E3 Spark Plugs Power Sports E336 E3 Motorcycle Spark Plug

Last updated: February 6, 2023


You'll find this spark plug has a wide variety of applications, including automobiles, ATVs, watercraft, chainsaws and lawnmowers. It's able to reduce side-wire temperature by 8%, which makes it more durable. It's also able to handle intense conditions, which is why it's often the top choice among professional drivers.

We looked at the top Spark Plugs and dug through the reviews from some of the most popular review sites. Through this analysis, we've determined the best Spark Plug you should buy.

Product Details

Key Takeaway: This spark plug is used by professional car drivers, which speaks to its reliability.

In our analysis of 12 expert reviews, the E3 Spark Plugs Power Sports E336 E3 Motorcycle Spark Plug placed 6th when we looked at the top 12 products in the category. For the full ranking, see below.

From The Manufacturer

Autolite Copper Core Spark Plugs deliver quick starts, improved fuel economy, and smooth acceleration. The copper-glass seal bonded insulator, terminal post, and center electrode ensure a tight seal that is 100 percent leak-proof, and the full copper core electrode improves heat transfer and optimizes plug life. Copper Core Spark Plugs feature high alumina ceramic for high dielectric strength, and a steel shell for installation robustness. The multi-rib insulator reduces the danger of “flash over” to prevent misfires, and the copper core center electrode provides higher thermal conductivity. These spark plugs are engineered with a high nickel alloy center and ground electrode for extended life. Autolite has over 100 years of engineering experience and has sold over 11 billion plugs. Since its inception, the Autolite brand has provided the automotive aftermarket and Original Equipment manufacturers the highest quality ignition products. Designed and engineered in the USA.

Expert Reviews


What reviewers liked

To complement its cold heat range, the Yttrium-enhanced alloy reduces this plug’s side wire temperature by up to eight percent.
View our Spark Plug buying guide for in-depth advice and recommendations.

From our partners