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e3.42 automotive spark plug by e3 spark plugs - single pack logo

E3.42 Automotive Spark Plug by E3 Spark Plugs - Single Pack Review

6

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Average

Revainrating 3.5 out of 5  
Rating 
3.3
🧯 Ignition Parts, 🛠️ Replacement Parts

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Details

BrandE3 Spark Plg
Gap Size0.04 Inches
Thread Size14mm
Top Material TypeAlloy Steel
Vehicle Service TypeCar

Description of E3.42 Automotive Spark Plug by E3 Spark Plugs - Single Pack

Near elimination of performance inhibiting carbon deposits, dramatically longer plug life and a 5-year/100, 000 mile limited. Diamond fire electrode technology that creates a superior spark and resulting flame front extending further into the cylinder, producing more localized pressure. Significant potential power increase: > 6% to 12% (depending on engine class).

Reviews

Global ratings 6
  • 5
    2
  • 4
    2
  • 3
    0
  • 2
    0
  • 1
    2

Type of review

Revainrating 4 out of 5

Easy to install and operate.

Fits my 91 Chevy C1500 perfectly. Ordered 6 for my 4.3 and put 5 down because one broke. I ordered another one to complete the set. But so far so good!

Pros
  • handy piece
Cons
  • I have no real complaints about it, everything is fine

Revainrating 5 out of 5

That's great! for spark plugs and wires

I guarantee you will feel the difference on any car/truck. More horsepower, faster starts and smoother idles. My truck stays on the hills and feels a lot more confident on the gas pedal.

Pros
  • This is amazing
Cons
  • Crumpled

Revainrating 4 out of 5

So far so good: Ignition parts

I resisted the reviews and still took them with me. So far I'm glad I did it. Runs great, no problems so far. I have inline 6 carburetors and they work fine. Tbh, I don't think I would see much of a change from traditional spark plugs. Will be updated over time.

Pros
  • Lots of positive emotions
Cons
  • Very expensive

Revainrating 1 out of 5

False advertising - spark plugs

The description says 4/bx which to me suggests if you order quantity 1 you will receive 1 box of 4 so I ordered quantity 2 thinking I would Got 8 which I need but got 2 single candles instead. I think you are false advertising and you should be a bit more specific in your description. not happy at all

Pros
  • Shipping was very quick
Cons
  • Null

Revainrating 1 out of 5

Don't buy better replacement parts

DO NOT BUY THESE CHEAP SPARK PLUGS IF YOU CAN'T MAKE IT TWICE, MAKE IT RIGHT AND MAKE IT THE FIRST TIME. These spark plugs immediately rejected all my engine power, loss of power, I have an automatic engine, SHIFT 1st to 2nd was too long, 2nd to 3rd was too fast, and 3rd to 4th I have almost half my Lost engine power, I just had the engine rebuilt by a Chevrolet dealer for $1800 under warranty and they did a dyno test to show me the cause of the engine power loss. I bought Ngk spark plugs and…

Pros
  • Handsfree
Cons
  • I vaguely remember

Revainrating 5 out of 5

E3 spark plugs nothing but facts ma'am

My K1500 Blazer almost failed the dynamometric hydrocarbon smog test last time, it was borderline 78ppm HC, max CA at 15mph. I have about E3 -Read spark plugs and thought I'd put them in place of the Bosch U Grove platinum ones the truck had. Not only does the truck feel springier, but it now idles with new E3 spark plugs. Here is the emissions data on the dyno before and after the spark plug change: 15 mph - HC was 78ppm now 55ppm CO was 0.25ppm now 0.12ppm NO was 587 now 373.25mph - HC was…

Pros
  • cool product
Cons
  • something different