Specification
Brand
E3 Spark Plugs
Item Number
E3.66
Thread Diameter
14 mm
Thread Reach
1.000 in
Seat Type
Tapered
Hex Size
5/8 in
Resistor
Yes
Center Electrode Core Material
Copper
Center Electrode Tip Material
Nickel
Ground Electrode Tip Material
Nickel
Pre-Gap Size
1.397 mm
Insulator Type
Ceramic
Shorty Spark Plug
No
Tip Configuration
Nickel
Wrench Diameter
0.813 in
Description
The E3.66 Automotive Spark Plug is engineered to deliver superior performance for late-model vehicles, particularly those with Hemi engines. Its unique DiamondFIRE electrode design ensures excellent heat transfer and increased turbulence in the cylinder, resulting in more power, improved fuel efficiency, and reduced emissions. This spark plug is pre-gapped at the factory and cannot be adjusted, ensuring optimal performance out of the box. Backed by a five-year or 100,000-mile warranty, the E3.66 is a reliable choice for enhancing your vehicle's ignition system.
Disclaimer
Ensure compatibility with your vehicle before purchase. Installation should be performed by a qualified technician. Warranty is subject to terms and conditions.