. I had a buddy take me to the auto parts store where I bought NGK's. I checked the gap, lubed them with anti-seize, and installed them. The truck ran great again and the plugs were in the truck when I got rid of it years later.
    Date published: 2019-09-10
    Rated 1 out of 5 by from Repeated misfires 2011 Buick Regal turbo. Just my opinion. I do not recommend. 1,400 miles on them, misfired like crazy. Changed out back to recommended factory brand. Very displeased....
    Date published: 2019-08-28
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    can these help with spark knock on a ford raptor 6.2L

    Asked by: Juan2020
    These plugs may help, but you made need to make other adjustments to your engine also.
    Answered by: Rusty B
    Date published: 2018-04-23

    would these work on a 2015+ mustang ecoboost with a custom tune?

    Asked by: Jose97
    Yes that is the listed plug from E3 for your application.
    Answered by: Seth W
    Date published: 2018-02-12

    This will work on a 2010 ford fusion sport 3.5L natuarlly aspirated?

    Asked by: Nappy1993
    This is the correct plug for your car.
    Answered by: Jon Jegs Tech
    Date published: 2018-01-15

    I have a 2016 polaris slingshot ,motor size is 234 cc on a ecotech 4 cyl it uses ac Delco 41-103. I want to change plugs to E3 - 74? Do you think it would b a good idea?

    Asked by: terry 2
    It would be a good idea to try this, E3 plugs have shown power gains in many applications.
    Answered by: Rusty B
    Date published: 2017-11-13

    Will these work in my 2013 f150 5.0 when running E85 or would I need to run regular to use these

    Asked by: Barmstrong
    These plugs can be ran with either regular or E85 fuel.
    Answered by: Jegs Tech
    Date published: 2017-08-24
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