Ignitions and Electrical› Ignition Components

E3 SPARK PLUGS

SPARK PLUG AUTOMOTIVE

$20.14

SKU: E02M E3.66EACH

In Stock
In Stock
Ships by Jun 19
Free Shipping
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Easy — 1–2 hours

Description

The E3 Spark Plugs E3.66each is an automotive spark plug designed for a wide variety of late model applications, particularly Hemi engines. It features a 14mm thread diameter, a 1.000" thread reach, and a taper seat. The spark plug utilizes a DiamondFIRE electrode with three legs, promoting heat transfer and cylinder turbulence. Its patented DiamondFIRE side wire is claimed to increase power, reduce fuel consumption, and improve hydrocarbon emissions. The unique ground and full-size center electrodes are guaranteed for five years or 100,000 miles.

Fitment

Fitment Guaranteed

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on fit.

Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

BrandE3 SPARK PLUGS
Part NumberE02M E3.66EACH

Buy with Confidence

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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