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E3

E3 Spark Plugs E3.70 Premium Automotive Spark Plug w/DiamondFIRE Technology (Pack of 1)

  • Based on 166 reviews
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Availability: In Stock.
Fulfilled by Amazon
Arrives Thursday, Jun 19
Order within 19 hours and 46 minutes
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Features

  • Automotive spark plug that fits a variety of domestic applications, designed to increase power, reduce fuel consumption, and improve hydrocarbon emissions
  • E3's patented DiamondFIRE edge-to-edge electrode provides maximum performance with increased efficiency, and a faster more complete burn
  • Designed with colder heat ranges to enable performance modifications, and contains Yttrium-enhanced alloy for a reduction in side wire temperature for less pre-ignition
  • Includes one (1) E3.70 spark plug with a limited lifetime warranty
  • Primarily used in a wide variety of automotive and truck applications

Description

The E3.70 auto spark plug is a 16mm, 0.860” reach plug with a taper seat. It fits Ford Triton applications from 2004 to 2008. E3.70 is a unique design that solves a problem with original OE application. The shell is made as a single piece, as opposed to two pieces, so it resists seizing in the engine and breaking apart when being removed. It is widely stocked in automotive retail stores. E3 automotive plugs have three 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: E3.70; Resistor: Resistor; Hex Size: 5/8"; Thread Reach: 0.866"; Thread Diameter: 16mm; Seat: Taper; Tip/Gap: DiamondFIRE Fixed Gap Cannot Be Adjusted. Our unique DiamondFIRE open design forces air gap discharges, creating the preferred edge-to-edge spark path. The design allows replenishment of the spark zone with a fresh fuel/air charge, and exposes the flame front more directly to the piston head than other plug designs. This distinctive spark plug design has proven to simultaneously increase engine power output, reduce gasoline consumption, decrease hydrocarbon and carbon monoxide emissions from the engine, and materially extend the life of the spark plug. Our lawn and garden spark plugs help engines operate more efficiently with a faster and smoother acceleration.

Brand: E3


Core Material: Copper


Gap Size: 0.04 Inches


Thread Size: values


Top Material Type: Alloy Steel


Brand: ‎E3


Core Material: ‎Copper


Gap Size: ‎0.04 Inches


Thread Size: ‎values


Top Material Type: ‎Alloy Steel


Vehicle Service Type: ‎Car


Global Trade Identification Number: ‎01, 00


UPC: ‎894489000701 894489000800


Manufacturer: ‎E3 Spark Plugs


Model: ‎E3 Spark Plugs 4.3167G


Item Weight: ‎1.92 ounces


Product Dimensions: ‎4.78 x 1.5 x 1.6 inches


Country of Origin: ‎China


Item model number: ‎E3.70


Is Discontinued By Manufacturer: ‎No


Manufacturer Part Number: ‎E3.70


OEM Part Number: ‎E3.70


Date First Available: February 19, 2011


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Thursday, Jun 19

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews

    • Always happy with E3
Worked great on my 2005 F-150 fx4 5.4L. Better throttle response, smoother idling and quicker start ups. Now i don't have to about breaking plugs with the stronger design over stock. When i got my truck someone had already changed the motorcraft plugs to autolite plugs. But my truck felt sluggish like it was stopped up or now getting a good burn. So sea foamed the motor than put in the E3 plugs and was amazed with the more power i got. Plus the E3 have a 100,000 mile guarantee. ... show more
Reviewed in the United States on September 9, 2013 by WBJJ1984
    • Quality Product!!
Really like these plugs, they are a one piece unit that will not break off into the heads on these 5.4L Triton engines. We replaced the factory plugs with these and a set of Bravex coil packs, and the truck runs so much better now. I would recommend these plugs to anyone over the pricy Autolite, Champion, or Motorcraft. ... show more
Reviewed in the United States on May 27, 2019 by Bryan D
    • spark plugs deteriorated after a couple of thousand miles
Review Image by consumer consumer
These spark plugs are in terrible shape shape after just a couple of thousand miles. Started having rough idle, loss of power, and misfires. All of them are corroded. One lost (burned out?) the central electrode. Going back to use OEM spark plugs on my F-150
Reviewed in the United States on May 18, 2024 by consumer consumer
    • Does not fit 2012 ford expedition or later.
I don't know should this one star should be for Amazon or E3sparkplugs?? Amazon fit engine showed they would fit my 2012 ford expedition (5.4L). I bought them, They don't fit. Amazon should modify their fit engine on their website with sensitive equipment to determine the fitness of certain stuff on certain model. I should have contacted E3 spark plugs technical support before making the purchase. I don't know how to ship them back, they will cost me almost double the price. Update; Thanks Amazon for refunding me. I would give it 5 stars, amazon was so cooperative. ... show more
Reviewed in the United States on December 7, 2013 by Engineering Support
    • E3 Plugs work for Ford F150 5.4
Had a problem with yerking on low rpm. Replace plugs with E3's and my truck is running great and smooth again. Only drawback is that plugs needs a different size socket than the OE plugs, which makes it kinda difficult with this engine where you need a special plug removal socket to reach them. However, did manage to do them with standard socket and extention. ... show more
Reviewed in the United States on March 7, 2014 by David Lusse
    • Awesome but I received one bad plug
I received these plugs and was excited! I ordered them last year end of May 2012. I installed them near the end Jul 2013. When installing I realized I had one bent plug(serves me right for not checking the packages before storing). It would have cost me more to send back with the shipping and everything then to buy a new one(so I did order a new one). However, the plugs work AWESOME (yeeaaahh(say it like lil john))! In the end I just order a new one from Amazon.com. ... show more
Reviewed in the United States on July 29, 2013 by Dusty
    • Strange
Sent 7 new ones and 4 used ones...
Reviewed in the United States on August 16, 2024 by Mike
    • Dreaded plug change 04 F150 5.4
Tackled the dreaded sparkplug change on my 04 F150 5.4. Had to use the Leslie Extraction tool for 6 of the 8. All came out successfully. Performance of tool was exactly as advertised. Installed E3 3.70 plugs. What a difference in the trucks performance. Smoother idle, noticablly better acceleration. Still evaluating MPG. Installation was a snap. Very,very pleased with purchase. Both products purchased from Amazon. Will recomend to friends. ... show more
Reviewed in the United States on June 2, 2012 by GR

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