E3SP-E366 14mm, 1.000" reach plug with a taper seat
Couldn't load pickup availability
E3.66 is a 14mm, 1.000 Inch reach plug with a taper seat. It fits a wide variety of late model applications, especially Hemi applications. E3.66 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.
Patented DiamondFIRE Ground Electrode
Edge-To-Edge Ground Electrode Out Performs Other Plug Designs
E3 Equipped Engines Can Minimize Venting Of Unburned Fuel
Burn Fuel More Efficiently By Burning Fuel More Completely
Provide A Like-New Performance For The Life Of The Plug
The Most Environmentally-Friendly Plug Available
We understand that packaging condition can be important to collectors.
Unless otherwise stated in the product description, items listed as new are sold in unopened packaging. Packaging may show minor shelf wear, edge wear, small bends, scuffs, scratches, sticker residue, or other minor imperfections caused by manufacturing, retail handling, storage, or shipping.
Please review all available product photos carefully before purchasing. The photographs are an important part of the product description and help show the actual item's appearance and packaging condition.
Collectors looking for a particular card, box, blister, or packaging condition should contact us before ordering with any questions about a specific item.