E3 Spark Plugs E3.53 Premium Automotive Spark Plug with DiamondFIRE Technology

The E3.53 automotive spark plug is designed for a variety of domestic applications, offering superior performance and efficiency. With a 14 mm. thread diameter and 0.708" reach, it features a taper seat for secure installation. It's equipped with E3's patented DiamondFIRE technology, where the electrode is securely attached to the shell using three legs. This innovative design increases engine power, enhances fuel efficiency, and reduces harmful hydrocarbon emissions over long-term use. The DiamondFIRE side wire promotes a faster and more complete fuel burn, while the full-size center and ground electrodes deliver consistent, reliable performance. This results in smoother acceleration, reduced fuel consumption, and lower emissions. Its unique open design facilitates fresh air/fuel charge replenishment.

DiamondFire technology enhances combustion efficiency and engine performance Delivers up to 12% more power and up to 13% better fuel economy in small engines Features a 14 mm. thread diameter and 0.708" reach More complete burn helps to reduce emission and minimize carbon buildup Built with Yttrium-enhanced alloy for durability and pre-ignition prevention Compatible with a wide range of domestic automotive applications This product is backed by a 5-year/100,000-mile limited warranty