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E3 Spark Plugs E3.66 Premium DiamondFIRE Power Automotive Spark Plug

(Jeep Grand Cherokee 2005-10, Wrangler 2003-11, Liberty 2002-05, TJ 2003, 2005-06, Commander 2006-09; Chevrolet Camaro 2010-12, Impala 2012 + 121 more models)

Part of: E3 Spark Plugs DiamondFire Premium Automotive Spark Plugs

Other options in this family: E3 Spark Plugs E3.42 E3 Spark Plugs E3.40 E3 Spark Plugs E3.46 E3 Spark Plugs E3.48 E3 Spark Plugs E3.54

Manufacturer

Picture for manufacturer E3 Spark Plugs

Part Number

E3.66
17 reviews
Sale Price

$7.97

In Stock (10+)

delivery box

Usually delivered within 2 days

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No Hassle Returns

No Hassle Returns

Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

The E3 Spark Plugs E3.66 is a premium automotive spark plug engineered with advanced combustion technology to maximize engine performance. Featuring E3's patented DiamondFire ground electrode design, this spark plug delivers a faster, more complete burn that translates to increased power output, improved fuel economy, and reduced emissions.

Key Features:

  • Patented DiamondFire edge-to-edge ground electrode design for superior combustion efficiency
  • Increases combustion pressure during each power stroke for enhanced engine performance
  • Improves fuel economy through more complete fuel burn
  • Reduces harmful emissions in all gasoline engines
  • Backed by years of fundamental combustion research and testing
  • Direct-fit replacement for easy installation

The unique ground electrode configuration creates optimal spark conditions that maximize the flame kernel's exposure to the air-fuel mixture, resulting in measurable performance gains across all operating conditions. Whether you're looking to restore lost performance or optimize your engine's efficiency, the E3.66 spark plug delivers proven results.

Products specifications

Fits

Jeep Grand Cherokee 2005-10, Wrangler 2003-11, Liberty 2002-05, TJ 2003, 2005-06, Commander 2006-09; Chevrolet Camaro 2010-12, Impala 2012, Colorado 2004-10, Malibu 2004-12, Equinox 2008-12, Trailblazer 2002-09, Caprice 2012 + 116 more models

Electrode Core Material

Copper

Electrode Tip Material

Nickel alloy

Ground Strap Quantity

One

Insulator Type

Projected

Quantity

Sold individually.

Shorty Spark Plug

No

Spark Plug Seat Style

Tapered

Spark Plug Thread Size

14mm

Prop 65

WARNING: This product can expose you to chemicals; including chromium; which is know to the State of California to cause cancer or birth defects or other reproductive harm. For more information; visit www.P65Warnings.ca.gov

Great products,great prices,great customer service.

I like the transparency when ordering from Autoplicity. Not only is the ordering process easy, time from order-to-delivery prompt, but I can see how much the shipping costs will be when ordering. That is of the utmost importance to me.

Didn’t know you all existed!! By far lowest priced AND free shipping!!!!

product was as described and arrived ahead of estimated delivery date

Very simple and easy.

Quick delivery.

Great price and free delivery!

They where to big to fit but everything else was good on how fast was delivered n price but just not right thanks

So far ordering was easy and steady in went threw unlike others sites I tried previously!

On Monday I placed an order for a Moroso Battery Switch (which was competitively priced BTW) and sitting here Wed afternoon I've got my switch in hand. Autoplicity was perfect every step of the way, including immediate notification of the order receipt, notification of shipment, even notification that it had been delivered (and it was waiting on my front porch). Packing was suitable too. Couldn't be happier. Buy with confidence. Kev

Quick turnaround and the best prices on the web!

easy quick

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Autoplicity had the lowest listing price for a part which I had done extensive research. To make the deal much sweeter, free shipping! On top of that, part was delivered in only a few days! Really, there was no reason NOT to order from them. Great prices and fast response are the reasons why I look forward to continued business with Autoplicity. Overall a positive experience, so I highly recommend.

Excellent prices, inventory and fast service. I placed my order on Saturday, Aug 4, it was shipped on Monday, Aug 6, and due to arrive on Friday. I will be a repeat customer with prices and service like this.

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