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E3E3.66 DiamondFire Spark Plug - Direct Fit

Part #: PYRE366 | Mfr #: E3.66

In Stock
Ships out in 1-2 Business Days
  • Low Price Guarantee

5 5 out of 5 stars
(4 customer reviews)

$5.95

List Price: $8.99

Save: $3.04

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  • Series: E3 DiamondFire
  • Product Fit: Direct Fit
  • Quantity Sold: Sold Individually
  • Electrode Core Material: Copper
  • Plug Type: Resistor
  • Product Class: Fuel saver
  • Anticipated Ship Out Time: 1-2 Business Days
  • Electrode Tip Material: Nickel alloy
  • Gap Size: 1.016 mm
  • Reach: 25.4 mm
  • Thread Size: 14 mm
  • Warranty: 5-year or 100,000-mile E3 limited warranty
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Product reviews

most un-regrettable purchase ever by zebode, January 31, 2013

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before i bought the E3 spark plugsmy vehicle use to consume more fuel drugjerkfeel heavy like i was driving a heavy duty truck.it also use to have a time lag when the accelerator was pressed. Nowits lighthas more powerno time lag and does not jerk or drug and consumes less fuel.


great plug by rich, June 12, 2012

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I put these plugs in my truck about 1 year ago and now there is no other plug I will use you get more miles per gal and more power to use any other you should have your head ex-ray


Best Sparkplugs by , January 3, 2011

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I just recently change my wifes Mazda Tribute's spark plugs with these E3's and I love them. The car got another 4 mpg and I noticed an increase in power!


works like a charm by gabe, April 29, 2009

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made my car run better and faster you can really feel the difference.